Is1978~1.pdf

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मानक

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Jawaharlal Nehru

IS 1978 (1982): Line pipe [MTD 19: Steel Tubes, Pipes abd Fittings]

“!ान $ एक न' भारत का +नम-ण” Satyanarayan Gangaram Pitroda

“Invent a New India Using Knowledge”

“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता ह” है” ह Bhartṛhari—Nītiśatakam

“Knowledge is such a treasure which cannot be stolen”

IS: 1978- 1982 (tle8flirmed 2002) 1 Q?$$+ (Reaffirmed

SP”ECIFICATION FOR LINE’PIPE (

Second Revision )

Fourth Reprint FEBRUARY 1998

UDC 621.643.2

: 665.6/.7

0 Copyright 1984 BUREAU MANAK

Gr 12

OF BHAVAN,

INDIAN

STANDARDS

9 BAHADUR SHAH NEW DELHI 110002

ZAFAR

MARG

April

1984

Is:l!m-1982

Indian Standard SPECIFICATION ( Steel Tubes,

FOR LINE PIPE

Second Revision)

Pipes and Fittings

Sectional

Committee,

SMDC 22

Chairman SHRI HARI BHU~HAN C-11/67 Moti Bagh-I New Delhi

[email protected]

Members

Steel Tubes of India Ltd, Dewas SWR~A.S. AQARWAL SHRI D. V. N. SA~TRY(Alternate) SWRIS. C. ANAND SHRI R. K. ABROL ( Ahmate )

Bharat Steel Tubes

SHRI S. N. BASU

Directorate General of Supplii tion Wing), New DeIhi

Ltd, New Delhi h Disposals

( Inspec-

SHRI T. N. UBOVEJA ( A&mate) Engii;-zegief’s

CDR D. N. BERI

Branch,

Army

Headquarters,

LCDR R. K. SURZ ( AL&mate ) Kalinga Tubes Ltd, Calcutta BRIG S. D. S. BAALLA SHRI P. K. MOHANTY ( Altnnnte) Export Inspection Council, Calcutta SHRI D. P. BHATTACHARJEE SHRI S. C. ARORA ( Ahrnata ) Indian Oil Corporation Ltd, Bombay SHRIJ. D. BHINFARKAR SHRI P. C. JOHARI ( Alternate ) Superintendence Co of India (P) Ltd, Calcutta SHRIB.B. CHAKRAVERTI SHRI A. K. SHOVE (Ahmate) Public Works Department (Public Health Branch), SHRI L. M. CHAUDHRI Government of Haryana, Chandigarh SHRZ K. K. GAXDHI ( Alternate) DEPW DIRECTOR STANDARDS Research, Designs & Standards Organization, Ministry of Railways, Lucknow ( Loco ) CHEMIST & METALLUROIST-I (RDSO ) (Alternate) Directorate General of Technical Development, New SHRI S. K. GHOSH Delhi SHRI K. A. SRIVASTAVA( Altcmate)

( Co&wed on pate 2 )

&I Cqyighr BUREAU

1984

OF INDIAN STANDARDS This publication is protected under the* Indian Co,uyrighf Acr ( XIV of 1957 ) and reproduction in whole or m part by any means except wirh written Permission of the publisher shall be deemed to be an infringement of copyright under the said Act.

h

IS : 197%- 19811 ( Continuedfrom puge 1 ) Refircsenting

Members SHRI S. GOWRISANKARAN SHRI ONKAR S. KANWAR

Bharat Heavy Electricals Ltd, Tiruchirapalli Assoptin of Indian Engineering Industry, e

New

SHRI P. R. GUPTA ( Altarnata ) Hindustan Shipyard Ltd. Visakhapatnam SHRI M. C. KESAVARAO SHRI M. VEERABABU( Altematr) Ministry of Agriculture SHRI H. M. KAUL SHRI B. KUMAR Stewarts & Lloyds of India Ltd, Calcutta SHRI T. K. BASU ( Alfcmatu ) Indian Register of Shipping, Bombay SHRI S. KUMAR SHR~ S. CHANDRA ( Alternate) Indian Tube Co Ltd, Jamshedpur SRRI M. C. KUMARA(IWAMY SHRI D. D~A (AI&ma&) Steel Authority of India Ltd ( Rourkela S tee1 Plant ) , SHRI P. K. MORAPATRA Rourkela SHRI H. S. BEDI ( Alfernatu ) The Fertilizer (Planning & Development) India SHRI K. MUKHERJEE Ltd, Sindri SHRI R. K. SINNHA ( Alteraotr ) Zenith Steel Pipes h Industries Ltd, Khopoli SHIU S. NEELAK~TAN Dn A. R. KE~KA~ (Altcmatr) Tube Products of India, Madras SHRI S. RAN~AWAWLW SHRI M. THOLKAPPLAN ( Alternate ) Oil & Natural Gas Commission, Dehra Dun SHRI G. P. ~ARABHAI SHRI V. K. CHATIJRVEDI ( Ahnatc ) Gujarat Steel Tubes Ltd, Ahmadabad SHRI APOORVA SHAH SHRI H. J. TXIAKER( Atfcrnntc ) Central Boilers Board, New Delhi SHRI P. T. SHANRARAN NAYAR SHRI G: S. GOSAL (Alternate) Federation of Engineering Industries of India, New SHR~ J. R. D. SONI Delhi SHRI A. N. RAO ( Ahrnate) The Indian Seamless Metal Tut& Ltd, Bombay SRRI B. R. TANEJA SHRI 0. P. KAKKAR ( Alterna#c ) Director General, IS1 ( Ex-ojicio Member ) SEIRI C. R. RAMA RAO. Director ( Strut & Met) (Srcreta~)

Panel for Revision of IS : 1978 Line Pipe, SMDC 22 : P30 Convener Bharat Steel Tubes Ltd, New Delhi

SHRI S. C. ANAND

Members SHRI R. K. ABROL ( AItcrnafr to

Shri S. C. Anand ) SI~RIK. DAMODARAN SHRI M. K. KILAM ( Ahrnafe

Oil and Natural Gas Commission, Dehra Dun ) ( Conh’nued on page 78 )

fndian Standard SPECIFICATION (

FOR LINE PIPE

Second Revision) 0.

FOREWORD

0.1 This Indian Standard ( Second Revision ) was adopted by the Indian Standards Institution on 30 August 1982, after the draft finalized by the Steel Tubes, Pipes and Fittings Sectional Committee had been approved by the Structural and Metals Division Council. 0.2 This standard was first published in 1961 and its first revision was issued in 1971. While reviewing this standard the Committee felt necessary to issue a further revision incorporating the following: Extensive changes to bring it in line with the current practices; Amendment No. 1 issued to IS : 1978-1971*; Revised grades to read as YSt 170, YSt 210 and YSt 240 in place of grades YSt 18, YSt 21 and YSt 25; Procedure for repair of weld seam of ERW and induction welded pipes; and Some guidelines in Appendix A for ordering line-pipes. 0.3 In the preparation of the standard assistance has been derived from the following publications: API 5L 1980 Specification for line pipe. American Petroleum Institute. ASTM A 53-1980 Specification for welded and seamless steel pipes. American Society for Testing and Materials. 0.4 Gas metal arc welded process which is also in vogue in other countries has not been included in this revision but would be considered for inclusion after sufficient experience is gained with the use of this process within the country. 0.5 This

standard

contains

clauses 7.3, 7.5.1.2, 7.5.4, 8.3.1, 8.7 (b), between the purchaser and the

9.1 and 13.1 which call for agreement

manufacturer. *Specification for line pipe (jrst rctiion).

3

E 1

z

e L__,_.______

~-___ ____._

..__.____._____

_.__

IS : 1978 - lYg2 0.6 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS : 2-1980%. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard. 1. SCOPE

1.1Thisstandard covers seamless and welded line pipes. It includes standard weight ( Std) and extra strong threaded pipe ( XS ) and standard weight plain end, regular weight plain end, special plain end, extra strong plain and double extra strong plain end pipe ( XXS ). The purpose of this specification is to provide standards for pipe suitable for use in conveying gas, water and oil in both the oil and natural gas industries. 2. TJZRMINOLOGY 2.0 For the purpose of this standard, the following definitions shall apply. a.1 Seamless Pipe - Seamless pipe is defined as wrought steel tubular product made without a welding seam, manufactured by hot working of steel or, if necessary, by cold finishing, the hot-worked product to produce the desired shape, dimensions and properties.

2.2 Electric Welded Pipe - Electric welded pipe is defined as manufacturing a pipe with one longitudinal seam formed by electric resistance welding or electric induction welding without the addition of extraneous metal. The weld seam of these pipes in Grade YSt 240. shall be heat-treated after welding to a minimum temperature of 538°C or processed in such a manner that no untempered martensite remains. 2.3 Butt Welded Pipe ( Grade YSt 170 only ) - Butt welded pipe ( including continuous weld process) is defined as manufacturing a pipe having one longitudinal seam formed by mechanical pressure to make the welded junction, the strip being furnace heated to the welding temperature prior to welding. 2.4 Submerged Are Welding Pipe ( Grades YSt 210 and YSt 240 only ) Submerged arc welded pipe is defined as manufacturing a pipe having one longitudinal eeam formed by automatic submerged arc welding using at Ieast two weld passes, one of which shall be on the inside of the pipe and the other on the outside. End welding of longitudinal seams of submerged arc welded pipe, if not done by automatic submerged arc welding, shall be done by a procedure and welder qualified in accordance with Appendix A. *Rules for rounding off numerical valuu ( revircd).

4

IS : 1978- 1982 2.5 Double Seam Welded Pipe (Applicable to Grades YSt 210 and YSt 240

in Sizes Larger than 914 mm OD ) - Double seam pipe is defined as pipe having two longitudinal seams formed by the submerged arc welding process defined in 2.4. The location of the seams shall be approximately 180° apart. All requirements specified herein for submerged arc welded pipe shall be applicable to double seam welded pipe. All weld tests shall be performed after forming and welding. 3. PROCESS OF MANUFACTURE 3.1 Process of manufacture shall be one of those defined in 2. 3.2 Heat Treatment - Pipes furnished to this specification may be as rolled, normalized and tempered, sub-critically stress relieved or sub-critically age hardened. 4. SUPPLY OF MATERIAL 4.1 General requirements relating to the supply of line pipes shall be as given in IS : 1387-1967’:. 4.2 The steel used for the manufacture of pipes shall be made by open hearth, electric furnace, basic oxygen or a combination of these processes. In case any other process is employed by the manufacturer, prior approval of the purchaser should be obtained. 5. GRADES 5.1 Line pipes shall be of the following types and grades: Grade Designation

Type of Pipe

Seamless, electric welded

YSt 170, Yst 210, YSt 240

Submerged arc welded

YSt 210,YSt 240

Butt welded

YSt 170

6. CHEMICAL REQUIREMENTS 6.0 Composition of pipe furnished to this specification shall conform to the chemical requirements as specified in 6.1 for the grade ordered. ‘General

requirements

for the supply of metallurgical

5

materials

(@

rsubion).

IS : 1978 - 1982 6.1 Laddle Analysis - The laddle analysis of the steel for different grades should conform to the following: Lrt&ile Analysis, Percent __-__----__~-I--_-_

Grade

Carbon

YSt YSt Yst Yst

170 Class I 170 Class11 210 240

hOTB

-Claw

Manganese rc_h_-7

Sulphur

----7

Phosphorus

Max

Min

Max

Max

%G---

O-21 Q21 0.22 0.27

0.30 0.30 -

O-60 0.60 0.90 1.15

0.06 O-06 0.05 0.05

@045 -

0.045 0080 0.04 0.04

for threading

operations.

( II ) steel

is rc-phosphorized

and is beneficial

MlZX

6.1.1 When requested by the purchaser, the manufacturer shall furnish a report for grades YSt 210 and YSt 240 pipe giving the laddle analysis of each heat of steel. For grades YSt 170 pipe, the manufacturer may certify that the material furnished has been analysed and meets the chemical requirements of this specification.

6.2 Product Analysis - When so specified by the purchaser, the manufacturer shall furnish a report on product analysis for finished nipc of 60.3 mm outside diameter and larger. Two samples shall be analysed for product analysis; one from each of two lengths of pipe from each lot of 400 lengths or less of each size from 60.3 to 141.3 mm outside diameter, one from each of two lengths from each lot of 200 lengths or less of each size from 168.3 mm to 323.8 mm outside diameter; and one from, each two lengths from each lot of 100 lengths or less of each size of 355.6 mm outside diameter and larger. For multiple length pipe, a lengthshall be considered as all of the sections cut from a particular multiple length. The samples shall be taken as follows: a) Seamless Pipe - At the option of the manufacturer, cuttings or drillings for product analysis shall be taken. either from tensile test specimens or from the pipe at severa pomts around the finished pipe. If drillings are used, the minimum drill size shall be 13 mm and drillings shall be taken by drilling all the way through the pipe wall. b) Welded Pipe - At the option of the manufacturer, cuttings or drillings for product analysis shah be taken from the finished pipe, plate, skelp, tensile test specimens or flattening test specimens. The location of the samples shall be a minimum of 90” from the weld. Samples shall be taken in such a manner as to represent the total wall thickness. The minimum drill size shall be 13 mm. 6

E

IS:l978-1982 The composition so determined shall conform to the laddle analysis limits, within the following permissible variations for product analysis: Carbon Percent: Seamless pipe

+ 0.03

Welded pipe

+ 0.04

Manganese, percent

* 0.05

Phosphorus, percent

rt: 0.01

Sulphur, percent

+ 0.01

6.2.1 Re-tests- If the product analysis of both the lengths of pipe representing the lot fail to conform to the specified requirements, at the manufacturer’s option, either the lot shall stand rejected or all the remaining lengths in the lot shall be tested individually for conformance to .the specified requirements. If only one of the two samples fails at the manufacturer’s option, either the lot shall stand rejected or two re-test analysis shall be made on two additional lengths from the same lot, If both re-test analysis conform to the requirements, the lot shall be accepted except for the length represented by the initial analysis which failed. If one or both of the re,test analysis fail, at the manufacturer’s option, the entire lot shall be In ,’rejected or each of the remaining lengths shall be tested individtlally. the individual testing of the remaining lengths in any lot, analysis for on13 the rejecting element or elements need be determined. Samples for re-test analysis shall be taken in the same manner as specified for producl analysi: samples. 6.3 Mill Control Product Analysis - A product analysis shall be made by the manufacturer as a mill control of each heat of steel used for the proJxtion of pipe under this specification. A record of such analysis shall be available to the purchaser. 6.4 Chemical Analvsis Procedure - For the above chemical reauirements, $e steel shall be analysed in accordance with IS : 228* and iis relevant parts or the other procedures agreed upon between the purchaser and the manufacturer. 7. DIMENSIONS

AND WEIGHT

7.0 During manufacturing, weights given below: *Methods

for chemical

analysis

line pipes shall conform to the dimensions and of steels. 7

IS : 1978 - 1982 and Weights - Dimensions,and weights of line pipes shall conform to the requirement specified in Tables 1 and 2.

7.1 Dimensions

NOTE -The plain end weight, Wpe, for such pipes shall be calculated following formula: Wjr=0*02466(D--t)t

using the

where w’r = Weight of plain end pipe in kg/m, D = Outside diameter in mm, and t = Wall thickness in mm.

7.1.1 Wall Thickness - Each length of pipe shall be measured for conformance to wall thickness requirements. The wall thickness at any points shall be within the tolerance specified in 7.5.2 except that for welded pipe, the weld area shall not be limited by the plus tolerance. Wail thickness measurements shall be made with a gauge fitted with contact pins of circular cross-section of 6.35 mm diameter. The end of rhe ‘pin contacting the inside surface of the pipe shall be rounded to a radius less than internal diameter of the pipe. The end of the pin coritacting the outside surface of the pipe shall be either flat or rounded to a radius of not less than 38 mm.

7.1.2 Weight - Each length of pipe of 141.3 mm outside diameter and larger, shall be weighed separately and the carload weights determined. Length of pipe of 1143 mm of outside diameter and less, shall be weighed either individully or in convenient lots, at the option of’ the manufacturer and the carload weights determined. Threaded and coupled pipe shall be weighed with the couplings screwed on, but without thread protectors except for carload weighings, for which proper allowance shall be made for the weights of thread protectors. The weights so determined shall conform to the specified weights for plain end or to the calculated weights for threaded and coupled pipe, within the tolerances specified in 7.5.3. NOTE -Calculated weights for threaded and coupled pipe shall be determined as follows: wL= (WjCX t) +Cw where WL -

Calculated weight of a threaded pipe in kg. _ = The length of pipe measured to the outer face of the coupling in metres. P Weight gain or lossdue to end finishing in kg. For plain end pipe 6” equals to zero.

Wbc = Weight of plain end pipe in kg/m

L &

7.2 Straightness - Pipes of less than 114.3 mm outside diameter shall be reasonably straight. The pipe of 114.3 mm outside diameter and more shall be random checked for straightness and deviation from a straight line shall not exceed 0.2% of the length. Measurements may be made by using a taut string or wire from end to end along the side of the pipes and measuring the greatest deviation. 8

IS :1978-1982

TABLE

1

DIMENSIONS, WEIGHTS AND TEST PRESSURES STANDARD-WEIGHT THRRADED LINE PIPE

OF

(Clauses 7.1, 8.1 nnd 11.52’) OUTSIDE DIAYEntBR

D

WALL THICKNESS t

(1)

(2)

(33

mm

mm

mm

1.7 2.2 2.3

10.3 13.7 17.1 21.3 26.7

6 8 f

z

20

.

80 1:: 125 150

22:;

33.4 42.2 48.3 60.3 73.0 88.9 101.6 11*3 141.3 168.3

5‘5 5’7 6.0 6.6 7.1

219.1 219.1

;:2”

200 200 250 250 250

;:F: 273.0

9.3

300 300 350 400 450 500

323.8 323.8 355.6 406.4 457.0 508.0

8.4 9’5 9.5 9’5 9.5 9.5

;:;

~N~IDB DIAMETER

d

CALCULATED WEIGHT F---h---

‘t’lain End WPe

_

*Threads and Coupling

TEST PRESSIJR~, A4in ~____h___--_~

&ode YSt 170

Grade

--Grade

YSl:! 10 YSt ‘240

(5)

(6)

(7)

mm

kg/m

kg

100 ki’a

100 kpa

6.9 9.3 12.5 15.7 20.9

0.36 0.62 0.84 1.28 1.70

0.09 0.09

48 48 4% 48 48

48 48 4% 4% ,:i;

26.6 35.0 40.9 52.5 62.6

2.52 3.43 407 5.42 8.69

0’09 0’27 0.1% 0.54 0.82

77.9 90.2 102.3 128.1 154.1

Il.31 13’i8 16.02 21.92 28”‘2 L

5.82 1.45 2’00 2.54 3.27

69 83 83 -

205.1 202.7 258.9 257.5 254.5

36.61 42.65 46’51 51.03 60.50

6.72 6.36 9.01 8.72 7.95

-

307.1 304.9

65.35 73*65 81.08 92.98 10484 116.7%

14.80

-

C-1)

:z: ::9”:0”

*Weight gain due’ try end finishing (~6 7.1.2 ).

ua

0.09 0.09

z’: 13.62 16.16 19’07

48 76 76 76 76

. -._ -

76 90 90 ;8 1:: ;“s 99

IS : 1978- 1982 TABLE

2

DIMENSIONS,

WEIGHTS AND TE LINE PIP E? (Clauses

OUT-

NOMNAL

NATlON

SIZE

SIDE

DIAYwrER

D

(2)

PRESSURES

,’

7.1, 8.1 and 11.5.2)

PLAIN WALL INSIDE TEST PRLSSURE, Min END Trmxc- DIA- ~_-_----h-_---~ WEKUiT Grade Grade METER YSt 210 Yfii 240 d r-_h-_ r__*___ Stand- Alter- Stand- Alternate nate ard ard

(3)

(4)

mm

kg/m

mm

(6)

(7)

(8)

(9)

(10)

100 kPa

100 kPa

100 kPa

100 kPa

48 59

-

-

48 59-

-

-

48 iz

-

zz 69

-

f

Std XS

10.3 10.3

0.36 0.47

6.9 5.5

48 59

-

8”

Std XS

13.7 13.7

0.62 0.79

;:;

48 59

-

10 10

Std XS

-17.1 17.1

0.84 1.10

:x::

E 15

Std

21.3 21.3 21.3

1.28 1.61 2.55

15.7 13.9 6.3

S8 20 25 2255

CsiS

ii

iii&

26.7 26.7 26.7

1.70 2.19 3.64

20.9 18.9 11.1

2;

Std XS XXS

33.4 33.4 33.4

2.52 3.2 1 5.45

26.6 f4.4 15.2

48 59 69

-

%

iz 42.2

3.43 451 7.77

35.0 32.4 22.8

83 124 152

-

Std XS XXS

48.3 48.3 48.3

407 5.43 9.58

40.9 38.1 27.9

83 124 152

-

60.3 60.3 60.3 60.3 60.3 60.3 60.3

3.01 3.97 4.51 5.03 5.42 6.07 6.57

56.1 54-7 53.9 53’1 526 51-5 5o.7

a7 -

-

Std

50

48

-

Sld

Std

OF PLAIN-END

48

1Sr . 172 172

-

2;

-

90 131 158

-

1:: 158

-

48

101 172 172 172

Grade Yst 170 Stand-

( Continued )

10

Is : 1978: 1982 TABLE

2

DIMENSIONS,

DasraNATION

OUT-

SIDE

WEIGHTS AND TilST LINE PIPE - Cod

PLAIN

END

WALL

THICK-

(2)

mm 50 50

65

XS xxs

Std

f: 80

80

Std

(3)

(4)

OF PLAWEND

TEST PREIURE, Min INSIDE DIA- ~-_-_-*-----__~ METaR Grade Grade

d

(1)

PRESSURES

(6)

Yst 210 YSt 240 r__h--_ _---Stand- Alter- .Stand- Alterard nate ard nate (7)

(81

(9)

(10)

Grade

YSt 170 Standard (11)

mm

kg/m

mm

100 kPa

100 kPa

100 kPa

60.3 60’3 60.3 60.3

7,43 8.51 9.31 13.47

49.3 47.5 46.1 38.1

172 172 172 172

-

172 172 172 172

73.0 73.0 73.0 73.0 73.0 73.0 73.0

3.67 4.85 5.51 6.16 6.81 7.44 8.07

68.8 67.4 66.6 65.8 65.0 64.2 63.4

71 136 150 163

-

158 172 172

-

73.0 73.0 73.0 73.0 73.0

8.69 9.16 10.51 11.39 20.37

62.6 62.0 60.2 59.0 45.0

172 172 172 172 172

-

I72 172 172 172 172

-

69 76

88.9 88.9

84.7 83.3 82.5 81.7 80.9 80’1 79.3

59

68

130 143 156

-

41

:::; 88.9 88.9 88.9

450 5.95 6.76 7.57 8.37 9.17 9.95

88.9 88.9 88.9 88.9 88.9

11.31 13.02 14.23 15.24 27.63

77.9 76.1 74.7 73.7 58.5

172 172 172 172 172

-

69 -

89

-

123 134

-

154 172 172 172 172

-

112

83 -

104

100 kPa -

100 kPa 90 zi: 96 41 55 69 69 69 69 69

-

El 96

2; 69 69 69 69

90 -

( Continued )

1.1

IS : 1978 - 1982 TABLE

NOMINAL

2

DIMENSIONS,

WEIGHTS AND TEST PRESSURE LINE PIPE - Contd

DESK&

OUT-

PLAIN

NATIOX

SIDE

END

SIZS

&A-

WEIGHT

WALL

THICKNESS

t

(1)

(2)

mm 90

90

90

Std

XS

100

100

Std

100

xs

100

XXS

(31

(4)

(5)

INSIDE

DIA-

METER

d

TisT

p ------Grade Yst 210 r_-h_y Stand- Alternate ard

OF PLAIN-END .PRBSSVRE,Min YSt 240 Grade #--_h-_-) Stand- Alternate ard (10)

Grade YSt 170 Standard (11)

(6)

(7)

(8)

(9)

100 kPa

100 kPa

100 kPa

100 kPa

-

60 80 91 102 114 125 137 162 -

-

182 -193 193

-

mm

k/m

mm

mm

100 kPa

101.6 101% 101.6 101.6 101.6 101.6 101.6 101.6 101.6 101.6 101.6 lo!.6

5.15 h2 7.76 8.70 9.63 10.55 11.46 13.48 13.48 1s.02 16.55 18.68

2.1 2.8 3.2 3.6 4.0 4.4 4.8 5.7 5.7 6.4 7.1 8,1

97.4 96.0 95.2 94.4 93.6 92.8 92.0 9O.2 90.2 88.8 87.4 85.4

51 68 78 88 98 108: 117 139 -_ 156 174 193

114.3 114.3 114.3 114.3 114.3 114.3 114.3 114.3 114.3

5.81 7.70 a.77 9.83 10.88 ll*!x2 12.96 13.99 15.01

2.1 2-a 3.2 3.6 4.0 4.4 4.8 5.2 5.6

110.1 108.7 107.9 107.1 106.3 105.5 1047 103.9 103.1

46 61 70 78 87 96 104 113 122

-_ -

53 71 81 91 101 111 121 132 142

-

114.3 114.3 114.3 114.3 114.3 114.3 114.3 1143

16.02 17.03 18.77 20.73 22.42 28.25 33.56 40.99

6.0 6.4 7.1 7.9 8.6 11.1 13.5 17.1

102.3 101.5 lOO*i 98.5 97.1 92.1 87.3 8O.l

130 139 154 172 187 193 193 193

-

152 162 180 193 193 193 193 193

-

1

41 55 69 83 83 117 155 69 83 83 83 117

-

( Conlinwd )

12

IS : 1978- 1982 TABLE

2

DIM&NSIONS,

DESIONATION

OUTSIDE

WEIGHTS AND TEST LINE PIPE - Cod

PLAIN

WALL

END

THICK_ NLSS

DIA. W~OHT METER WPe D

(4)

(1) mm

125 150

(5)

X%

zxs

OF PLAIN-END

INSIDE TEST PRESSURE,M~~ DIA- -_--_-----_h--______, F.&TER Grade Grad c

d

(6)

kg/m

125

125

I

PRESSURES

YSt 210 #-_h_-T Stand- Alterard nate

YSt 240 p-_*--y Stand- Altcrnate ard

Grade ’ YSt 170 Standard

(71

(8)

(9)

ilO)

(11)

IO0 kPa

100 kPa

100 kPa

100 kPa

100 kPa

141.3

7.21

2.1

137.1

37

-

43

-

-

141.3

IO.90

3.2

1349

56

-

65

-

-

141.3

13.94

4.0

133.3

70

-

82

-

-

141.3

16.16

4.8

131.7

84

-

98

-

-

141.3

18.74

5.6

130.1

98

-

115

-

-

141.3

21.92

6’6

128.1

116

-

135

-

-

1.41.3

23.50

7.1

127.1

125

-

145

-

-

141.3

25.99

7.9

125.5

139

-

162

-

-_

141.3

28.45

8.7

123.9

153

-

178

-

-

141.3

30.88

9.5

122.3

167

-

193

-

-

141.3

40.28

12’7

115.9

‘193

-

193

-

-

141.3

49.17

15’9

109.5

193

-

193

-

-

141.3

57.56

19.1

103’1

193

-

193

_-

-

168.3

a.61

2.1

164.1

31

39

36

45

168.3

11.43

2.8

162.7

41

52

48

60

-

168’3

13.03

3.2

161.9

47

59

55

69

-

168.3

1462

3’6

161.1

53

66

62

77

-

168.3

16.21

4.0

160.3

59

74

76

86

-

168.3

17.78

4.4

159.5

65

81

74

95

-

168.3

19.35

4.8

158.7

71

89

81

- 103

-

168.3

20.91

5.2

158.9

77

96

89

112

168.3

22.47

5.6

157.1

83

103

96

120

-

168.3

25.55

6.4

155.5

94

118

110

137

-

168.3

28.22

7’1

154’1

105

131

122

1.53

-

168.3

31.15

7.9

152’5

117

146

136

170

_-

168.3

3424

8.7

150.9

128

161

149

187

-

( Continued )

13

IS :1978-1982

TABLE NoMIHAL srzE

2

DIMENSIONS. —

hSIG-

RATION

PLAXN

~lA-

END

D

(2)

mm

Xs

150

150

Xxs’

200

200

X

200

Xxs

250

AND TEST PRESWRES

LiNE PIPE— Cmtd

OUmmlz 19BTER

(1)

-* WEIGHTS

~EIGHT

W$e

WALL

TESTPREWRB, Mh

INSIDE

~lA.

THmK-

METER

Nms

t

d

OE PLAIN-END

~———.———~ Grade 210 Yst r---*”--Standnatc ard

——. ——— Grade Yst 240

-— —A \tandnrd

——

—

Alter-’ nate

(4)

(5)

(6)

(7)

(8)

(9)

(lo)

mm

kg/m

mm

mm

100 kPa

~~~ kPa

I00 kPa

100 kPa

168m3 168*3 16893 168-3 16893 168*3 168~3 168*3

37*2O 42*67 48*73 54*31 59-76 67-69 70=27 79*O6

9“5 11”0 12=7 14’3 15”9 18*3 19”1 21”9

149”3 146-3 142-9 139”7 136*5 131”7 130”1 124-5

140 162 187 I93 193 193 193 193

177 193 193 193 193 193 193 193

163 189 193 193 193 193 193 193

193 193 193 193 193 193 193 193

219”1 219*1 219-1 219*1 219-1 219-1 219”1 21!?’1 ~]g’~ 219-1 219”1 21991 219’1 219-1 219-1 ~~g’~ 219-1 219’1

17”04 21 “22 25*37 29*48 33”57 36-61 41”14 42965 45*1$ 49”10 56Q94 64.64 72*22 79*67 90-62 94-20 100’84 107979

3.2 4“0 4“8 5*6 6*4 7“0

8“7 9“.5 1191 12”7 14”3 15”9 18*3 19”1 20*6 22”2

212*7 211”1 209-5 20799 206-3 205-1 203m3 202-7 20147 200”1 196*9 193”7 190=5 187*3 182-5 180-9 177”9 174”7

36 45 54 63 73 79 90 93 99 108 126 144 162 180 193 193 193 193

45 57 68 79 91 99 112 116 123 135 157 180 193 193 193 193 193 193

42 53 63 74 84 92 I04 108 115 ’125 147 168 189 193 193 193 193 193

53 66 79 92 106 115 I 30 135 144 157 183 193 193 193 193 193 193 193

273* 1 273-1 273-1 27 “] 2 A “1 273* I 27391 273ml 27391

26m54 31”76 36-94 52°09 46”57 51”03 56-72 60°50 71”72

4“0 4.8 5*6 6*4 7“1 7*8 897 9’3 11“1-

265*1 263-5 261-9 260-3 258*9 257m5 g55”7 254”5 250-9

36 44 51 58 65 71 79 85 101

45 55 64 73 81 89 99 106 126

42 51 59 68 75 83 92 98 118

53 64 74 85 94 103 115 123 147

(3)

7“9

8*2

(

14

Contirmed )

IS : 1978- 1982 TABLE

2

DIMENSIONS,

WEIGHTS AND LINE PIPE -

Nom-

DESlO-

OUTSIDIZ

PLAIN

WALL

NAL

NATION

DIA-

END

THICK-

TEST Co&f

‘INSIDE

DIA-

PRESSURES

OF PLAIN-END

TIMT PRESSURE, Min -*--__---~ #----Grade Grade 240 YSt 210 YSt ______~ r-__*‘_-_ AltcrStand-Stand- Alternate ard nate ard

METER

WEIGHT

NESS

METER

D

WPS

t

d

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

mm

k/m

mm

mm

100 kPa

100 kPa

100 kPa

100 kPa

273.1 273.1 273.1 273.1 273.1

81.55 91.26 100.85 11499 1 I:9.64

12.7 14.3 15.9 18’3 19.1

247.7 244.5 241.3 236.5 2349

116 130 145 166 174

144 163 181 193 193

134 151 168 193 193

168 189 193 193 193

250

273-l 273.1 273.1 273.1

128.27 137.36 146.32 155.15

20.6 22.2 23.8 25.4

231.9 228.7 225.5 222.3

187 193 193 I93

193 193 193 193

193 193 193 193

193 193 193 193

300

323.9 323.9 323.9 323’9 323.9 323.9 323.9 323-9 323.9

4.4 4.8 5.6

315-I 314.3 312.7 311.1 309.7 308.1 307.1 306.5 304.9 301.7 298.5 295.3 292.1 288.9 285.7 282.7 279.5 276.3 273.1 269.9 266.7

34

42 46 54 61 68

39 43 50

49 54

:;::z 323.9 323.9 323.9 323.9 323.9 323.9 323-9 323.9 323.9

34.67 37.17 43.96 50.11 55.47 61.56 65.35 67.62 73.65 85.62 97.46 109.18 120.76 132.23 143.56 i 54.08 165.17 176.13 186.97 197.68 208.27

355’6 355.6 355.6 355.6 355.6 355.6 355.6

41.52 44.93 55.11 61.02 67.74 74.42 81.08

(1)

(2)

mm

xs

300

350

xs

323.9

7”:; 7.9 ;:; 9.5 II.1 12.7 14.3 15.9 17.5 19.1 20.6 22.2 23.8 25,4 27.0 28.6 4.8 5.2 ;:; ;:; 9.5

346.0 345.2 342.8 341.4 339.8 338.2 336.6

15

:; :9 61

1;: 122 134 146 158 170 183 193 193 193

: 83 91 106 122 137 152 168 183 193 193 193 193 193 193

z:

42 45

:; Ii:

ii 2: 66

z: 69 ii

23’ 71 75 i: 1;: 128 142 156 171 184 193 193 193 193 193 :; 52 i: 71 77

K 79 88 94 97 106 124 142 160 177 193 193 193 193 193 193 193 193 49 :: 72 80 i; ( Continued )

IS : 197X - 1982 TABLE

2

DIMF.NSIONS,

i’iOMI-

Desm-

NAL

NATION

OUlSlDB DIA-

SIZE

(1)

400

450

(2)

WEIGHTS LINE PLAIN END

(3)

(4)

WALL THICX-

AND TEST PRESSURES PlIPE - Cm& INSIDLX

1)1*_

NESS

METER

t

d

(5)

(6)

TEST PRE~IURE, Min

~~~~~h_~ Grade YSt 210 A_--, r-StandAlterard nate

Imn

kg/m

mm

mm

(7) 100 kPa

355% 355.6 355.6 355% 355.6 355.6 355% 355.6 355.6 355.6 355-6 355.6

94.30 107.39 120.3G 133.19 145.91 158.49 170.18 182.52 194.74 206.83 218.79 230.63

11’1 12.7 14.3 15.9 17.5 19.1 20.6 22.2 23.8 25.4 27.0 28%

333.4 330.2 327.0 323.8 320.6 317.4 314-4 311.2 308.0 304.8 301.6 298.4

z 100 111 122 133 144 155 i66 177 189 193

406’4 406’4 406.4 406.4 406-4 406’4 406’4 406.4 406.4 406’4 4C6.4 406.4 406.4 406’4 406’4 4GG.4 406.4 406.4

47.54 51.45 55.35 63.13 69.91 77.63 85.32 92.98 1OR-20 123.30 138.27 153.11 167.83 182.42 195.98 210.33 224.55 238.64

4.8

8.7 9.5 11.1 12’7 14.3 15.9 17.5 19.1 20.G 22.2 23.8 25-4

396.8 396.0 395.2 393.6 392.2 390.6 389-O 387.4 384.2 381.0 377.8 374.6 371.4 3G8.2 ?65.2 3fZ.O 358.8 355.6

1:; 117 126 136 145 155

406.4 406.4 406.4, 406’4

“52.61 266.45 so.17 293.76

27-O 28.6 30.2 3!*3

352,4 349.2 346.0 342.8

165 175 185 193

457’0 457.0 457’0 457.0

53.57 62.34 71.12 78.77

4.8 5.6

447.4 445.8 444.2 442.8

26 30 35 39

;:‘6 6.4 ;:;

;;

OF PLAIN-END

29 32. 3”: 43 48 53

----_ ~ Grade YSt 240 ,--.~----, Alter. ‘Standard natc

(8) 100 kPa

(9) 100 KPa

97 111 125 139 153 167 180 193 193 193 193 193

1:: 116 129 142 155 168 181 193 193 193 193

37 :: 49 z 66

2::

;:

:;

10”: 121 134 146 157 170 182 193 193 193 193 193 33 38 43 48

(10) 100 kPa 113 129 145 162 178 193 193 193 193 f9”3” 193

34 37

:z

:: 51

:; 63

z: 68 ;: 102 113 125 136 147 158 169 181

:: 85 99 113 127 141 156 170 183 193 193 193

192 193 193 193

193 193 193 193

30

38 44 51 56

2: 45

’

IS : 1978- 1982 TABLE

2

DIMENSIONS,

NOMI- DzamNAl. NAllON SIZE

Cl) mm

(2)

&J'IS~DE DIAMETER

D

(3) mm 45710 457.0 457.0 457.0 457.0 457’0 457.0 457.0 457.0 457’0 457.0 457.0 457.0 457’0 457.0 457.0 457.0

500

508-O 508.0 508.0 508.0 508.0 508.0 508.0 508.0 508.0 508.0 508.0 508.0 508.0 500’0 508.0 508.0 508.0 508.0 508.0 508.0 508.0 508.0

WEIOHTS’ LINE PLAIN

END

WEIGHT WPC

(4)

kg/m 87.49 96.18

104.84

::z 156.11 172.95 189’67 206.25 221.69 238.03 254.25 270.34 286.30 302.14 317.85 333.44 69.38 79.16 87.70 97’43 107.12 116.78 136.01 155’12 17410 192.95 211.68 230.27 247.60 265’95 284’18 302.28 %P 355.83 373.43 389.8 1 407.17

AND TEST PRESSURES PIPE - Conld

WALL TIUCK-

INSIDE DIA-

NESS

METER

t

d

(‘5)

(5) mm

mm

7.9 8.7 9.5 11’1 12.7 143 15.9 17.5 19.1 20.6 22.2 23.8 25.4 27.0 28.6 30.2 31.8

441.2 439.6 438.0 434.8 431.6 428.4 425.2 422.0 418.8 415.8 412.6 409.4 406.2 403.0 399.8 396.6 393.4

5.6 6.4 7.1 7.9 8.7

496.8 495.2 493.8 492.2 490.6 489.0 485.8 482% 479.4 47G.2 473.0 469.8 466.8 463.6 460.4 457.2 454.0 450.8 447.6 44444 441.4 438.2

1;:; 12’7 14.3 15.9 17.5 19.1 20.6 22.2 23-8 25.4 27.0 28% 30.2 31.8 33.3 34.9

17

OF PLAIN-END

TEIJTPRESNJRE,Min r--__-_h____~ Grade Grade YSt 240 YSt 210 h-_, ,-_A-_, _-Stand- Alter‘StandAlter-’ nate ard nate ard (7) 100 kPa

(8) 100 kPa

(9) 100 kPa

(10) 100 kPa

43 47

54

50

d; 69

5:

5;

;;

62 69 75 8(: 100 113 126 138 151 163 176 188 i93 193 193 193 193

1:: 112 121 129 138 147 155 164 173

97 108 119 130 140 151 162 173 183 193 193 193

:: 90 101 111 121 130 140 151 161 171 181 191 193

27

34

32

;:

:: 4% 53 5%

::

::

93” 46 54 62 70 78 86 1:: 109 116 124 132 :z I55 163 171

:,” 87 1:: 117 126 136 14.5 155 165 175 185 190 190 190

5; :“; 72 81 91 100 109 117 126 135 14.5 154 163

I 72 181 190 190

40 46 2: 62 68 79 1:; 113 125 136 147 158 169 181 190 190 190 190 190 190

’

IS

: l!m - 198

-TABLE NOMNAL

2

DESIGNATION

SIZE

(1)

DIMENSIONS,

(2)

OUTMDE

END

METER

WEIGYT

PRESSURES INSIDE

WALL

THICK. NESS

D

DIAMBTBP

PV$h

L

d

(3)

(4)

(5)

(6)

k/m 559.0 559-o 559.0 559.0 559-o 559.0 559.0 559.0 559’0

559.0 559-o 559.0 559.0 559-o 559.0 559.0 559’0 559.0

559.0 559-o 559-o 559.0 559.0 5590

600

PLAIN

DIA-

nun

550

WBI~GH~”

610-O 610’0 610.0 610-O 610.0 610.0 610.0 610-O 610-O 610.0 610-O 610.0 610.0 610+0 610*0

76.42 87.21 96.63 107.36 118.06 128.73 149.97 171.09 192.08 212.95 233.68 254.30 273.51 293.87 314-l 1 334-23 354-22 374.08 393.81 413.42 431.69 451.06 470.30 489.41 95.26 105~56 117.30 129-00 140.68 163.93 i87-06 210.07 232.94 255.69 278.32 299.41 321.79 z-:5 .

mm 5.6 6.4

547.8 546.2

;:;

543.2 541.6 540-o 536.8 533.6 530.4 527.2 5240 520.7 517.8 5146 511-4 508’2 505.0 501.8 49S.6 495.4 492.4 489.2 486-O 482.8

x+8

98:; 11-l 12.7 14.3 15.9 17.5 19.1 20.6 22.2 23.8 25.4 27.0 28.6 30.2 31.8 33.3 34.9 36.5 38.1 6.4 7-l

597.2 595*8 5942 592.6 591-o 587.8 584-6 581’4 578.2 575-o 571.8 568.8 565.6 562.4 559.2

87:; 9.5 11-l 12.7 14.3 15.9 17.5 19.1 20.6 22.2 23.8 25.4

18

OF PLAIN&ND

TEST PRBMUIIE,Min ~_____h_._,__ Grade Grade Yst 210 YSt 240 r__*__$ --L-7 Stand- AlterStand- Alternate ard nate (7)

(8)

(9)

100 kPa

100 kPa

100 kPa

31

29 33 37 41

z: 32

z;

:; 42 49

:: 53 62

2:

::

::

f: 106 114 123 132 141 150 159

:; 99 106 113 120 127 134 141 :g 162 169

172 172 172 172 172

(10) 100 kPa 36 z

:;

z: 61

2:

:;

;; 91

1:: 113 124 133 144 154 164 172 172 172 172 172 172 172 172

lo”‘: 115 123 131 140 148 156 165 172 172 172 172

33

38

::

:; 52

z 57 65 :; :; 105 113 121 129

z :z 1;: 113 122 13? 141 151

IS : 197s - 1982 TABLE NowNAL

2

DIMENSIONS,

DksroNATION

SIZE

OUTSIDE DIh-

METER

D

(1) mm

650

700

(2)

(3)

WEIGHTS AND TEST LINE PIPE - Conid PLAIN END WEIGIIT

WALL

THICK NESS t

WPC

(4) kg/m

mm

610.0 610.0 610.0 610.0 610.0 610.0 610.0 610.0 610.0

388.17 410.05 43 1.80 453.42 473.57 494.95 516.20 537.33 558.32

27.0 28.G 30.2 31.8 33.3 34.9 3F.5 38.1 39.7

660.0 660.0 660.0 660.0 660.0 660.0 660.0 660.0 660-O 660.0 660.0 660.0 660.0 660.0 660.0

103.15 114.31 127’04 139.73 152.39 177.62 202.72 227.70 252’55 277.27 301.87 324.81 34916 373-39 397’49

711.0 711-o 711.0 711.0 711.0 711-o 711.0 711’0 711.0 711’0 711.0 711.0 711.0 711.0

Ill.20 173:21 136.97 164. 4 ,191.3 8 ~2118’69 245.68 272.54 299.28 ;;;:;; 377.08 403.32 429.44

__-h__ Standard

Altcrnate

(6)

(7)

(8)

(9)

(10)

mm

100 kPa

100 kPa

100 kPa

100 kPa

556’0 552.8 549% 546.4 543.4 540.2 537.0 533.8 530.6

110 116 123 129 136 142 149 155 159

137 14G 154 159 159 159 159 159 159

128 13G 143 15 1 158 159 159 159 1.59

159 159 159 159 159 159 159 159 159

30 33 37 41 45 52 GO 67 75 82 90

28 31

35 39

ii 52

‘ii

10”: 112 119

z; 104 111

7.9 8.7 9’5 Il.1 12.7 14.3 15’9 17.5 19.1 20.6 22.2 23.8 25.4

6472 645.8 644.2 642.6 641 .O 637.8 634% 631.4 628.2 625.0 621.8 618.8 615.6 612.4 609.2

6.4 7.1 7.9 9.5 :1.1 12.7 14.3 15.9 17.5 19’1’ 20% 22.2 ‘23.8 25’4

698.2 696.8 695.2 692-O 688.8 G85.G 682.4 679.2 676.0 672.8 669.8 666.6 663’4 660.2

;:;1

OF PLAIN-END

TEST PRESSURE,Min INSIDE DIA- ~~~~_~~~h~~~~~_~ METER Grade Grade YSt YSt 240 210 d

,-----h---7 .Stand- Altcrnatc ard

(5)

mm

PRESSURES

z; zi 3F 42 48 54 60 6f 72 8748 90 96

321” 3;’ z: iii 7G 83 90 97 104 111

4: 63 70 ;:

iz :: 87 1;: 113 122 130 138 33 :“o 48 56 65 if :; 105 113 121 129

( Continued )

19

IS : 1978- 1982 ,TABLE NomNAL

2

DiMENSIONS,

DEIIO- OUTSIDE DIA-

NATION

METER

SIZE

D

(1)

750

800

850

(2)

(3)

WEIGHTS AND TEST PRESSURES LINE PIPE - Conhi PLAlN END

WElOHT

WJC

(4)

WALL TnmcNESS

INSIDE DIAMETER

d

t

(51

(7)

(8)

(9)

(101

100 kPa

100 kPa

100 kPa

100 kPa

ii 26

3

24 27

30

39

::

2; 58 65 71 78 84 90 97 103 110 117 !23 130

2 54

mm

mm

762.0 762.0 162.0 762.0 762.0 762.0 762.0 762.0 762.0 762.0 762.0 762.0 762.0 762.0 762.0 762.0 762.0 762.0

119.25 132.17 14691 176.29 205.54 234.67 263.67 292.54 321.29 349.9 1 376.63 405.00 433.26 461.38 489.38 517.25 544.99 572’61

6.4 7.1 7.9

749.2 747.8 746.2 743.0 739.8 736.6 733.4 730.2 727.0 723.8 720.8 717.6 714.4 711.2 708.0 704.8 701.6 698.4

813.0 813.0 813.0 813.0 813.0 813.0 813.0 813.0 813.0 813.0 813.0 813.0 813.0 813.0 813.0 813.0 813.0 813’0

127.30 141.10 156.84 188.24 219.50 250.64 281.65 312.54 343.30 373.93 402.54 432.93 463.19 493.32 523.33 553.22 682.98 612’61

7.9 9.5 11.1 12.7 14.3 15.9 17.5 19’1 20.6 22.2 23.8 254 27.0 28.6 30.2 31.8

800.2 798.8 797.2 7940 790.8 787.6 784.4 781.2 778.0 77*8 771.8 768.6 765.4 762.2 759’0 755.8 752.6 749.4

864.0 8640

135.35 150.03

6.4 7.1

851.2 8498

;::

TEST PREESU~~, Min *-v-Grade Grade ’ Yst 210 YSt 24Q __*_._y --Stand- Alter-. -Stand- Alter-’ ard natc ard nate r-----

(6)

kg/m

1Z 12.7 14.3 15’9 17.5 19.1 20.6 22.2 23.8 25.4 27.0 28.6 30.2 31.8

OF PLAIN-END

3”: t: :; 62 67 :‘8 ii 93 98 104

:: ;z :z 96 102 109 115 121 ;z 28 :z 45 z: 62 68 :i

23 26

i:: 45 53 60 68 75 83 :; 105 113 120 128 136 143 151 28 32 35 42 49 25 71 ii

iz 96 102 107 113

;5 106 113 120 127 134 141

21 24

27 30 ( Conrinurd )

20

Is : 1978- 1982 TABLE NOMI-

2

DIMENSIONS,

DSBIG- OUTSIDE DIA-

NATlON

METER

D

(1) mm

900

950

(2)

(3)

WEIGHTS AND TEST PRESSURES LINE PIPE - Contd

END

WALL THICK_

%IGHT

NESS

PLAIN

WPe

(4j

mm

kg/m

8640

864.0 8640 864-O 8640 864.0 864.0 864.0 864.0 864.0 864.0 864.0 8640 8640 8640 864.0

166.78 200.18 233.46 266.61 299.64 332.53 365.31 397.95 428.44 460.85 493.12 525.27 557.29 589.19 620.96 652.60

,914.o 9140 9140 914.0 914-o 914.0 9140 914.0 914.0 914-O 914.0 914.0 9140 9140 914.0 9140 9140 914-o

143.24 158.79 176.52 211.90 247.15 282.27 317.27 352’14 386.88 421.50 453.84 488.22 522.47 556.59 590.58 62445 658.19 691.81

965-O 965.0 965-O 965-O

186.46 205-l 7 223.84 242.49

t

(5) mm ;:; 11.1 12.7 14.3 15.9 17.5 19.1 20.6 22.2 23.8 25.4 27.0 2&6 30.2 31.8 7:: i;:; 11.1 12.7 14.3 15.9 17.5 19.1 ;x:: 23.f’ 25.4 27.0 28.6 30.2 31.8 7,3 a.7

OF PLAIN-END

INsIDE D‘A_

TEST p-----wA-.--a.-,

METER

Grade YSt 210 ,--1-y handAlter- nate ard

d

(6) m

z:; 879.0 875.8 872.8 869’6 866.4 863-Z 860.0 856.8 853.6 850.4 949.2 947.6 946.0 944.4

Min

Grade YSt 240 #--AStandAlternatc ard

(7)

(a)

(9)

(10)

100 kPa

100 kPa

100 kPa

100 kPa

26 32 37 43 48 53

33 40

:: 69

:; a6

;; 85 90 96 101 106

1:: 106 113 120 126 133

848.“I! 845.0 841.8 838.6 835.4 832.2 829.0 825.8 822-a 819.6 816.4 813.2 810.0 806.8 803% 800.4 901.2 899.8 898.2 895.0 891.8 888’6

PREWIRE,

’

;: z;

25

:9’

if

;;

:: 50 57

is 39 43 48 52 56 60 65 69 73

z: ;: 88 1; 107 113 119 126

z 86 20

25

;: 27

‘3: 33

24 26 ::

( Continued)

6

IS:1978-1981 TfiIZ

2 D-SIONS,

NOM- DMIQ- OU~IDE NAL SIZE

NATION

DJAYETER D

PRESSURES OF PLAIN-END

WIUGs;Ah&DIEt; PLAIN

END WEICRT

WALL THICX-

INSID=

DlAHETER

NE88

d

t

T-T Passwar, Min r___---_~ Grade Grade 210 YSt YSt 24a Alternate

(1) mm

(2)

(3) mm 965.0 965’0 965'0

2% 965.0 965'0

EX 965-O

965.0 965-O 965.0 965.0 965.0

(4)

(51

(9)

(10)

100 kPa

100 kPa

mm

mm

261.11 279.69 298.24 335.25 372’14 408’89 445.52 479.75 516.14 552’40 588.53

11.1 11.9 12’7 14.3 15.9 17.5 19’1 20’6 22.2 23.8 25.4 27.0 28.6 30.2 31.8

942.8 941.2 939.6 936.4 933.2 930.0 926.8 923.8 920.6 917.4 9142 911.0 907.8 904.6 901.4

196.39 216.11

;:;

: %?8 1016.0 1016.0 1 016.0 1016.0 1016*0

E::: 275.07 294.66 314.22 353.24 392.13 430.90 469.55

1z.i; 11-l 11.9 12.7 14.3 15.9 17.5 19.1

1 000*2 998.6 997.0 995.4 993.0 992.2 990.6 987.4 984.2 981.0 977.8

1000

1 016.0 1 016.0 1 016.0 1 016.0 1 016.0 1 016.0 1016.0 1 016.0

505’66 544’06 582’33 620’48 658’50 696.39 734.16 771’80

20.6 22.2 23.8 25.4 27.0 28-6 30.2 31.8

974.8 971.6 968.4 965.2 962.0 958.8 955.6 952.4

1050

1 067.0 1 067.0 1 067.0

227.05 247.74 268’40

87

1 000

1016*0 : Xff:i 1016*0

lo”.:

Alternate

(6)

kg/m

EE 696.18 731.80

-Standard

1 049.6 1 048.0 1 046.4

zi 41 46 51

:i 48 54 60 66

SE 66

:‘7

::

E

:: 92

101 107 113 119

1:: 24

3; 34 37 39 42 45 51 57 62 68

;: :: 36 39 z 53 58

73 79 85 90 96 102 107 113 25

24

3”:

2”:

29 32 35

( Continued )

22

J

IS:1978-1981 TABLE 2 DMENSIONS, Nom-

Dmno-

Ommx

NIL

UATXON

DIA.-

WZIGH’I&/..FA..F TESES~dPRESSURES OFPLAIN-END PLAIN END

WALL

INSIDE

t

mm

(2)

(41

(3) mm

kg/m

1067'0 1067.0 1 067'0 1067-O 1067'0 1067-O

%~~ 330.19 371.22 412.13 452.91

: i:::: z::: 1067.0 1067.0

1067.0

571.98 612’26 652.42

1067.0 1 067'0 %E 1067.0 772.14 1067.0 811.79 1100

1 150

1118.0 1118.0 1 llS.0 111&O 1 II&O 111&O 111&O 111~0 111&O 1118’a 111&O 111&O 111&O 111&O 111&O 111&O 1118.0 1 118.0 1 16&O 116S.o 1 16&O 1 16&O 1 16&O

237.39 25969 281.35 302.99 Et . 38921 :;z; z::::; 59990 %% 726.41 76S.33 810.12 851.79 246.72 ;iKz. 316.67 33926

d

(5)

(6)

mm

mm

11.1 11.9 12.7 14.3 15.9 17.5 19.1 20.6 22.2 23.8 25.4 27.0 28.6 30.2 31.8

1044.8 1 043.2 1 041.6 1048.4 1 035.2 1 032.0 1 028.8 1 025.8 1 022.6 1 019.4 1016.2 1013’0 1 009.8 1 006.6 1 003.4

8.7 9.5 10.3 11’1 11.9 12.7 14.3 15.9 17.5 19.1 20.6 22.2 23.8 25.4 27.0 2S.6 30.2 31.8

1100.6 1 0990 ; Og.8’ 1094.2 1 092’4 1 089.4 1 086.2 1083.0 1 079.8 1076.8 1 073.6 1070.4 1067.2 1064.0 1 060.8 1057.6 10544

&7 9.5 10.3 11.1 11.9

1 150.6 1 149’0 1 147’4 1 145.8 1 144.2

.

23

PmuSu~~,

.------7 . Grade 210 YSt #-A---b Stand- Alter-

METER

NF.gs

(1)

TEST

THICK- DIA-

*

Min

Grade Yst 240 F--hStand- Altern8te

_

IS:1978-1982 TABLE NomXAL

2

DIMENSIONS,

WEIGHTS AND TEST PRESSURES LrmE PIPE - Conld

DanaOIJTSIDE PLAIN NATION DIAEND

SIZE

XSTSR

WElGkIT

D

WP

WALL TmcrNESS

t

TEST PRESSURE,Min INSIDE r-__--._~h.-_-~ DIAMETER Grade Grade 210 d YSt Yst 240

---A &and. ard

(1)

(2)

(3)

(4)

(5)

(6)

(7) 100

mm

1 200

1 LOO

mm

kg/m

1 168.0 1 168-O 1 168,O 1 16&O 1 168’0 1 168’0 1 168’0 1 168*0 1 168-O 1 168,O 1 168.0 1 168’0 1 168.0

361.82 406.84 451.73 496.50

mm

OF PLAtN-END

mm

kPa

1 142.6 1 139.4 1 136.2 1 133.0 1 129.8 1 126.8 1 123% i 120.4 1 117.2 1 114.0 1 110.8 1 107% 1 1048

27 30

~~:‘~” 627’2: 671.54 715.68 759’70 803.59 847-36 890.99

12.7 143 15.9 17.5 !9.1 20.6 22.2 23.8 25.4 27.0 28.6 30.2 31;s

1219% 1219.0 1219’0 1219’0 1219.0 1 219’0 121’9.0 1219’0 1 219’0 1219’0 1219’0 1219’0 1219.0 1219’0 1219.0 1219.0 1219’0 1219.0

259.66 283.35 307.01 330.63 354.23 377.79 424.82 471.73 518.51 565.16 608.78 655.19 701.47 747.63 793.66 839.56 885.34 93099

8.7 9.5 10.3 11-l 11.9 12’7 14.3 15’9 17.5 19.1 20% 22.2 23.8 25.4 27.0 28% 30.2 31.8

1201% 1 200.0 1 198.4 1 196.8 1 195.2 1 193.6 1 190.4 1 187.2 1 185.0 1 180.8 1 177% 1 174.6 1 171.4 1 168.2 1 165fl 1 161.8 1 158.6 1 155.4

18

1321.0 1321.0 1321’0 1321.0 1321.0 1321.0 1321.0

358.55 384.. 16 409.74 460.79 Al.72 562.53 G13.20

11.1 11.9 12.7 14..3 15’9 17.5 19’1

1 298.8 1 297.2 1 29.5% 1 292.4 1 289.2 1 286.0 1 282.8

:“; ::. 47 51 54. 57 Gl 64 68

f? 23 24 26 29 32

--7

#-___A--_~

Alternate

Standard

Alternate

(8)

(9)

(10)

100 kPa

100 kPa

100 kPa

34

31

:: 47 51 55 59 6’ 68 72 76 80 85

is 43 47 51 55 59 63 67 71 75 79

22 24 26 28 30 32 36 40 r

21 23 24 26

z: 42 45 48 52 55

?I 52 57 61 65 G9

2: ti5

5; 81 26 28 30 34 37 41 45

26 28

z: :8” 42 45 5:

66

z”o 64 68 72 75

::

24 2G 28 2: :;

:: 90 94 :: 35 39

2 52

( Continued)

I

L

I b c

IS : 1978-M82 TABLE 2 Now-

DIMENSIONS,

Dmto-

NAt. NATION

SUB

(1)

ODyAmg

YBTRB

PIAN END

(2)

WAN. INSIDE THICKNESS

D

DIA-

YBTER

t

d

(5)

(6)

(3)

(4)

k/m

mm

mm

1 321.0 1321.0 1321.0 1321.0

66OfiO 711.03 761.34 811.52 861.57 91 l-50 961.30 1 010.98

20.6 22’2 23.8 25.4 27.0 28.6 30.2 31.8

1 279.8 1 276.6 1 273.4 1270.2 1 267.0 1 263.8 1 260.6 1 257.4

386.20 413.80 441.37 49641 55 -32 -11 i 660.77 711.91 766.32 820.61 87478 928.82 982.73 1036.52 1090.18

11.1 11.9 12.7 14.3 15.9 17.5 191 20.6 22.2 23.8 25.4 27.0 28.6 30.2 31.8

1 399.8 1 398.2 1 396.6 1 393.4 1 390.2 1 387.0 1383.8 1 380.8 1 377.6 1 374.4 1371.2 1 368.0 1 364.8 1 361.6 1 358.4

473-31 532-38 591.32 650.13 708-82 763.72 822.16 88048 938.67 996.73 1 OH-67 111246 I 170.17

12.7 143 15.9 17.5 191 20.6 22.2 23.8 25.4 27.0 28.6 30.2 31.8

1 498.6 1495.4 1 492.2 I 489.0 1485.8 1482.8 1 4796 1 476-4 1 473.2 1 470.0 1466.8 I 463.6 1460.4

: E 1321.0 1321.0 1400

WEIGHTS AND TEST PRESSWRES DE’ PLAIN-END LINE PIPE - conki

1 422.0 1 422.0 1 422.0 1 422.0 1 422.0 : :;z : :;E : :z: 1 422’0 1 422-O 1 422.0 1 422-O 15240 15240 15240 15240 1524.0 1524-o : EX 1524-O 1524-O 1524.0 1 524.0 1524-O

25

T-7 Y-*F Gde YSt A-

PRUSUIIE,&I

210

’

Grade YSt 240 --A---, ‘Stand-

IS : 1978 - 1982 TABLE NowNAL

2

DIMENSIONS,

DastoNATION

SZZB

hTSID&

W’EXIHTGHT~~ PLAIN

THICK-

METER

NRSS

D

(1)

(2)

WALL

DIA-

(3)

mm

mm

1600

16260 1 626.0 1626.0 I 626.0 1 626.0 1626.0 1 626.0 1 626.0 1626.0 1 626.0 1 626-O 1 626.0 1 626.0

t

(4)

(5)

-

TESW&PhJWRES

OF PLAIN-END

TEST PRESWRE,M&I DIA- ___h---7 Grade METER Grade d YSt 210 YSt 240 a e-7 Stand- AlterStandAlternate ard ah nate INSIDR

(6)

kg/m

mm

mm

505.26 568.35 631.31 69415 756.86 815.54 87*00 940.34 1 002.56 1 06465 1 126.61 1 188’44 1250.15

12.7 14.3 15.9 17-5 191 20.6 22.2 23.8 25.4 27.0 28.6 30.2 31.8

1 600.6 i 597.4 15942 1 591.0 1 587.8 1 584.8 1 581.6 1 578.4 1 575.2 1 572’0 1 568.8 1 565.6 1 562.4

(7)

(81

(9)

E

100 kPa

100 kPa

19 22 24 27 29 31 34 36 39 41 44 46 49

24 27 30 33 36 39 42 45 49 52 55 58 61

23 25 28 31 34 37 39 42 45 48 51 54 57

(101 l% 28 32 35 39 42 46 49 53 56 60 64 6; 71

7.3 Length - Unless otherwise agreed upon between the purcbaser and the manufacturer, pipe shall be furnished in single random or double randQm lengths as specified by the purchaser. The lengths shall be within the tolerances speciffed in clause 7.5.4. When the pipe is furnished with threads and couplings the length shall be measured to the outer face of the couplings. The length of threaded and coupled pipe may be determined without the couplings screwed on provided proper allowance is made for the length of the couplings. 7 A Diameter - For threaded pipe, the outside diameter at the threaded ends shall be such that the thread length Lt and the number of full-crest threads in that length are within the dimensions and tolerances specified in IS : 3333 ( Part l )-1967* ( Inside diameters are governed by the outside diameter and weight tolerances ). 7.5 Tolerances - The tolerances ou outside diameter, wall thickness, weight and length shall conform tq the requirements specified in 7.5.1,7.5.2, 7.5.3 and 7.5.4 respectively. Wiiensions

for petroleum industry pipe threads: Part

1

Line pipe threads.

IS : 1978- 1982 7.5.1.Outside

Diameter

-

The outside diameter tolerances shall be as

follows. 7.5.1.1 Pipe body Tolerance

For Size 48.3 and less

+ 0.40 mm - O-80 mm f 1 percent m3 and above For pipes of 114.3 mm outside diameter and larger, the outside diameter measurements on the body of the pipe shall be made at the mill with a diameter tape or an outside micrometer whichever is feasible on a random basis, but not less than three measurements per working shift. 7.5.I.2 Pipe ends - Plain end pipe 273 mm outside diameter and smaller, shall not be more than 0.40 mm smaller than the specified outside diameter for a distance of 100 mm from the end of the pipe and shall permit the passage over the ends, for a distance of 100 mm of a ring gauge which has a bore 1.6 mm larger than the specified outside diameter of the pipe. Seamless plain end pipes of 323.8 mm outside diameter and larger shall be not more than 0.80 mm smaller than the specified outside diameter for a distance of 100 mm from the end ofrhe pipe. They shall permit passage of a ring gauge which has a bore of 24 mm larger than the specified outsidk diameter of the pipe over the ends for a distance of 100 mm. At the option of the manufacturer the minimum outside diameter of pipe in sizes 508.0 mm outside diameter and smaller may be measured with a diameter tape. By agreement between the manufacturer and the purchaser the tolerance on outside diameter at the ends may be applied to the inside diameter at the ends. For pipe sizes of 559 mm and larger, and for a distance of 100 mm from the ends of the pipe, the maximum outside diameter shall not be more than I percent larger than specified and the minimum outside diameter shall not be more than 1 percent smaller than specified. 7.5.2 Wall Thickness - The tolerances on the wall thickness of line pipes shall be as follows : For

Trpe

Seamless and welded pipes

Tolerance, percent

73.00 mm and smaller 88.9 mm OD

Seamless pipes

101.6 mm OD and larger

Welded pipes

101.6 mm OD to 457.2 mm OD inclusive 5&O mm OD and above

+ + -

20.0 12.5 18.0 125

+_ ;;*;. + 15.0 - 12.5 + 1?5 - IO.0

7.5.3 Weight - The following weight tolerances apply to the calculated .. weights for threaded and coupled pipes and to the specified’ weights for plain end pipes. Single Length Standard weight, regular weight, extra strong and double extra strong pipe : + l@O percent Grade YSt 210 and YSt 240 3.5 percent + 10.0 percent Grade YSt 170 - 50 percent + l@O percent Special plain end pipes - All Grades 5.0 percent Carload lots ( for Mn of 18 000 kg ) : - 1.75 percent Grade YSt 210 & YSt 240 25 percent Grade YSt 170 t of NOTB -When the minus tolerance on wall thicknen L ks than 12) per the specified wall thickness, the maximum wall thickncas shall provide a to $ wall thickness range of 2P5 perrent of the rpecificd wall tbickncas and the maximum weight rhall be equal to 22.5 percent ininua the under-thickness tokancc. 7.5.4 The tolerance of the length of line pipes shall be as follows : Shortest Length M&rum Average TypeofPW in Entire Ly$hi&ktire Shipnrent 77ueadbd and Coupled : Single random length Double random length Rain End Pipes : Single random length Double random length &F&y 8.

-

By agreement between to each car 104.

the purchcr

PIPE ENDS, WORKMANSHIP

m 4.9 67

m 5.5 10.7

2.7 43

5.3 10.7

and the mamkcttuer,

these tolerances

AND FINISH

8.1 pipe Puds - Pipes shall be supplied with threaded or plain end as given in Tables I and 2. Extra strong line pipes shall be furnished with plain ends, except that the ends shall + threaded and coupled if so q&irp;;y UC= zfdee The inside and outside edges of the ends of . & 28

IS :1978-1982’ 8.1.1 Threaded ends shall ‘conform to the requirements specifiad in IS : 3333 (Part 1 )-1967*. One end of each length of threaded pipe shall be provided with a coupling conforming to the requirements given in 9 and the other end with thread protector. Couplings .shall be screwed on to the pipe handtight ( they may be applied powertight if so specified on purchase order ). A suitable thread compound shall be applied to cover the full surface of either coupling or pipe engaged before making up the joint. All exposed threads shall be coated with such suitable thread compound unless otherwise specified on the purchase order.

8.1.2 Unless specified otherwise, plain end pipes of sizes 60.3 mm outside diameter and more shall be furnished with the ends bevelled to an angle of 30 -$z measured from a line drawn perpendicular to the axis of the pipe end with a root face of 1.6 f O-8 mm. The end finish for pipes less than 60.3 mm outside diameter shall be as specified by the purchaser. The pipe ends shall have all burrs removed from both the inside and outside edges. For seamless pipes’ where internal machining is required to maintain the root face tolerance, the angle of the internal taper, measured from the longitudinal axis, shall be no longer than that listed below : Max Angle of Taper &g

Specified Wall Thickness

7 9-s 11 I4

Less than IO-6 10.6 to 14.1 More than 14-l to 16.9 .Over 16.9 mm

For the removal of an internal burr on welded pipe larger than 114-3 mm outside diameter, the internal taper, measured from the longitudinal axis, shall not be larger than 7 degrees. 8.2 When so specified on the purchase order, pipes shall be furnished with ends suitable for use with dresser victaulic or other special couplings. Such pipes shall be sufficiently free from indentations, projections or roll marks for a distance of 200 mm from the end of the pipe to permit a proper make-up of coupling. 8.3 U less specified otherwise, pipes shall be given a mill-coating to pro; tect it 9 rom rustingin transit. 8.3.1 If so required by the purchaser, pipes shall be furnished bare or specially coated. In the case of special coatings, the purchaser should specify whether the coating is to be applied to the full length or whether a *Dimensions for petroleum industry pipe threads : Part 1 -Line pipe threads.

29

Is : 1978-1982 certain specified length from the end is to be left uncoated. Unless specified otherwise, such bare ends are commonly given a coating with oil for protection in transit. 8.4 Workmanship - Imperfections of the following types shall be considered poor workmanship and pipes containing such imperfections shall be rejected. The manufacturer shall take all reasonable precautions to minimize reoccurring damage to the pipe :

4

Dents - The pipe wall shall contain no dents deeper than 6.3 mm measured as the gap between the lowest point of the dent and a prolongation of the original contour of the pipe. The length of the dent in any direction shall not exceed one half the pipe diameter. All cold-formed dents deeper than .3 mm with a sharp bottom gauge shall be considered injurious. The gauge may be removed by grinding;

b)

Q@et of Plate Edges - The radial offset ( misalignment ) of plate edges in the weld seams shall not be greater than 1.6 mm for submerged arc welded pipe. For electric-welded pipe the radial offset of plate edges plus flash trim shall not be greater than 1.5 mm; Misalignment

c$_ Weld Seam in S&merged

Arc Welded

Pipe -

Misalignment of the weld seam ( off-seam weld ) shall not be a cause for rejection provided complete penetration and complete fusion have been achieved as indicated by non-destructive examination;

d) Height of Outside Weld Bead - The outside weld bead shall not extend above the prolongation of the original surface of the pipe more than the amount listed below : Maximum Height of Weld Bead,

Wall Thickness,

mm

mm 3.0 4.5

12.70 and under

Over 12.70

Outside weld beads which are higher than permitted by the requirements of this clause may be ground to acceptable limits at the option of the manufacturer;

e) Height of Inside Weld Bead - The inside weld bead ( flash ) of

electric welded pipe shall not extend above the prolongation of the original inside surface of the pipe by more tban 1.5 mm; and 30

MM&nun Depth of

WatrI%&&se~ (t); a 3-8 and less

Ttim, mm

O-10 t

3.9 to 7-5

o-4 mm

7-6andRnac

0.05 t

Depth of groove is &&red as tho difference between the wall tm m approximate 25 mm from the weld line and

tkrcmainingwalfimdcrthegroove.

When suhcc conditioning by grinding is performed, it shall be done in a workmanlike manner.

Grind& -

Hard spots - The snrface of welded pipe in sixes 508 mm outside diameter shall. be examined visuaRy to detect irregularities in the curvatnre of the pipe. When this examination fails tc disclose mechanical damage as the canse of an irregular surface, but instead indicatea that the irregnlar surface may be attributed to a bard spot, the hardness of the area in question shall be determined. If the hardness is 35 Rockwell C ( 327 Brine11 ) or harder and the dimension of the hardened area is greater than 50 mm in any direction, the section of the pipe containing the hard spot shall be removed as a cylinder. 8.5 visaal h@ect&D -

All finished pipes shall be visually examined and shall be free of injurious defects as defined in 8.6 ( see 8.7 and 8.8 for repair of injnrious defects ). 8.6 Injnrioua Defects -

Injurious defects shall constitute the following :

a) Cracks and Leaks - All cracks, sweats and leaks. W Laminations - Extending into the face or bevel of the pipe and having a transverse dimension exceeding 6.3 mm. Pipes containing these shall be cut back until all lamination is removed.

Arc burns, defined as localized points of surface melting caused by arcing between electrode or ground and pipe surface, shall be considered defects.

c) Arc Bums-

Nora - Contact marks, defined as intermittent marks ad’accnctnz weld line, resulting from the electrical contact between tiL supplying the welding current and the pipe surface, are not dcfect8.

31

Is :

1978- 1982 Pipe containing arc burns shall oe given one of the following dispositions : 1) Arc burns may be removed by grinding, chipping or machining. The resulting cavity shall be thoroughly cleaned and checked for complete removal of damaged material by etching with a 10 percent solution of ammonium per sulphate or a 5 percent solution of nital. If removal of damaged material is complete : i) The cavity may be merged smoothly into the original contour of the pipe by grinding, provided the remaining wall thickness is within specified limits, or ii) The cavity may be repaired by welding as follows : - The minimum length of repair weld shall be 50 mm. - The repair weld shall be made either by manual or semi-automatic submerged arc welding, inert-gas metalarc welding, or manual metal-arc welding using low hydrogen electrodes. The metal temperature in the area to be repaired shall be a minimum of 10°C. The welding procedure and performance shall be qualified in accordance with Appendix B. - The repair weld shall be ground’to merge smoothly into the original contour of the pipe. - Repair welds shall be inspected by the magnetic particle method in accordance with 12.19, 12.29 and 12.21 or by liquid penetrant, or by agreement between the purchaser and the manufacturer, other NDT methods may be used. - The repaired pipe shall be hydrostatically tested after repairing in accordance with 11.5.

2) The section of pipe containing the arc burn may be cut off within the limits of requirements on length.

3) &ejected. Other Defects - Imperfections having depth greater than 12.5 peicent of the specified wall thickness, measured from the surface of the pipe. Pipes containing such injurious defects may be repaired by one of the following methods : 1) By grinding provided the remaining wall thickness is within the specified limits. 2) In accordance with 8.7 and 8.8. 32

IS : 1978 - 1982

3) By cutting off a portion of the pipe containing the defect, such that the remaining length is within the tolerance specified. . Pipes . which cannot be repaired as mentioned above shall be rejected. e) Undercuts - Undercutting on submerged-arc welding pipe is the reduction in thickness of the pipe wall adjacent to the weld where it is fused to the surface of the pipe. Undercutting ma.y best bc located and measured visually. Minor undercutting defined below on either the inside or the outside of the pipe is permissible without repair or grinding. 1) Maximum depth of 0.8 mm with a maximum length of onehalf the wall thickness and not more than two such undercuts in any 0.30 m of the weld length. 2) Maximum depth of 0.4 mm, any length. Undercuts longer than onehalf the wall thickness and @4 to O-8 mm in depth, but not exceeding 125 percent of the specified wall thickness, shall be removed by grinding. Undercuts more in depth than 0.8 mm shall be considered injurious. 8.7 Repair of Injurious Defects - are detailed below: a) Seatnlek Pipe and Parent Metal of Welded Pipe - The repair of injurious defects in seamless pipe and parent metal of welded pipe is permissible except when the depth of ,defect exceeds one-third of the specified wall thickness of the pipe and the length of tha. portion of the defect, in which the depth exceeds 12.5 percent. is more than 25 percent of the specified outside diameter of the pi,pe, or when more than one repair is required in any length equivalent to ten times the specified outside diameter of the pipe. Repairs shall be made in accordance with 8.9. 4 Weld Seam of Welded Pipe - Injurious defects in the weld seam of all welded pipes except electric-resistance welded pipes and induction welded pipes may be repaired at the discretion of the manufaturer in accordance with 8.8. The weld seam of electricresistance-welded pipes and induction welded pipes may be repaired only by agreement between the purchaser and the manufacturer. Electric resistance weld and induction weld seam repairs shall be in accordance with 8.9. C) Heat-trecrted Pipe -When heat-treated pipe has been repaired by welding, the subsequent reheat-treatment shall be agreed between the manufacture and the purchaser. based on the effect of the repair on the structure and properties of heat-treated pipe. 8.8 Procedore for Repair of Injurious Defects in Other than ERW and Iadaction Welded Pipe Seam -The repair procedure for defects shall 33

conform to the following requirements. Conformance of purchaser’s representative where the orientation the repair, weld shall be placed in the circgmferential a) ‘TEaz;iec’ shall be completely removed and

is subject ‘to approval of the defects permits direction: the cavity thoroughly

b) The rebair weld shall be made either by manual or semiautomatic submerged-arc welding, inert gas welding or manual or semi-automatic metal arc welding using coated electrodes, and the welding procedures and performance shall be qualified .in accordance with Appendix B or the repair weld shall be made by automatic submerged arc welding; and 0) Each length of repaired pipe shall be tested hydrostatically in accordance with 11.5.

8.9 poetdare for Repair of Weld Seams of ERW and Induction Welded Pipe - The repair procedure shall conform to the following requirements an&shall include&e weld zone which is defined for .the purpose of repair as 12.7 mm on either side of the fusion line. Conformance to the repair procedure is subject to approval of the purchaser’s representative: 4 The weld zone defect sha?l be removed completely by chipping and/or grinding and the resultant cavity shall be thoroughly cleaned ; W The minimum length of repair weld shall be 50% mm and individual wdd repairs should be separated by at least 3 m: The repair weld shall be made either by manual or semi-automatic cl submerged arc-welding, inert gas metal arc welding or manual metal arc-welding using low hydrogen electrodes. The metal temperature in the area to be repaired shall be a minimum of 10°C. The .welding procedure and performance shall be qualified in accordance with Appendix B; When a repair weld is made through the full thickness, it shall 4 inc!ude weld passes made from both the outside diameter and the internal diameter of the pipe. The starts and slops of outside diameter and internal diame:er repair welds shall not coincide; e) The repair weld shall be ground to merge smoothly into the original contour of the pipes; and shall have a maximum crown of 1.5 mm; Repair welds shall be inspected by any of the NDT methods in 0 accordance with 12. The choice of these non-destructive testing methods shall be at the option of the manufacturer; and ihall be hydrostatically tested after repair in accor8) zwt$ . .

34

IS: 1978-198a 9. COUPLINGS 9.1 Cooplii - Couplings for grades YSt 210 and 240 pipes shall be seamless and shall be ma& of a grade of material at least equal in physical properties to that of the pipe. Couplings for grade Yst 170 pipe shall be seamless or welded, and shall be made of St&l. By agreement between the purchaser and the manufacturer, welded couplings may be supplied on pipe 3556 mm and larger, if the couplings are properly marked. 9.1 Couplings shall conform to the dimensions and tolerances Table 3 read with Fig. 1. NOTE -

Couplings covered by Table 3 arc applicable

TABLE

3

extra rtmog pipe.

NOXINAL SIZS

COUPLING

mITsIDr DIAMETSII

DIMENSIONS,

WEIGHIS

LENGTH

to ather

A#D

shown in

standard weight or

TOLERANCES

WIDTH

CALCULATED

zwo

COU?LINO

NL

Bn FACE

cot?+3

Q

WEIOHT

6

(6)

(1)

(2)

(3)

(4)

mm

mm

mm

mm

h3

14.3 l&3 .22*2 27.0 33.4 40.0 52.2 539 73.0

27.0 41’3 41.3 54.0 540 667 69 8 69.8 73.0 104.8 108.0 111.1 114.3 117.5 123.8 133.4

11.9 15.3 18.8 22.9 28.3 35.0 43.8 49.9 62.7 75.4 91.3 104.0 116.7 143.7 170.7 221.5 275 4 326.2 3580 408.8 459.6 510.4

@02 0’04

6 8 :“5 is 32 40 50 :; 1:: 125 150 200 250 300 350 400 450 500

D D D D

1E 117.5 132.1 159.9 1877 244.5 298.4 3556 381.0 431.8 482% 533.4

E

f 161.9 171.4 181.0 193.7

TO~CC~DCC on outside diameter W f

1 percent.

35

I.6 1.6

g:.P7 0.15 0.25 0.47 0.41 0.84 1.48 1.86 2’69 3.45 z,: :::“9’: 22.37 20.81 25 35 3020 3&OS

1s: 1978 - 1982

ir

>. BASIC

POWER

TIGHT

HAND

TIGHT

MAKE-UP

ow

MAKE-UP

All dimcns,ions in millimetres. FIG.

,

1

LINE

PIPE AND

COUPLING

9.3 Threading- Coupling threads shall conform to the requirements given in IS : 3333 ( Part 1 )-1967*. Couplings shall not be expanded to provide the required taper for threads.

9.4’ Couplings shall be free from blisters, pits, cinder marks and any other injurious defects which would impair the efficiency of the coupling or break the continuity of the thread. 9.5 A tensile test shall be made on each heat of steel from which couplings are produced and the coupling manufacturer shall maintain a record of such tests. This record shall be open to inspection by the purchaser. At the option of the manufacturer, tensile test may be made on the finished couplings. 10. JOINTERS lOi1 Unless specified otherwise, jointers

(two pieces coupled or welded together to make a standard length ) may be furnished to a maximum of 5 percent of the order, but no length used in making a jointer shall be less tban 1.5 m. Welded jointers shall comply with the requirements of Appendix C. 11. PHYSICAL TF’STS 11.1 Pipes manufactured according to this .specification shall conform to the physical requirements specified in Table 4.

11.1.1 Longitudinal Tensile Tests - The longitudinal tensile tests shall be performed for determining the tensile properties on seamless and buttwelded pipes in all sizes and for electric welded pipe 16S.3 mm OD and smaller. *Dimensions

for petroleum

industry pipe threads 36

: Part I I.ine pipe threads.

IS : 1978- 1982 TABLE

4 PHYSICAL

PROPERTIES

( Claucc 11.1 ) GRADEOP PIPE

YIELD STRENGTH

Min

‘MiIl

Min

A& (4)

(1)

‘I‘ENSILE STRENGTH

(2)

(3)

MP,

Mp.

YS1 170

170

310

YSt 210

210

330

YSt 240

240

410

ELONGATIONFOR GAUOE LENGTH

see Note

NOTEThe minimum elongation in 5OgO nun shall be that deterrlGned by the following formula: c =

1 942’57

A fJO.0

where 8 - minimum elongation in 50.80 mm in percent rounded to the nearest half percent; /. = cross sectional area of the tensile test specimen in square millime~rcs, based on specified outside diameter or nominal specimen width and specified wall thickness rounded to the nearest 6 sq. mm or 484 mmt whichever is smaller; and U = specified tensile strength, hi P.. (See Appendix D for minimum

specimens and grades )

elongation values for various size tensile

11.1.2 Transverse Tensile Tests - For welded pipes of size 219.1 mm OD transverse tensile tests shall be conducted for the purpose of determining tensile properties.

and larger,

11.1.3 Weld Tensile Tests - Transverse tensile strength of the weld shall be determined by tests on weld specimens for welded pipes 219-l mm OD and larger. 11.1.4 Yield Strength - Yield strength shall be the tensile stress required to produce a total elongation of 0.5 percent of the gauge length as determined. 11.1.5 All longkudinal and transverse tensile tests shall include yield strengh, tensile strength and elongation determination. The testing shall be done in accordance with IS : 1894-1972” and with the test pieces given in ---__ *Method for tensile testing of steel tubes (&f

37

rcuision).

’

IS:

1978-l982

Fig. 2 at ambient ,ternperature. Weld tensile tests need not include determiAt the option of the manufacturer, nation of yield strength ,or elongation. transverse yield strength may be determined by the ring expansion method. 11.1.6Test Specimens 11.1.6.1Longitudinal tensile test specimens shall be either full section opecimens or strip specimens at the option of the manufacturer as shown in Fig. 2. Strip specimens from seamless pipes may be taken from any location at the option of the manufacturer. Strip specimens from welded pipes shall be taken approximately 90” from the weld or at the option of the manufacturer from the skelp, parallel to, the direction of rolling and approximately midway between the edge and centre line. 11.1.6.2 All longitudinal strip specimens shall be approximately 38.1 mm wide in the gauge length if suitable curved face testing grips are available; otherwise they shall be approximately 19.00 mm wide for pipes 88.9 mm outside diameter:and less, approximately 25.4 mm wide for pipes 101.6 to 168.3 mm outside diameter, and approximately 38.1 mm wide for pipes of 219-l mm outside diameter and more. Longitudinal test specimens shall represent the full wall thickness of the pipe from which the specimen was cut and shall be tested without flattening. 11.1.6.3 Transverse tensile test specimens from weld pipes shall be taken ‘opposite the weld; transverse weld test specimens shall be taken vith All transverse test specimens shall the weld at the centre of the specimen. be approxi.mately 38.1 mm wide at the gause length and shall represent the full wall thickness of the pipe from which the specimen was cut. 11.1.7 Number of Tensile Tests - One tensile test either longitudinal or transverse as required shall be made on a length of pipe from each lot of 400 lengths or less for each size 141.3 mm outside diameter and less, and from each lot of.200 lengths or less of each size 168.3 to 323.8 mm outside diameter and from each lot of 100 lengths or less of each size 355 6 mm outside diameter and more. For multiple-length seamless pipes, a length shall be considered as all the sections cut from a particular multiple length. 11.1.7.1One weld for tensile test shall be made on a length of pipe from each lot of 200 lengths or less of each size 219.1 to 323.8 mm outside diameter, and from each lot of 100 lengths or less of each size 355.6 mm outside diameter and more for the welded pipe. 11.1.8Re-Psts -- If the tensile tcht ‘specimen representing a lot of pipes fails to conform to the specified requirements, the manufacturer may elect to make re-tests on two additional lengths from the same lot. If both the re-test specimens conform to the requirements, all the lengths in the lot shall be accepted except the: length from which the initial specimen was taken. If one or both of the re-test specimens fail to conform to the specified requirements, thz manufacturer may elect to test individually the remaining 38

_ i I

;

FULL SECTION SPECIMEN

CONGfTUDlNAL STRIP SPECIMEN

RING

EXPANSION

t r-ii<

SPECIMEN 57.0

APPROX 38.1

7

I

I

L

“I_-.-..+

GAUGE

--50.8OCO.13

LENGTH TRANSVERSE

L

-/

SPECIMEN

I

R25.0mtn. WELD

SPECIMEN

-El-

All dimcn-icu:r in millimelres.

FIG. 2

TENsiLE

Ttx 39

SPECIMENS

IS : 1978 - 1982

lengths in the lot, in which case determinations are required only for the particular requirements with which the specimens failed to comply in the preceding tests. Specimens for re-tests shall be taken in the same manner as specified in 11.1.6. If any tensile test specimen shows defective machining or develops flaws, it may be dlscarded and another ‘specimen substituted. When the elongation of any tensile test specimen is less than that specified and any part of the fracture is outside of the middle third of the gauge length as indlc*ted by scribe scratches marked on the specimen before testing, a re-test shall be allowed. 11.2 Fluftening-Test - This is an optional test subject to agreement between the manufacturer and the purchaser for both seamless and welded pipes. 11.2.1 ln the case of electric-welded pipes, produced in single lengths the ‘crop ends of not less than 63 mm cut from each length shall be flattened between parallel plates until the opposite walls of the pipe meet. The tests from each end shall be made alternatively with the welds at 0” and 90” ( point of maximum bending ). No opening in the weld shall take place until the distance between the plates is less than two-third of the original outside diameter of the pipe, and no cracks or breaks in the metal (elsewhere than in the weld) shall occur until the distance between the plates is less than one-third of the original outside diameter of the pipe. Also, evidence of laminztions or the burnt metal shall not develop during the entire flattening operations. If any crop end fails to conform to these requirements, additional tests shall be made on specimens cut from the same end of the same length of pipe until the requirements are met except that the finibhed pipe shall be not shorter than 80 percent of its length after the initial cropping. Precautions shall be taken that crop ends can be identified with respect to the length of pipes from which they were cut. 11.2.2 In the case of electric-welded pipes produced in multiple lengths and subsequently cut into single lengths, a flattening test shall be made described in 11.2.1 on test specimens cut from each end of each multiple length with the weld at 90” ( point of maximum bending) of not less than 63 mm. Tests shall also be made on two intermediate rings cut from each multiple length of pipe with the weld at 0”. When a weld stop condition occurs during production of multiple lengths, flattening tests with the weld at 90” shall be nlade from the crop ends resulting from each side of the weld stop, and may be substituted for the intermediate flattening tests. If any of the specimens fails to conform to the requirements specified in 11.2.1, the manufacturer may elect to make re-tests on specimens, cut from each end of each individual length as provided in 11.2.1. The re-tests for each end of each individual length for electric resistance welded steel pipe shall be made with the weld alternately at 0” and 90”.

IS : 1978 - 1982 11.2.3 In the case of butt-welded steel pipes of size 73.0 mm outside diameter and more, one section of pipe approximately 150 mm long cut from a length from each lot of 400 lengths or less of each size, shall be flattened between parallel plates with the weld placed at 90” (point of maximum bending ). No opening shall occur by fracture in the weld until the distance between the plates is less than 75 percent of the original outside diameter of the pipe, and no cracks or breaks in the metal elsewhere than in the weld shall occur until the distance between the plates is less than 60 percent of the originat outside diameter. If the specimen fails to conform to these requirements, the manufacturer may elect to make re-tests on specimens cut from two additional lengths from the same lot. If all re-test specimens conform,to the specified requirements, all the lengths in the lot shall be accepted except the length from which the initial specimen was taken. If one or more of the re-test specimens fail to conform to the specified requirements, the manufacturer may elect to repeat the test on specimens cut from the individual length remaining in the lot. 11.2.4 Fhttening Test for Seamless and Welded Pipes - In case of seamless pipe, a section not less than 63 mm in length from each lot of 400 lengths or less of each size shall be flattened cold between parallel plates in two steps. During first step, which is a test for ductility, no cracks or breaks on the inside, outside or end surfaces shall occur until the distance between the plates is less than the value of H calculated as follows: H-(l+e)t/(eft/D) where H = Distance between flattening plates, mm; c = Deformation per unit length ( constant for a given grade of steel, 0.09 for grade YSt 170 and grade YSt 210, and 0.07 for grade YSt 240), t = Specified wall thickness, mm; and D = Specified outside diameter mm. During the second step, which is a test for soundness, the flattening shall be continued until the specimen breaks or the opposite walls of the pipe meet. Evidence of laminated or unsound material that is revealed during the entire flattening test shall be case for rejection. 11.3 Rend Test - In the case of butt-welded steel pipes of size 60.3 mm outside diameter and less, one-full section specimen of an appropriate length, cut from a length of pipe from etch lot of 400 lengths or less of each size, shall be bent cold through 90” around a mandrel having a diameter not greater than twelve times the outside diameter of the pipe being tested, with the weld located approximately 45” from the point of contact No cracks shall occur in any portion of of the specimen with the mandrel. the pipe and no opening shall occur in the weld. If the specimen fails to 41

Is : 1978- 1982

conform to these requirements, the manufacturer may elect to make re-tests on specimens cut from two additional lengths from the same lot. If all re-test specimens conform to the specified requirements, all the lengths In the lot shall be acckptcd except the length from which the initial specimen was taken. If one or more of the retest specimens fail to conform to the specified requirements, the manufacturer may elect to repeat the test on specimens cut from the individual length remaining in the lot. NOTE - For the purpose of mechanical testing the weld of electric-welded pipe Of 60.3 mm outside diameter and larger,. ‘We weld” aten& to a distance of 127 mm on either ride of the fusion line. For pqe smaller than 6@3 mm outside diameter, “the weld” extends to a diatanci of a3 mm on either side of the fusion line.

11.4 Submerged-Arc Weld Tests- For submerged arc welded pipe the welds shall be tested by the guided-bend test described in 11.4.1. The required specimens shall he cut frdm the weld of a length of pipe from each lot of 50 lengths or less of each size. The specimens shall not contain any repair welding made by the manual metal-arc procedure. 11.4.1 Guided-bend Test - One face bend and one root bend spednmen, both conforming to Fig. 3 shall be bent approximately 180” in a jig substantially in accordance with Fig. 4. For any combination of diam&er, wall thickness and grade, the maximum value for jig dimension “A” may be calculated by the formula. The manufacturer shall use a jig based on this dimension, or a smaller dimension at his option, however, to minimize the number of jigs required, standard values for dimension “A” have been ‘selected for pipe sizes 323.8 mm and larger. These values are listed for each diameter, wall thickness, and grade in Appendix E. When dimension “A” is greater than 225 mm, the length of the specimen required to contact the male die, need not exceed 225 mm. For pipe with wall thickness over 19.1 mm, a reduced wall specimen as shown in Fig. 3 may be used at the option of the manufacturer. Reduced wall specinens shall be tested in a jig with the “A” dimension calculated for 19.1 mm wall pipe of the appropriate size and grade. 11.4.1.1 The specimens (a) shall not fracture completely, (b) shall not reveal any cracks or ruptures in the weld metal greater than 3.1 mm in length regardless of depth, and (c) shall not reveal any cracks or ruptures in the parent metal, the heat affected zone, or the fusion line longer than 3.1 mm and deeper than 124 percent of the specified wall thickness; except cracks which occur at the edges of the specimen and which are less than 6.3 mm long shall not be the cause for rejection in (b) or (c), regardless of depth. Tf the fracture or crack in the specimen is caused by a defect or flaw, that specimen may be discarded and a new specimen substituted. 11.4.2 Retests-If one or both of the guided bend specimens fail to conform to the specified requirements, the manufacturer may elect so repeat the tests on specimens cut from two additional lengths of pipe from the same lot. If such specimens conform to the specified requirements, all the 42

IS : 1978 - 1982 BE

OXYGEN CUT

Q

I.bmar.

i

.._dh.!k-d.!k-1

WELD

RLINFORCEUEHT

[WALL

SHALL

REDUCED OPTIONAL

FOR

BE

WALL WALL

REMOVED

FROM

BOTH

THICKNESS

t

FACES

SPECCIWENS IHICKNESS

OVER

Zomm

-REDUCED WAtl THICKNESS

THIS MATERIAL REMDV BEFORE OR AFTER FL MANUFACTURERS OPT

REDUCED WALL THICKNESS

Nom. - Use jig dimensions

for 20 mm

specimens.

FIG. 3

GUIDED

wall,

when

terting

with

reduced

wall

BEND TLST SPECIMEN

lenghs in the lot shall be accepted, except the length initially seleted for test. If any of the re-test specimens fail to pass the specified requirements, the manufacturer may elect to test specimens cut from the individual lengths remaining in the lot. The manufacturer may also elect to re-test any length which has failed to pass the test by cropping back and cutting two additional specimens from the same end. If the requirements of the original test are met by both of these additional tests, that length shall be acceptable. No further cropping and retesting is permitted. Specimens for retests shall be taken in the same manner as specified in 11.4.1. 11.5 Hydrostatic

Tests

11.5.1 Each length of the pipe shall withstand without leakage, a minimum hydrostatic pressure as specified in 11.5.2. The test pressure for all sizes 43

a

ALTERNATE

A-

ADJUSTABLE WRAP-AROUND

A=

1.15x 10,(D-22t) D e - - - 2.3- lOI) t

_ t

where

1.15 - Peaking factor D E Specified OD, mm - Spccificd wall thickness, mm t c = Strain, mm/m - 167.5 for Grade A = lW5 for Grade B RA =$A B - A + 2t f 3-2 mm RB

-1B

All dimensions in millimctrcs. FIG. 4

JIG FOR GUIDED BEND TEST 44

TYPE

IS : 1978- 1982

of seamless pipes and for welded pipes in sizes 45720 mm outside diameter and less, shall be maintained for not less than 5 seconds. 11.5.1.1Test pressure for welded pipes in sizes 50890 mm and larger shall be maintained for not less than 10 seconds.

11.5.1.2 Welded pipe shall be struck while under pressure with a one kilogram hammer or its equivalent at the both ends of the pipe within 30 degrees of either side of the weld seani. 11.5.1.3 For threaded and coupled pipe, the test shall be applied with the couplings made up power-tight, if power-tight make up is specified on the purchaser order, except 508.00 mm pipe may be tested in plain-end condition; For threaded pipe furnished with couplings made up handling tight, the hydrostatic test shall be made on the pipe in the plain end or threads only condition or with couplings applied, unless otherwise agreed upon by the purchaser and the manufacturer. 11.5.1.4 The testing.apparatus shall be fixed with an accurate pressure indicator and recorder and provision shall be made for its accuracy to be verified by the purchaser, if required. Such records or charts shall be available for examination at the mill by the purchaser’s inspectors when the purchaser is so represented at the mill. NOTE 1 -The teat pressures.

necessarily

hydrostatic

test pressures specified in these tables are mill inspection

They are not intended to be used as a basis for design and they do not have any direct relationship to working pressures.

6&3 mm outside diameter and more grades YSt 210 and 240 plain NOTE 2 -For end pipes, the test pressures have been computed by the following formula. but limited to 122 MPa for sizes 88.9 mm and less and to 193 MPa for sizes larger than 88’9 mm. All other test prissures have been established arbitrarily:

p =2oOOSt D P = Hydrostatic t

= Tabulated

test pressure in Mcga Pascal, wall thickness in millimetres,

D = Specified diameter in mm, , S = Fibre stress, as outside given belfiw: Grade r--------Standard Test Pressure YSt 210

124

YSt 240

145

F&e Sfras MPa -~_I--__-_~ Alternative Test Pressure 1

155 181

11.5.2 Test pres*ures shall be as specified id: Tables 1 and 2 or a higher pressure as agreed between the purchaser and the manufacturer. 4s

t

It. NON-DESTRUCTWE

TESTING

l&l The weld seam of pipes furnished as per this standard shall be nondestructively tested for full iength as given below for sizes 60.3 mm, OD and huger of grades YM 210 and YSt 240. The location of equipment in the mill shall be at the discretion of the manufacturer. 4 Submerged-arc-welded pipe shall be inspected by radiological methods in accordance with 12.2 and 12.13 full length, or for a distance of 203 mm from each end, if also inspected full length by ultrasonic methods in accordance with 12.14, 12.15, 12.16 and 12.17. Electric-welded pipe shall be inspected by ultrasonic or electromagnetic methods in accordance with 12.14, 12.15, 1216 an& lZ17. 12.1.1 By between the purchaser and the rrcauuf&eturer _and ._ agreement _ when specified on the purchase order seamless pipe shag be non-destmctively inspected in accordance with Appendix F. 12.2 Badidogieal Inspection Equipment - The homogeneity of a weld may be examined by means of X-rays which are directed tbrougb the weld material onto a suitable radiographic film or onto a fluorescent screen. The film, after development, shows the shadowgraph of the weld and discontinuities which may bc observed. The shadowgraph may be observed directly on a fluorescent screen or it may be reproduced on a television screen. X-ray equipment using either film, a fluorescent screen, or a television screen may be used provided adequate sensitivity may be obtained. 12.3 Fluorqscopic Operator Qualification - Operators of fluoroscopic equipment shall be trained, tested and certified by the pipe manufacturer. Details of such training testing and certification programme shall be available to the purchaser. Included in this programme shall be : a) ciassroom instructions inspection techniques;

in the

fundamentals

of radiological

b) on tlie job training designed to familiarize the operator with specific installations including the appearance and interpretation of weld imperfections and defects. The length of time for such tranining shall be of sufficient duration to assure adequate assimilation of the knowledge required for conducting the inspection :

4 knowledge of appropriate requirements of this specification; d) a physical examination at least once every year to determine the operator’s optical capability to perform the required inspection: and

IS : 1978 - 1982 shall be e) upon completion of (a) and (b), an examination given by the manufacturer to determine if the operator is qualified to properly perform fluoroscopic examination. 12.4 Certified operators whose work has not included fluoroscopic inspection for a period of one year or more shall be recertified by successfully completing the examination of (e) above and also passing the physical examination of(d) above. Substantial changes in procedure or equipment shall require recertification of the operators. 12.5 Reference Standards - Unless otherwise specified, the reference standard shail be the _4PI standard penetrameter described in 12.6 or at the option of the manufacturer the IS0 wire penetrameter described in 12.7. By agreeement between the purchaser and the manufacturer other standard penetrameters may be used. 12.6 API Standard Peoetrameter* - The API standard penetrameter shall be as shown in Fig. 5 and made of a material with the same radiological characteristics as the pipe. The thickness of the penetrameter shall be a maximum of 4 percent of the nominal wall thickness. Either 2 percent or 4 percent penecrameters may be used at the option of the manufacturer. Standard 4 percent penetrameter sizes are given in Table 5. 12.7 IS0 Wire Penetrameter* - The IS0 Wire penetrameter shall be Fe l/7, Fe 6112 or Fe 10116 in accordance with Table 6 for the appropriate wall thickness. 12.8 Frequency - The penetrameter shall be used to check the sensitivity and adequacy of the radiographic technique on one pipe in every lot of 50 pipes, but not less than twice per 8 hour working shift when the fluorortopic method is used full length, and on each film when film is used. When film is used full iength, one penetrameter shall be used for each length of pipe. The pipe shall be held in a stationary position during the adjustment of the radiographic technique by use of the penetrameter. Proper definition and sensitivity is attained when all three holes of the API standard penetrameter or individual wires of the IS0 penetrameter are clearly discernible. 12.9 Procedure for Evaluating in Motion Operation of the Fluoroscope - *Q evaluate the definition of defects at operational speeds, a pipe se&oh having a minimum wall of 9.5 mm (see Fig. 6) shall be used. Series of’ 0.79 m,& holes, as shown in Example 6 ( see Fig. 6) shall be drilled into the centre oF the weld to a depth of 100 percent of the total thickness. At least four suqh series shall be used, spaced 300 mm apart. As an alternate to use of the pipe section described above, a penetrameter as described in 12.5, 12.6 and 12.7 may be used at the option of themanufacturer. The speed of operation shall be adjusted so that the holes in the pipe section ,or API penetrameter, or individual wires in the IS0 penetrameter, are cleaify visible to the operator. ‘* Please se, Note under Table 5.

47

--

.__

IS:1978-1982 ,’

38

T

JL

/

+ + --15 --+--++-

I3

=lOENTlFYlNG

NUMBER

diameter of each hole shall be I.6 mm. Holes shall be round and drilled perpendicular to the surface. Holes shall be free of burrs, but edges shall not be chamfered. Each penetrameter shall carry a lead identification number as given in Table 5. The

All dimensions FIG. TABLE

5 API

5

API

in millimetres.

STANDARD

STANDARD

PENETRAMETER

4 PERCENT

PENETRAM&TERS+

( Cfuvse 12.6 ) WALL THICKNESS -----7

r_---L

OV_

MAXI~IUM PENETRAUETER THICKNESS

IDENTIFYING NUMBER

Through

mm

mm

mm

6’4 ;:;

7.9 11.1 9.5

11’1 12.7 15’9 19.1 25.4

12.7 15.9 191 25.4 31.8

O-32 0.38 0.44 0’51 0’64

::

00.89 76 1.02

E 40

*It is proposed 1976 Specification

12 t:

to substitute reference to the corresponding Indian Standard for radiographic image quality indicators (Jcrst r&.rion ).

IS

: 3657-

12.10 Acceptance

Limits - Radiological examination shall be capable of detecting weld imperfections* and defects? as described in 12.11 and 12.12.

12.11 Imperfections - The maximum acceptable size and distribution of slag inclusion and/or gas pocket discontinuities are shown in Tables 7 and Eland Fig. 6 and 7. NOTZ 1 - Unless the discontinuities are elongated, it’cannot be determined with assurance whether the radiological indications repraent slag inclusions or gas pockets. Therefore, the same limits apply ti, all circular-type discontinuities. l An imperfection is a discontinuity outlined in this specification.

t A defect is an imperfection product based on the stipulationsof

or irregularity

in the product detected

of sufficient magnitude this specification.

48

to warrant

by methods

rejection

of the

Is : 1978- 1982 NOTE 2 -, The important factors to be considered in determining rejection or acceptance limits UC rim and spacing of discontinuitia and @e sum of the diameters in an establishe& distance. For simplicity, the distance 9 established as any 152.4 mm length. D&continuities of this type usually occur in an aligned pattern, but no distinction his made between aligned or scattered patterns. Also, the distribution pattern may be of assorted sizes. TABLE

6 IS0

WIRR

PENETRAMETER’

(SENSITIVITY

4 PERCENT)

( Clau1e12.7 ) WIRE DIAMETER mm

WIRE No.

WALLTHICKNSSS mm

Fe f/7 1 2 3 4 5 6 7

320 2.50 200 1.60 1.25 1’00 0.80

82.6 63.5 50.8 41.1 31.8 25.4 20.3

6/l? 6 7 g 9 10 II 12

I *QQ 0.80 0.63 @50 0.40 032 0.25

25.4 20.3 15.9 12.7 10.2 8.3 6.4

Fe liY/l6 0.40 0.32 O-25 0.20 0.16 0.13 0.10

10 11 12 13 14 I.5 16

To determine correct wall thickness for

:

4 percent sensitivity -

divide wire diameter by *04

2 percent sensitivity -

divide wire diameter by -02

Always use penetramcter with wall equivalent wire near center. *PIeare SCIunder Table 5.

49

10.2 8.3 6.4 5-1 4’1 3.2 2’5

1s : 1978- 1982 12.12 Defects - Cracks, lack of complete penetration, or lack of complete fusion, and discontinuities greater in size and/or distribution than shown in Tables 7 and 8 and Fig. 6 and 7 as indicated by radiological examination shall he considered defects. See 8.6 for disposition of pipe containing defects. 12.13 Weld Repair - Any weld rejected as a result of radiological examination may be repaired at the option of the manufacturer, and, if repaired by welding, shall be done in accordance with 8.7 and 8.8 and shall be re-examined radiologically.

0

l EXAMPLE 1: TWO 3.Zmm DlSCONTlNUlTlES

I

..

0

.

EXAMPLE 2:ONE 3.2mm,ONE 1.6mm.TWO 0.8mm

EXAMPLE .

.

.. . . . .

3:ONE 3.2mm.ONE

I

0

.

.

O.Bmm,SIX 0.4 mm OISCONTlNUIT!ES

1

DISCONTINUITIES

. . .. . .

I

EXAMPLE 5:TWO 1.6mm.FOUR

. . EXAMPLE 6:EIGHT

I

1 1

.

1

EXAMPLE I: FOUR 1.6mm

I

DISCONTINUITIES

. . .

0.8mm

. .

DlSCONTINUITIES

.

I

0.8 mm DISCONTINUITIES

......*.........

EXAMPLE 7: SIXTEEN O.&mm MSCONTINUITlES

EXAMPLE 8 : SCATTERED. THREE Odmm,TEN

I

I

0.4 mm DISCONTINUHIES

FIG. 6 EXAMPLES OF MAXI~IUMDISTRIBUTIONPAW OF AND GAS Pocre~ INDI&TED CmcULLE

e

IS : 1978 * 1982

I

I

0

EXAMPLE

I:

ONE

12.7mm

DiSCONTlNUlTY

EXAMPLE

I

c3

D

6.;mm

2:TWO

OlSCONTlNUlTlES

1

I

EXAMPLE

FIG. 7

3: THREE

3.2

DISCONTINUITIES

EXAMPLESOF MAXIMUM DISTRIBUTION PATTERNSOF INDICATED ELONGATED SLAG-INCLUSION TYPE DISCONTINUITIES

TABLE

7

CIRCULAR SJ..AG.JNCLUSION AND GASPOCKET TYPE DISCONTJNUITIKS* (See Fig. 6 ) ( CIuusar12.9, 12.12 and Fig. 6)

SIZE mm

ADJACENT SIZE

MINYMIJH SEPARATION

mm

mm

M.hxlMUsn IN

NUMBER

ANY ( 152’4 mm)

+32

3.2

50.8

2

t3.2

l-6

25.4

Varies

t3.2

0.8

12-7

Varice

*3’2

0.4

9.5

Varies

1.6

1.6

12.7

4

1.6

68

9.5

Varier

1.6

0’4

6.4

Varies

0.8

0.8

?6-4

8

O-8

0.4

4-8

\‘arics

0.4

0.4

3.2

16

*The sum of the diameters of all discontinuities in any ( 152’4 mm ) not to exceed (6’4 mm). tMaximum size discontinuity for ( 6.4 mm ) wall and lighter shall be ( 2’4 mm ). fTwo discontinuitiu ( 0.8 mm ) or smaller, may be as close as one diameter apart provided they arc separated from any other discontinmty by at least ( 12.7 mm ).

51

__ _,._ .._._^I___, _ ___.__

_“_____._--.._

. ..--.---

-.-.--------~

--- .._.l_l_

Is : 1978 - 1982 TABLE

8

ELONGATED

SLAGINCLUSION-TYPE

DISCO.VTINUITIBS+

( Clouzes 12.11, 12.12 andFig. 7 ) MINIMUHSEPARATION mm

MAXIMUM DIMENSIONS mm

MAXtNUMNuvsrn IN ANY (152.4mm)

152’4

1

1.6 x

6.4

76.2

2

1.6 x

3.2

50’8

3

1.6 x 12.7

“Maximum ( 12’7 tirn ).

accumulated

lcr

h of discontinuities in any ( 152’4 mm ) shall not exceed

12.14 Equipment for Ultrasonic and Electromagnetic Inspection - Any equipment utilizing the ultrasonic or electromagnetic principles and capable of continuous and uninterrupted inspection of the weld seam shall be used. The equipment shall be checked with an applicable reference standard as described in 12.15 at least once every working turn to demonstrate its effectiveness and the inspection procedures. The equipment shall be adjusted to produce well defined indications when the reference standard used bv the manufacturer is scanned by the inspection unit in a manner simulating the inspection of the product, and shall be capable of inspecting l-6 mm on either side of the weld line for the entire wall thickness. 12.15 Reference Standards for Ultrasonic and Electromagnetic Inspection Reference standards shall have the same specified diameter and thickness as t$e product ibeing inspected and may be of any convenient length as determined by the manufacturer. Reference standards shall contain machined notties, one on the inside surface and one on the outside surface, or a drilled hdle as shown in Fig. 8, at the option of the manufacturer. The notches shall be parallel to the weld seam, and shall be separated by a distance sufficient to produce two separate and distinguishable signals. The 1.6 mm or 3.2 mm hole shall be drilled through the wall and perpendicular to the surface of the reference standard as shown in Fig. 8. Nore - The reference standards defined above are convenient standards for calibration of bon-destructive testing equipment. The dimensions of these standards should not be constyled as the minimum size imperfection detactable by such equipment.

12.16. Acceptance Limits for Ultrasonic and Electromagnetic Inspection TBble 2 gives, the height OF acceptance limit signals in percent of the height of signals p?oduced by reference standards. An imperfection that produces a signal greater than the acceptance limit signal given in Table 9 copddered a defect unless it can be demonstrated by the manufaeshall tdter % ‘t it’ the imperfection does not exceed the provision of 8.4 and 8.5. Alternatively, indicated imperfections in subyerged-arc and gas metal-arc welded pipe may be reinspected by radiological methods in accordance with 12.2 to 12.1X In addition, for gas metal-arc welded pipe, dontinnous

ls:l!m-1982

B(BUTTRESS)

NOTCH

V 10 NOTCH

AREAOF

EACH SIDE 3.87mm2 P(PARALLEL SIDED) NOTCH

__I

Y_.

max.

10%1 t 1: WITH mir I. OF 0.3 ?r.o5n nm

.

5*/,1+15*/. WITH min. OF 0.3 k.OSmm OEPTH

LENGTH FOR EDDY CURRENT-38mm max. TOTAL LENGTH FOR DIVERTED FLUX ANIJ ULTRASONIC - 5Omm “I”. OF FULL DEPTH N 5 AND

FIG. 8

N 10 NOTCH

REFERENCESTANDARDS

53

IS : ‘1978- 1982 flaw signals greater than 25 mm in length regardless of height, but, greater than the background signal (noise), shall be re-inspected by radiological methods in accordance with 12.2 to 12.13or by other techniques as agreed upon between the purchaser and the manufacturer. TABLE

9

ACCEPTANCE

LIMITS

( Clause 12.6) TYPE

WELD

(1) Submerged-arc and metal-gas arc

]

Electric-resistance, Electric-flash and Electric-induction

)

_I) J

TYPE NOTCH

SIZE HOLB mm

ACCEPTANCBLrxm SIONAL,PERCENT

(2)

(3)

(4)

N5 All other

;:;

I 00 334

32

100 80

NlO, VlO B.P.

12.17 Weld 2epair - Defects in the weld, found by ultrasonic or electromagnetic methods of inspection, may be repaired by welding in accordance with 8.7 to 8.9 and the repaired area shall be re-examined non-destructively by either the ultrasonic or electromagnetic inspection method, at the option of the manufacturer, except that for gas metal-arc welded pipe, the reexamination shall be done by ultrasonic methods.

Ii.18 Reinspection of Pipe Ends - For cold expanded welded pipe n,ondestructively inspected prior to cold expansion, the weld at each end of each length shall be non-destructively reinspected subsequent to cold expansion for a distance of at least 150 mm by any of the methods specified in 12.1 or by the magnetic particle method in accordance with 12.19, 12.20 and 12.21. 12.19 Magnetic Particle Inspection (for Repair Welds and Pipe Ends Only) Equipment - The equipment used for magnetic particle inspection of pipe ends shall produce a magnetic field, transverse to the weld, and of sufficient intensity to indicate weld area defects in the external surface of the pipe of the following characters, open welds, partial or incomplete welds, intermittent welds, cracks, seams and slivers. Reference Standard - If requested by the purchaser, arrangements shall be made by the manufacturer to perform a demonstration for the purchaser or his representative during production of his order. Such demonstration shall be on the basis of pipe in process or sample lengths of similar pipe retained by the manufacturer for that purpose and which exhibit natural or artificially produced defects of the oharacter started .in 12.19. 12.20

54

IS : 1978 - 1982 lP21 Acceptance Limits - The manufacturer shall mark each magnetic particle indication and subsequently explore each indication with respect Imperfections which require grinding or to depth of the imperfection. chipping to determine their depth shall be completely removed by grinding, or by cutting ofI’, or may be repaired by welding in accordance with 8.7 to 8.9 and re-examined non-destructively. 13. MARKING 13.1 The pipes shall be marked with the following particulars either by paint stencilling or die-stamping or any other method as agreed to between the purchaser and the manufacturer:

a) Manufacturer’s name or trade-mark; b) Nominal size; c) Weight in kilogram per met+; d) Grade; e) Process of manufacture: The symbol ‘S’ may be used for s;amles,G pipes, ‘l? for welded pipe except but-welded and ‘F’ for butwelded pipes; f) Type of steel: The following symbols shall be used: . . . . . . . . .E Electric-furnace steel . . . . . .. R Rephosphorized steel ( class II ) Nom -No

type marking is required for open-heart or basic-oxygen steel.

g) The total length of the pipe in the bundle in metres and centimetres shall be ma ked on a metal tag attached to the bundle for de diameter and smaller. For sizes larger than sizes 48.3 mm out snf 48.3 mm outside diameter, the length in metres and centimetres shall be paint stencilled on the outside surface at least 60 mm from the end or, it so agreed between the purchaser and the manufacturer at a suitable place on the inside surface; h) For sizes 60.3 mm outside diameter and more, when specified hydrostatic test pressure is higher tw the tabulated pressure (see Tables 1 and 2 ), the test pressure in MPa preceded by the word TESTED, shall be’ paint stencilled ; and j) Fee;;eeatment

( where applicable ), the following symbols may

1) Normalized or normalized and tempered 2) Sub-critical stress relieved 3) Sub-critical age hardened

. ..HN . . . HS . ..HA

55

_.

X4:1978-1982 13.1.1 Each pipe may also be marked with the IS1 Certification

Mark.

NOTE - The use of the IS1 Certification Mark is governed by the previsions of the Indian Standards Institution ( Certification Marks ) Act +d the Rules and Regulations The IS1 Mark on products covered by an Indian Standard conveys made thereunder. the assurance that they have been produced to comply with the rcquiremmts of that standard under a well-defined system of inspection, testing and quality control which is devised and supervised by IS1 and operated by the producer. IS1 marked products are also continuously checked by IS1 for conformity to that standard as a further safeguard. Details of conditions under which a licencc for the use of the IS1 Certification Mark may be granted to manufacturers or processors, may be obtained from the Indian Standards Institution.

13.1.2 Pipes shall be marked by the manufacturer as specified below unless otherwise agreed to between the manufacturer and the purchaser: 4 For sizes larger than 48.3 mm outside diameter, the required marking shall be paint stencilled on the outside surface of each pipe, or if so agreed between the purchaser and the manufacturer at a suitable place on the inside surface. Additional paint markings as desired by the manufacturer or as requested by the purchaser are not prohibited; and For sizes 48.3 mm outside diameter and less, the required marking shall be die stamped, on a metal tag fixed to the bundle, or may be printed on the straps or banding clips used to tie the bundle.

‘b)

13.2 Die Stamped Markings - For sizes 48.3 mm outside diameter and less the following information in a sequence shall be die stamped on the tag, strap or clip used to tie the bundle. 4 Manufacturer’s name and trade-mark, b) *ISi monogram; cl The nominal size of pipe, 4 Grade ( see 5 ), e) Process of manufacture [ see 13.1 (e) 1, f 1 Type of steel [ see 13.1 (f ) 1, and . . id Length shall be marked as specified in 13.1 (g), NOTE 1 - The manufacturer outside diameter or more.

may die stamp on the pipe or plate for the rizc 6@3 mm

NOTE 2 - Hot die stamping is permissible in every case. Unless otherwise agreed when placing the order, cold die stamping is prohibited for grades YSt 210 and YSt 240 or plate not subsequently heat treated and all the pipes having thickness of 4 mm and less. Cold die stamping shall be done with rounded or blunt dies. For welded pipe, the die stamping shall be at least 25 mm from the weld.

13.3 Paint-Stencilled Markings - For sizes 60.3 mm outside diameter and more, paint-stencilled markings shall be placed on the outside surface on. *Where the manufacturer

is licensed to use the IS1 Certification

56

Mark.

1

IS : 1978-1982

each length of pipe, starting approximately 300 mm from the end in the sequence shown below. If so agreed when the order is placed, all or part of the_ markings may be placed on the inside surface in a sequence convement to the manufacturer. The markings shall be separated by a dash or shall be adequately spaced. 13.3.1 Marking Seqoence - The sequence of paint-stencilled shall be as follows: a) Manufacturer’s name or trade-mark, b) *IS1 monogram, c) Outside diameter (OH) of the pipe, d) Weight in kilogram per metre, e) Grade ( see 5 ), f) Process of manufacture [ see 13.1 (e) 1, 8) Type of steel [ See 13.1 (f) 1, h) Heat treatment, j) Hydrostatic test pressure, and k) Length shall be marked as specified in 13.1 (g).

markings

14. INSPECTION 14.1 Inspection Notice - Where the inspector representing the purchaser desires to inspect the pipe or witness the tests, reasonable notice shall be given of the time at which the run is to be made.

14.2 Plant Access - The inspector representing the purchaser shall have free entry at all times, while work on the order of the purchaser is being performed, to all parts of the manufacturer’s works which will concern the manufacture of the pipe ordered. The manufacturer shall afford the inspector without charge, all reasonable facilities to satisfy him that the pipe is being manufactured in accordance with this specification. All inspections should be made at the place of manufacture prior to despatch from works unless otherwise specified on the purchase order and shall be so conducted as not to interfere unnecessariiy with the operation of the works. 14.3 Rejection - Material which shows injurious defects on mill inspection or subsequent to acceptance at the manufacturer’s works, or which proves defective when properly applied in service, may be rejected and the manufacturer so notified. If tests that require the destruction of material are made other than at the place of manufacturer, the purchaser shall pay *Where the manufacturer

is licensed

to use the ISI Certification

57

Mark.

Is : 1978 - I9t32 for that material which meets the specification but shall not pay for any material which fails to meet the specification. 14.4 Complhtce - The manufacturer is responsible for complying with all of the provisions of this specification. The purchaser may make any investigation necessary to satisfy himself of compliance by the manufacturer and may reject any material that does not comply with this specification.

APPENDIX

A

( Clauses 0.2 and 2.4 ) GUIDELINES FOR ORDERING A-I. Some guidelines helpful in ordering line-pipes are given below: a) Specification - IS : 1978; b) Grade - YSt 170, YSt 210, YS’r240; C) Process of Manufacture - Seamless, ERW, butt welded, subm‘erged arc welded, double seam welded; d) Nominal size; e) Wall thickness or weight per metre; Single or double random or specified length; f) Lengthg) Ends - Bevelled, plain, threaded; h) Hydraulic Test Pressure - Standard or alternate; and j) Non-destructive Test - Optional for seamless pipe.

APPENDIX B ( Chuses’ 2.4, 8.6, 8.8 and 8.9 ) REPAIR-WELDING PROCEDURE AND WELDER PERFORMANCE TESTS B-l. GENERAL B-I.1 All manual and semi-automatic submerged arc and gas-shielded arc repair welds and manual and semi-automatic metallic arc repair welds using coated electrodes shall be made according to a tested procedure and by a repair welder tested in a flat position as specified in B-2 2nd B-3. When the base nictal temperature of the material to be repair welded is below lO”C, submerged arc, gas shielded arc or manual metallic arc methods with low hydrogen electrodes shall be used. 58

IS : 1978- 1982

The manufacturer shall maintain performance test results. B-2. REPAIR-WELDING

PROCEDURE

a record of the procedure

and

TESTS

B-2.1 Repair-welding procedure tests shall be carried out on two specimens of every grade and on material which is on the high side of the chemistry specification and which is at least as thick as the pipe on which welds are to be made. These tests shall be carried out at a temperature at or below, the lowest temperature at which repair welds are made. B-2.2 Transverse Tensile Test - The transverse tensile test specimen shown in Fig. 9A shall be approximately 38 mm wide and shall have the transverse metallic arc butt weld prependicular to the longitudinal axis at the centre of the test specimen. The weld reinforcement shall be removed from both faces. The ultimate tensile strength shall be at least equal to the minimum specified for the grade. B-2.3 Longitudinal Tensile Elongation - The longitudinal tensile elongation test specimen shall conform to Fig. 9B. The weld shall be made in a groove as shown. The elongation after complete rupture of the test specimen in tension shall be at least equal to the minimum elongation specified for the grade. B-2.4 Transverse Guided Bend Test - The transverse guided bend test shall conform to Fig. 9C. The weld shall be made in a groove as shown. The specimen shall be placed on the die with the weld at mid-span, and shall be bent approximately 180” in a jig substantially in accordance with Fig. 4 with the exposed surface of the weld in tension. The bend test shall be acceptable if : no crack or’ other defect exceeding 3.10 mm in any direction develops in the weld metal or between the weld and the pipe metal after bending. Cracks which originate along the edges of the specimen during testing and which are less than 6.30 mm, measured in any direction, shall not be considered or, the specimen cracks or fractures during bending and the exposed surface shows complete penetration and fusion throughout the entire thickness of the weld specimen, no more than six gas-pockets for an area of 645 mm* with the larget dimension not exceeding l-6 mm and no slag inclusion greater than @8 mm in depth or 3-l mm in width and separated by at least 12.7 mm of sound metal. ( If necessary, the specimen shall be broken apart to permit examination of the fracture). B-3. NICK-BREAK TEST B-3.1 The specimen shall conform to Fig. 10. The weld shall be ma& in a groove as shown. The specimen shall be hacksaw-notched from both 59

SPECIMEN EDGES MAY BE OXVGEN MAV ALSO Be MACHINED

ITAN0

CUT

/WELD WALL I

9A

(Tr8nrvcrra)

THESE EDGES

WELD

9B

EDGES ALSO

WALL

BE

MACHI~EG

75.0

57.0

REINFORCEMENT

SHALL

Tensile-Elongation

k.PECIMEN AN,, MAY

I)

f

Tensile Test Specimen

WV BE OXVGEN CUT AN0 UAV BE MACHINED

THICKNESS(

BE REMOVE0

Test Specimen

EDGE5 MAV BE UXVGENCUT ALSO BE MACHINED 671.6 7

-

SEECL

WELD

REINFORCEMENT

9C

SHALL

BE

Guided-Bend

AUSE

B-2.1

REMOVED

lest

Specimen

All dimensions in millimetrcr. FIG. 9

REPAIR WELDING BECIYENS 60

i

IS : 1978 - 1982

edges to the centre of the weld and shall be broken by pulling or hammer blows at the centre or one end. The test shall be accepted if the exposed surface shows not more than: a) one gas pocket for nominal wall thickness of 6.3 mm and less, b) two gas pockets for nominal wall thickness of 12.70 mm or less but greater than 6.3 mm, and c) three gas pockets for nominal wall thickness greater than 1270 mm. B-4. REPAIR-WELDER

PERFORMANCE

TESTS

B-4.1 Repair-welders performance t&s arerequired ‘on two specimens from each test of every grade, except that a welder qualified on one grade is also qualified for any lower grade. If either of the two specimens fail to conform to the requirements specified, four re-tests shall be required, if made immediately or two re-tests shall be required if the welder takes further instructions in the practice before making a re-test.‘ All re-tests shall conform to the requirements specified. Further performance tests are required at a minimum of l-year intervals; and also if the repair welder is not engaged in the tested repair welding procedure for a period of three months or more, or if there is some specific reason to question his ability. Both of the following tests sball be made: a) Transverse guided bend test-as specified in B-2.4, b) Nick-break test - as specified in B-3.

APPENDIX

C

( Clause 10.1 ) SPECIFICATION

OF WELDED

JOINTERS

C-l METHOD C-l.1 Welding of any type generally recognized as sound practice shall be

permitted except when a particular method is specified by the purchaser. C-2. WORKMANSHIP C-2.1 The ends of the pipe to be welded together shall be prepared in accordance with the requirements of the process used. The completed jointers shall be straight within limits recognized by this speciEcation. 61

IS : 1978- 1982 C-2.1.1 Ail jointers shall be marked so as to identify the respective welders. Each weld shall have a substantially uniform cross-section around the entire circumference of the pipe. At no point shall its crowned surface be below the outside surface of the parent metal nor shall it rise above the later by more than 1.6 mm.

C-3. HYDROSTATIC

TESTS

C-3.1 Hydrostatic tests shall be made in accordance with the provisions of 11.5 except that hammer blows shall be struck near the jointer weld instead of near ends of jointers. These hammer blows shall be struck on seamless as well as on welded pipes. Minor sweats or leaks which develop in welds during the hydrostatic test may be repaired by welding after complete removal of the defective weld area by chipping. Such jointers shall again be subjected to hydrostatic tests. C-4. TENSILE

TEST

C-4.1 Longitudinal tensile tests of jointer welds shall be made with the procedure similar to that specified earlier except that, whenever possible, the test specimen shall be a full cross-section sample with the weld at the centre. Otherwise, a strip specimen of the required size shall be taken at right angles to the weld between jointers with the finished weld at the centre at the specimen. Test specimens from welded pipe shall not be taken nearer than 90” to the longitudinal weld. The number of such tensile tests shall be one for each lot of 50 jointers or less, but not less than one for each welder. All tensile test specimens shall be tested with the pipe and weld at room temperature. Each weld shall develop the full minimum tensile strength specified for the pipe. C-5. BEND TEST C-5.1 Two guided bend tests one face and one root, shall be made on specimens cut from the jointers weld of one length of the pipe from each lot of 50 jointers or less of each size. Specimens shall be prepared in accordance with Fig. 11 and shall be bent approximately 180” in a jig substantially in accordance with Fig. 4. The bend test shall be acceptable if no cracks or other defects exceeding 3.18 mm in any direction develop in the weld metal or between the weld and the pipe metal after bending. Cracks which originate along the edges of the specimen during testing and that are less than 6.30 mm, measured in any direction shall not be considered. Test specimens shall not include manual metal arc repair welds. C-6. RE-TESTS Cd.1 If any test specimen fails to conform to the requirements specified, the manufacturer may elect to make the specified tests on two additional 62

i

Is

:1978-1982

jointers from the same lot by the same welder. Re-tests are required Only for the test with which the specimen did not comply originally. If_IfapY specimen on re-test fails to conform to the specified requirements, all JOInters welded by the particular welder, in the lot under test. shall be rejected. /--SAW

CUT

All dimensions in millimetru.

FIG. 10

THESE

NICK BREAK ‘MT

SPECIMEN

EDGES MAY BE OXYGEN CUT ALSO BE MACHlNED

r

WELDED

PIPE JOINT

150 ------I WELD REINFORCEMENT 5HALL BE REMOVED FLUSH WITH THE SURFACE OF THE SPECIMEN

FIG.

11 GUIJXD BEND SPECJMBN 63

Is:1978-l982

APPENDIX

D

( Clause 11.1 ) ELONGATION TABLE, METRIC TENCULBTsn

~-----._L-.--_~

Area

A

mm’

-

SPSCIMEN

Specified Wall Thickness -A-----_ 19.05 mm 25.4 mm 3&l mm Specimen Specimen Specimen

ELONOATION IN 50*80mm MXNIMW, PERCENT

#------*--__-~ Specified Tensile Strength, Mpa _-_--.A_-,---., Grade Grade Grade . YSt 170 YSt 210 Yst 240

(1)

(2)

(3)

(4)

(5)

(6)

(7)

484 and greater

25.25 and greater

18.95 and greater

12.62 and greater

38.5

36.0

29-5

477 471 464 458 452

24.89.25;22 24-56-2487 24.23-24-54 23.90-242 1 23-55-23.88

l&67-18*92 l&44-1&64 l&16-18*42 17.93-18.14 17.65-1791

12-45-12’60 12-29-12.42 12’12-12.27 1 l*96-12s09 11*79-11.94

38-O 38.0 38’0 38-O 38.0

36’0 36.0 36.0 35.5 35.5

29.5 29.5 29.5 290 29-o

445 439 432 426 419

23.22-23.52 22.86-2P19 22.53-22.83 22.20-22.50 21.87-22.17

17.42-17.63 17*14-17.40 16.92-17.12 16.64-16.89 16-41-16°61

11.61-11.76 11.43.11.58 11.28-l 1.40 ll*lO-11.25 10-95-l I.07

37.5 37.5 37.5 37.5 37.0

35.5 35.5 35.5 35-o 35.0

290 29.0 29.0 29.0 28.5

413 406 400 393 387

21.51-21’84 21*18-21.49 20#83-21.16 20.50-20-80 2@17-20:47

16.13-16.38 15*90-16’10 15.62-15.88 15-39-15.60 15.1 l-15-37

10’77-10.92 10’59-10.74 10*41-IO.57 10*26-IO.39 10*08-10.24

37.0 37.0 37.0 36.5 36.5

35’0 35.0 35’0 34.5 34.5

28.5 28.5 28.5 285 28.5

381 374 368 361 355

1984-20.14 194%19.81 19’15-19.46 [email protected] 18.47-18.77

14*88-15.09 lC60-14.86 l&3&1&58 14*10-1435 13.87-14.07

9.93-10.06 9.75. 9.91 g-58- 9.73 9.40- 9.55 9*25- 937

36.5 36.5 36.0 36.0 36-o

345 34.5 34’0 34.0 3*0

28.0 28.0 28.0 28-o 28-o

348 342 335 329 322

18*14-18.4s 17*81-l&11 17-45-17.78 17.12-17.42 16.76-17.09

13.59-13.84 13-36-13.56 13*08-13.34 12.85-13.06 12’57-12’83

9*07a-92a-74&568*38-

9.22 9.04 8.89 8.71 8.53

36’0 35.5 35.5 35.5 35.5

34.0 33.5 33-5 33.5 33.5

27.5 27.5 27.5 27.5 27.0

316 310 303 297 290

16.43-l 6’74 16*10-16.41 15.77-16.08 15.42-l 5.75 15.09-15.39

12.34-12.55 12.06-12.32 1 l-84-12*04 11*56-11.81 11’33-11.53

a-238.057*907.727*54-

8.36 8.20 8.03 7.87 7.70

35-o 35.0 35.0 34.5 34.5

33.0 33.0 33.0 33.0 32.5

27.0 27.0 27.0 27-O 26.5

( Continued )

64

! 1 !

IS .: 1978 - 1982 ELONGATION Area A mm’

TABLE,

METRIC -

TENSILE TEST SPECIMEN r-------_*_____ Specified Wall Thickness _-_---A--P--’ 19.05 mm 25.4 mm 38.1 mm Specimen Specimen Specimen

IN 50.80 mm MINIYIJM,PERCENT ~___~_~~~ Specified Tensile Strength, Mpa

’

‘Grade YSt 170

Grade YSt 210

Grade YSt 240

[email protected] 10*54-10.80 10.31.10.52 10.03-10.29

(4) 737-7.52 7.21-7.34 7-04-7-19 6*88-7.01 6-71-6’86

(5) 34-s 34-5 340 34’0 34.0

(6) 325 32.5 32.0 32’0 32.0

(7) 26.5 26-5 26.5 26.0 26-O

13.06-1636 12-70-13-03 12.37-12.67 12.04.12.34 11~71-12~01

9*80-10.01 9*52- 9.78 9*30- 9.50 g-02- 9.27 8*79- 8.99

6.53.6.68 6.30-6’50 6.20-6.32 6.02-6 I 7 5.87-5.99

33-5 33.5 33.0 33.0 33.0

31.5 31.5 31.5 31.0 31.0

26.0 26.0 25.5 25.5 25.5

11.35-I 1.68 11.02-l 1.33 10.67-11’00 10.34-I 0.64 lO*Ol-10-31

8.51. 8*288.OO7*777*49-

8.76 8’48 8.26 7.98 I.75

5-69-5.84 5.51-5.66 5’33-5’49 5.18-5.31 5.00.5.16

32’5 32’5 32-5 32’0 32’0

31.0 3Q.5 30.5 30.5 30.0

25.0 25.0 25.0 25.0 24-5 24-5 24.5 240 24.0 23.5

(2)

(3)

I l-05.1 1.30

2265:

14.73-l 5.06 14’40-1471 14.07-14.38 13.74-1405 13.39-13.72

252 245 239 232 226 219 213 206 200 194

(1) 284 277 271

Contd

ELONOATION

187 181 174 168 161

9*689*32&998.64. 8*31-

9.98 9.65 9.30 8.97 8.61

7*266.986.76. 6.486*25-

7.47 7.24 6-96 6.73 6.45

4.85-4.98 467-483 450.465 4-32-4-47 417-4.29

31.5 31.5 31.0 31.0 30.5

30.0 29.5 29.5 290 29.0

155 148 142 135 129

7*98- .&28 7.65- 7.95 ?29- 7.62 6*96- 7.26 6*60- 6.93

5.975.745*46?234*95-

6.22 5.94 5.72 5.44 5.21

3.99-k 14 3’84-3.96 3’66-3.81 3.48-3.63 3-30-3.45

30.5 30.0 30.0 29.5 29.5

29-o 28.5 28.5 28.0 27.5

23.5 23.5 23.0

123 116 110 103 97

6*275*945*615*26&93-

6.58 6’25 5.92 5.59 5.23

4,724.444,223.94. 3.71-

4.93 4-70 4.42 4.19 3.91

3.15-328 2;97-3.12 2.82-2.95 2.64-Z-79 246-2.62

29-o 29.0 28.5 28-O 275

27.5 27.0 27.0 26.5 26.0

22.5 220 22.0 21.5 21.5

&574.243.913*583.23-

4.90 4.55 4.22 3.89 3.56

3.433*202*922*692.41.

3.68 3.40 3.18 2.90 2.67

2’31-2.44 2-13-2.29 l-96-2.1 1 yy-y$

27.5 27-O 26.5 26.0 25.5

26.0 25.5 25.0 24.5 24.0

21.0 21.0 20.5 20-o 19.5

Z-902’542’21l-88l-55-

3.20 2’87 2.51 2.18 1.85

Z-181*901*68l-401*17-

2.39 2.16 1.88 1.65 1.37

;-“;;-yg 1*12:1:24 0~94-1~09 0*79-0.91

25’0 24.5 24.0 23-O 22.5

23.5 23.0 22.5 22-o 21.0

19.5 19.0 18.5 18.0 17.0

O-61-0.76 0.43-0.58 0.25-0.41 @23 and less

21.5 20.0 18-5 16-O

20.0 19.0 17-5 15’0

16.5 15.5 14.5 12.5

:9 :: 65 z: 45 ;2” 26 19 13 6 and less

1*19- 1.52 O-86- I.17 @51- 0.84 048 and less

O-89- 1.14 0.66- 0.86 0*38- 0.64 0’36 and less

. *_.

65

.

EC.

IS : 1978 - 1983

APPENDIX E ( Clause 11.4.1 ) GUIDED-BEND TEST JIG DIMENSIONS OIJTBIDB

DIAMETER WALL mm

(1)

THICINESS,t

DIMENIIIONS, A r------__-

mm

-----7

Grade YSt 170

Grade YSt 210

(2)

(31

(4)

300

4.37 4-78 5.56 6.35 7-14 7.92 8-38 8.74 952 11-13 12.70 14-27 15.88 17-48 19’05 20.62 22.22

25.4 30.5 35.6 40.6 4R.3 55.9 55.9 55.9 66’0 78.7 940 III.8 132-l 157.5 188.0 223.5 266.7

35.6 35.6 40.6 55-9 55.9 66.0 78.7 78.7 78.7 Ill.8 132*1 157-5 188.0 223.5 266.7 320-O 383*.5

350

4-78 5.16 6.35 7.14 7.92 8-74 9.52 11.13

30-5 30.5 40.6 48.3 4&3 55.9 66.0 78.7 94-o Ill-8 132.1 157.5 157.5 18&O 223.5 266.7

35-6

:::;s 15.88 17.48 19’05 20’62 22.22 23-83 400

4-78 5.16 5.56 6-35 7.14 7.92

66

k

z-i 55-9 66-O 78.7 78.7 94.0 152.1 157-5 188-O 223.5 223.5 266-7 320-O 383-5

30.5

35’6

35.6 30.5 40.6 39”.

z-i? 48.3 55.9 66-O

IS : 1978 - 1981 GUIDED-BEND

TEST JIG DIMENSIONS -

OUTSIDE DIAYHTBR WALL THICKNESI, t mm mm

(1) 400

450

500

c-

---*--~~ Grade YSt 170

Conrd

DIMENSIONS, A Grade Yst 210

(2)

(3)

(4)

a.74 9.52 11.13 12.70 1427 15.88 1748 19.05 20.62 22.22 23.83 25.40 26.97 28.58

55.9 66.0 78.7 940 111.8 111.8 131.1

66.0 78’7 94.0 :::z 157.9 188.0

157.5 188.0

22%

E8 266 7 266.7 320.0

266.7 320.0 383.5 459.7 551.2

25.4

35.6

35.6 40.6 g.i

:g 66.0 55.9

478 5.56 635 7.14 7.92 874 9-52 11.13 12.70 14.27 15.88 I 748 14.05 20.62 22.22 23.83 25.40 26.97 28.58 30.15 31.75 5.56 6.35 7.14 7.92 a.74 952 Ii.13 12.77 14.27

66-O 78.7

55.9 78.7 78.7 94.0

16.: 132’1

::::: 157.5 157.5 188.0 223.5

157.5 188.0 18&O 2235 266.7 320.0

266.7 223.5 266.7 320.0 383.5

~%i . 459.7 459.7 551.2

30.5 4&6 40.6 4a.3 55.9 559 66.0 78.7 94.0

z.3” 55.9 ;:

.

1%: 132.1 ( Conrinurd)

67

IS : 1978 - 1982 GUIDED-BEND OUTBIDE DIAMETER

mm

TEST JIG DIMENSIONS -

WALL THICKNESS, t

c ---L Grade YSt 170

mm

(1)

(2)

(3)

500

15’88 17.48 1905 20.62 22.22 23.83 25’40 26.97 2858 30-18 31.75

111.8 132-l 132-l 157.5 1880 188.0 E 266.7 226-7 320.0 320-O 383-5

xs::: 550

30-5 35.6 40.6 489 55-9 5!P9 66.0 78-7

f-3; . 7.92 8.74 9-52 Il.13 :2:‘: 1588 17-48 1%05 %I.62 %2ei: 25-40 25-97 28.58 30.15 31.75 32-32 xg;. 38.10

600

6-35 7.14 7-92 8-74 9-52 11~13 12.70

68

Canrd

DIMBWXIONII,4 -----

Grade

Y.st 210 (4) 157.5 157.5 188-O 223.5 223-5 266.7 320-O 320.0 383.5 E: 551.2 5511 40.6 E-9” 66-O 66-O 78’7 94.0 111.8 132-l 132-l 157.5 188.0 188-O 223.5

1E 132.1 132-l 1575 157-5 188.0 188.0 223.5 266.7 266-7 320.0 320.0 320-o 383.5 383.5

f% 320-O 320.0 383-5 459.7 459.7 551.2 551.2 564.2

35-6 z.3”

48-3 55-9

55.9 55.9 E .

68.0 78-7 111.8 940

tS : 1978 - 1982 GUIDED-BEND TEST JIG DIMENSWNS - Conrd Or_mw~~DIAMETER mm

WALL THICKNESS, I mm

#---P-P, Grade Yst 170

DIUSIIOWS, A Grade YSt 210

a1

(2)

@I

600

1427 15.88 17.48 19.05 20.62 22.22 23.83

94-O iii.8 111.8 132’1 157.5 15P5 18&O 188.0

111.8 132.1 15P5 18&O 188.0 22.P5 223.5 266.7

2235 223.5

“3;::

Et:: 520.0 320.0 383.5 383.5

383.5 -4597 459.7

383.5

5642

s::;; 28.58 30.18 31.75 33.32 3492 36.53 38.10 39.67 650

(41

% .

48.3 57.9 55.9

6.35 7.14 7.92 a.74 9.52 11’13 12.70 1427

356 40.6 48.3 55.9 55.9 6&O 78.7 94.0,

15.88 17.48 1905 20.62

::Z;f 1321 132.1

ZE 25.40

157.5 188.0 188*0

E8 111.8 132’1 157.5 157.5 18&O 223.5 22S.5 266.7

6.35 7.14 7.92 9.52 11.13

483 40’6

48.3 55.9

z: 66.0 78.7 94.0 94.0 111.8 132.1 132.1

E 94.0 94.0 111.8 132.1 157.5 1575 18&O

:z 15.88 17.48 19.05 20.62

69

EZ

IS:1978-1982 GUIDED-BEND

TEST JIG DIMENSIONS -

OUTIIDE DIAMTJSR WALL THICXZV~,-t mm mm

(1)

22.22 23.83 25.40

750

635 7.14 792 9-52 11’13 12’70 14-27 15-88 17.48 1905 20-62 22.22 23+3 2!b40

850

DIMEIWONS, A

---

Grade YSt 170

(3)

(2)

700

800

-,

1575 157.5 188-O 35.6 40’6 z:i: KG 94:o 94’0 111-8 132-l 135.1 157-5 157.5 188-O

e35 7.14 7-92 9-52 11.13

Cmtd

Gmdt

Yst 210 (4) 186.0 223-5 266.7 48-s 55’9 55-9 66.0 78.7 94-o 111.8 132.1 157.5 157.5 188.0 1wo 223.5 223.5

:z 15-48 1744 19-05 @-l-62 22.22 23.83 25.40 26-98 28.10 29.29 30.54

35’6 40.6 48’3 55.9 66.0 78.7 94’0 94.0 Ill-8 132.1 132-l 157.5 157.5 188.0 188-O 223.5 223.5 223.5

132-l 157.5 188-O 188-o 223.5 223.5 266.7 266.7 320-O 320.0

615 7’14 7.92 9.5i 11.13 12.70 14-27 15.88

35.6 40.6 48.3 55.9 66.0 78.7 54.0 94-o

48.3 55.9 55.9 66’0 m-7 94-o 111-8 132.1 ( Continued )

70

IS : 1978 - 198t GUIDED-BEND TEST JIG DIMENSIONS OUTSIDEDIAMZTER WALL THICKNESS, I mm

17.48 19.05 20.62 22.22 23.83 %:“9i 28-10 29.29 30.54

900

6.35 7.14 7.92 9.52 11.13 :z 15’88 17-48 19-05

950

DZYLNSIONI, A Grade YSt 210

111.8 132’1 132-l 157.5 157.5 188.0 188-O 188.0 223.5 223.5 35.6 40.6 48.3 55.9 66-O 78.7

E22 23-83 25.40 26.98 28-10 29-29 SO.54

E 111.8 111.8 132.1 157.5 157.5 157.5 188-O 188.0 223.5 223.5

7.92 a-74 9-52 10.31 11.13 t 1.91 12.70 14.27 15-88 17.48 19-05 20.62 22.22 23.83 25.40 26-98

48-3 48.3 55.9 55.9 66-O 66-O 78-7 78-7 94-o 111.8 111.8 132.1 132.1 157-l 157.1 188-O

,

(41

(3)

(1) 850

~-----zc_ Grade YSt 170

Contd

132’1 157.5 188.0 188-o 22% 266.7 266.7 266.7 3200 48-s 55.9 55.9 66.0 78.7 94-o 111.8 132-l 132.1 167.5 157’5 188.0 Ki 223.5 266.7 266.7 320-O 55-9 66-O 66-O 78-7 78.7 94-o 94.0 111.8 132.1 132’1 157.5 157.5 188-O 188-O z5

-*.2
( Continued )

IS : 1978 - 1982 GUIDED-BEND TEST JIG DIMENSIONS - Cunfd OUTSIDEDxarrrmsa mm

WALL THICKNEW,t mm

(1)

12)

950

28.10 2929 30.54

188.0 2285 223.5

266.7 226.7 320’0

1000

7.92 8.74 9.52 10.31 11.13 11.91 12.70 14.27 15.88 17.48 19’05 20.62 22.22

48.3 48.3 55.9 55.9

EZ 26.98 28.10 29.29 30.54

z: 78.7 78.7 94.0 111.8 111.8 132.1 132.1 157.5 157.5 188.0 188’0 223.5 223.5

55.9 66.0 66’0 78.7 78.7 94.0 94.0 111.8 132’1 132.1 157.5 157.5 188.0 188.0 223.5 223.5 266.7 266.7 266.7

1050

8.74 9.52 10.31 Il.13 11’91 12.70 14.27 15.88. .I 7.48 19.05 20.62 22.22 23.83 25.40 26.98 28.10 29.29 30.54

E 55.9 66.0 66.0 78.7 78.7 94.0 111.8 111.8 132.1 132.1 157.5 157 5 18&O 188.0 188.0 223.5

66.0 660 78.7 78.7 94.0 94’0 111’8 132’1 132.1 157.5 157.5 188.0 188*0 223.5 223.5 266.7 266.7 266.7

1100

8.74 9.52 10.31

48.3 55.9 55.9

66.0 6&O 78.7

DZMISNSZONS, A r__----A_-_-__~ Grade Grade YSt 210 YS1 170 (3)

72

(4)

. IS :

GUIDE&BEND OUTSIDBDIAMETJSR W&L mm

(1) 1 100

1 150

TEST JIG DIMENSIONS -

THICKNIQIS, t mm

Cored A

~--_---_-

r-r--

Grade YSt 170

Grade YSt 210

(2)

(3)

(4)

11.13 1191 12.70 1427 15.88 17.48 19.05 20.62 22.22 23.83 25.40 26.98 28.10 29.29 30-54

660 66-O 78-7 78-7 94-o Ill-8 111.8 132-l 132-l 157.5 1575 188.0

78.7 94.0 94.0 111.8 132’1 132-l 157.5 1575 188.0 1880 223.5 223.5

:ii:: 223.5

f 266:7

8-74 952 lo-31 xi z 15.88 17-48 1905 ES 23.83 25.40 26-98 28.10 29.29 30-54

1200

DINBNUONI,

1978- 1982

8-74 9-52 10.31 11-13 11-91 12.70 14.27 15.88 17-48 19.05 20-62

g;

.

66.0 66.0 78-7 78-7 94-o 111.8 111.8 132’1 132’1 157.5 157.5

X’:

66-O 66.0 78.7 78.7 94.0 94-o 111.8 111.8 132’1 157.5 157-5 188.0 188.0 223.5 267.7 267.7 66-O 66.0 78-7 78.7 94-o 94.0 111.8 Ill.8 132-l 157.5 157.5

( Continued )

-.

--....

IS z 1978- 1982 GUIDED-BEND TEST JIG DIMENSIONS - Contd OUTSKDEDIAMETER WALL THIUXEIS, t mm mm

r-----

Grade YSt 170 (3)

DIMENSIONS, A ----------~ --

Grade YSt 210 (4)

(1)

(2)

1 200

22.22 23.83 25.40 26.98 28.10 29.29 30.54

132.1 157.5’ 157’5 157.5 188.0 188.0 223-5

188.0 188.0 123.5 223.5 223-5 266-7 2S6.7

9-52 IO.31 1l-13 11.91

55.9 55.9 66-O 66.0 78.7 78.7 940 111.8 111.8 132-l 132.1 157.5 157-5 157.5 188-O 188’0 223.5

66.0 78.7 78.7 94-o 94-o ill.8 111.8 132-l 157.5 157.5 188.0 188-O 188.0 223.5 223.5 266.7 266-7

1 300

E 15m 17.48 19.05 z; 23-83 25.40 26-98 28.10 29-29 30-54 14QO

1500

9.52 10.31 Il.13 1 l-91 12.70 14-27 15.88 17.48 19.05 20.62 22.22 23.83 25.40 26.98 28-10 29.29 30.54

55-9 55.9 66’0 66-O

66.0 78.7 78.7 94-o

78.7 78-7 94.0 111.8 111-a 132.1 132.1 157.5 157-5 157’5 188.0 188-O 188-O

E 111-8 132-l 157-5 157.5 188.0 188-O 188.0 223.5 223.5 266.7 266.7

9.52 10.31

55.9 55.9

66.0 78.7 ( Continwd )

74

IS : 1978 - 1982 GUIDED-BEND OUTSIDE DIAMETER WALL mm

TEST JIG DIMENSIONS

-THICKNESS,

mm

-

Contd

DtMeNStONS,

t

A

r-_-____h____--_--~

Grade YSt 170

Grade YSt 210

(1)

(2)

1 500

11.13

66.0

11.91

66.0

78.7

12.70

78.7

94.0

14.27

787

111.8

15.88

94.0

Ill.8

94-o

132.1

17.48

1600

78.7

19-05

ill.8

132’1

20.62

132-l

157.5

22-22

132-l

157.5

23.83

132.1

188,O

25.40

157.5

188-O

26.98

157.5

223.5

2810

188.0

223.5

29.29

la&o

266.7

30.54

ia*0

266.7

9.52

55.9

66-O

lo-31

55.9

78.7

II*13

66.0

7a-7

11.91

66.0

7&7

12’70

78.7

94.0

14-27

7a-7

111.8

was

94.0

111.8

17.48

94.0

132-l

19.05

iii-8

132.1

20.62

132-l

157.5

22.22

132-l

157.5

23.63

132-l

188.0

25-40

157.5

ia*0

26-98

157.5

223’5

28-10

188-O

223.5

29.29

la8-0

223.5 ’

3o-54

188’0

266-7

75

IS : 1978 - 1982

APPENDIX

F

( CZause 12.1.1 ) ~~~~DESTRUCTIVE

INSPECTION OF SEAMLESS LINE PIPE

F-l; SUPPLEMENTARY NON-DESTRUCTIVE INSPECTION F.l.l Seamless pipe shall be inspected full length for longitudinal imperfections by either magnetic particle inspection or by ultrasonic or electromagnetic methods. The location of the equipment in the mill shall be at the discretion of the manufacturer, however, the non-destructive inspection shall take place after all heat-treating and expansion operations, if performed, but may take place before cropping, bevelling and end sizing. F-2. MAGNETIC PARTICLE INSPECTION F-2.1 When magnetic aparticle inspection is employed to inspect for longitudinal imperfections, the entire outside surface shall be inspected. The depth of all imperfections revealed by magnetic particle inspection shall be determined. Imperfections revealed by magnetic particle inspection and determined to be greater in depth than 125 percent of the specified wall thickness shall be classified as defects and given one of the dispositions specified in 8.6. F;3. ULTRASONIC OR ELECTROMAGNETIC INSPECTION F-3.1 Equipment - Any equipment utilising the ultrasonic or electromagnetic principles and capable of continuous and uninterrupted inspection of the entire outer surface of the pipe or tube may be used. The equipment shall be of sufficient sensitivity to indicate defects and shall be checked as prescribed in F-3.2. F-3.2 Reference Standards - A reference standard having the same nominal diameter and thickness as the product being inspected shall be used to demonstrate the effectiveness of the inspection equipment and procedures at least once every working turn. The reference standard may be of any convenient length as determined by the manufacturer. It shall be scanned by the inspection unit in a manner simulating the inspection of the product. For ultrasonic inspection, the reference standard shall contain a machined notch as specified in Fig. 12. For electromagnetic inspection, the reference standard shall contain either a machined notch as specified in Fig. 12 or a 3.2 mm drilled hole. The notch shall be in the outer surface of the reference standard and parallel to the longitudinal axis of the pipe or, at the option of the manufacturer, may be oriented at such an angle as to optimize the 76

I6 : 1978- 1982

detection of anticipated imperfections. The 3.2 mm hole shall be drilled 1: radially through the wall of the reference standard. The inspection equipment shall he adjusted to produce a wall-defined indication when the reference standard is scanned by the inspection unit. Depth of notch, h shall be 12.5 percent bf the nominal wall thickness of the pipe being inspected, but not less than 0.30 mm. For ultrasonic and eddy current the length of notch at full depth, L, shall be at least twice the width of the scanning head. For diverted flux the length of notch shall be as required by the equipment design to provide a reproducible signal when the reference standard is passed through the equipment at the inspection line speed for the pipe being inspected. Three PC&es through the equipment shall be required to insure reproducibility.

+I+

E$J-

NOTCH 3.2mm

T

ORILLEO

FIG. 12

NOM

HOLE

REFERENCE STANDARD

F-3.3 Acceptance Limits - Any imperfection that produces a singal greater than the singal received from the reference standard shall be considered a defect unless it can be demonstrated by the manufacturer that the imperfection does not exceed the provision of 8.6. Pipe containing defects shall be given one of the dispositions specified in 8.6. NOTE 1 - The reference standards defined above are convenient standards for calibration of non-destructive testing equipment. The dimensions of these standards should not be construed as the minimum size imperfection detectable by such equipment. NOTE 2 -Reference standards other than the specific notch described above may be used by agreement between the purchaser and the manufacturer.

F-4. MARKING F-4.1 Pipe non-destructively

inspected in accordance with this requirement

shall be suitably marked. 77

IS : 1978- 1982 ( Continued from pogd 2 ) R@rwnting

Members

SARID. Durra

Indian

SHRI v. JlrUANATNAN

Petroleum Hindustan Visakhapatnam

Tube Co Ltd, Jamshedpur

SHRI R. K. GIJPTA ( Altemute)

SHRI SHHI

Corporation

Ltd,

ASHOKTANDON ( Ahnatc)

0. P. KAXKAR SHRI N. CHANDRA ( Ahnate

The In&an

Seamless

Metals Tubes Ltd, Bombay

)

DR A. R. KES~AR

Zenith

SHRI P. D. MAHAJAN SHRI L.C. BARUA ( Altematu)

Oil India Ltd, Calcutta

Steel Pipes and industries

Ltd, Khopoli

SHRI E. SWBA RAO

Indian Oil Corporation Ltd, Bombay SHRI B. K. SRIVASTAVA(Al&mute) Steel Authority of India Ltd (Rourkela REPRESENTATIVE Rourkela SWRI H. J. THAKER

Gujarat

Steel Tubes Ltd, Ahmadabad

Steel Plant),

. ’

;

.,.

-: I’

,

BUREAU OF INDIAN STANDARDS Headquarters: Manak Bhavan, 9 Bahadur Shah Zafar Marg, NEW DELHI 110002 Telephones: 323 0131,323 3375,‘323 9402 Fax : 91 11 3234062,91 11 3239399.91 11 3239382 Telegrams : Manaksanstha (Common to all Offices) Telephone

Central Laboratory:

Plot No. 20/9, Site IV, Sahibabad Industrial Area, Sahibabad 201010 Regional Central

0-77 09 32

Offices:

: Manak Bhavan, 9 Bahadur Shah Zafar Marg, NEW DELHI 110002 : l/14 CIT SchemeVII M, V.I.P. Road, Maniktola, CALCUTTA 700054

323 76 17

*Eastern

337 86 62

Northern : SC0 335336, Sector 34-A, CHANDIGARH 160022

60 38 43

Southern

: C.I.T. Campus, IV Cross Road, CHENNAI 600113

235 23 15

TWestern : Manakalaya, E9, Behind Marol Telephone Exchange, Andheri (East), MUMBAI 400093

832 92 95

Branch Offices: ‘Pushpak’, Nurmohamed Shaikh Marg, Khanpur, AHMEDABAD 380001

550 13 48

* Peenya Industrial Area, 1st Stage, Bangalore-Tumkur Road, BANGALORE 560058

839 49 55

Gangotri Complex, 5th Floor, Bhadbhada Road, T.T. Nagar, BHOPAL 462003

55 40 21

Plot No. 62-63, Unit VI, Ganga Nagar, BHUBANESHWAR 751001

40 36 27

Kalaikathir Buildings, 670 Avinashi Road, COIMBATORE 641037

21 01 41

Plot No. 43, Sector 16 A. Mathura Road, FARIDABAD 121001

8-28 88 01

Savitri Complex, 116 G.T. Road, GHAZIABAD 201001

8-71 19 96

53/5 Ward No:29, R.G. Barua Road, 5th By-lane, GUWAHATI 791003

541137

5-8-56C, L.N. Gupta Marg, Nampally Station Road, HYDERABAD 500001

20 10 83

E-52, Chitaranjan Marg, C-Scheme, JAIPUR 302001

37 29 25

1171418 B, Sarvodaya Nagar, KANPUR 208005

21 68 76

Seth Bhawan, 2nd Floor, Behind Leela Cinema, Naval Kishore Road, LUCKNOW 226001

23.89 23

NIT Building, Second Floor, Gokulpat Market, NAGPUR 440010

52 51 71

Patliputra Industrial Estate, PATNA 800013

26 23 05

Institution of Engineers (India) Building 1332 Shivaji Nagar, PUNE 411005

32 36 35

T.C. No. 14/1421, University P.O. Palayam, THIRUVANANTHAPURAM

621 17

*Sales Office is at 5 Chowringhee Approach, PO. Princep Street, CALCUTTA 700072

695034

27 10 85

TSales Office is at Novelty Chambers, Grant Road, MUMBAI 400007

309 65 28

*Sales Offlce is at ‘F’ Block, Unity Building, Narashimaraja Square, BANGALORE 560002

222 39 71

Printed at Simco Printing Press. Delhi

AMENDMRNT NO. i

hO%%tiBER 1987

TO IS t I!)78 -

l982 SPECIFICATION FOR LINE PIPE ( Second Ret&ion)

&(

:

Page 6, claus 6.1 ) -

‘%J Ladk

Adysh

-

Substitute

the following

The ladle adysis

of the steel fir

grades shall conforta to the following: Grade r-----Carbon IUIU

Ladle And*, Pmmt ------------7 Manganese Su&hz %?----

Max 060 660 090 1.15

YSt 170 class I YSt 170 class II YSt 210

021 0*21 022

0.30 030 -

YSt 240

0.27

-

NOTE-

operations.

for the cxlsting

0 06 0% 0.05 0.05

different

Phosphorus F---A_ Min Max 0645 -

0645 Cl.080 0.04 064

Clau( II ) steel is rc-phoaphorized and ir beneficial for threadnut

6.1.1 The lade analysis of steel shall be carried out either by the method specifiedln IS : 228 ‘Methods for chemical analysis of steels and its relevant partror any other established instrumental/chemical method. In case of dispuk the procedure gi\ en in IS : 228 and its relevant parts shall be refree method. However, where the method is not given in IS : 2’28 andits relevant parts, the referee method shall be agreed to between the plrchascr and the manufacturer.” ( Page 6 claw 63.1~) -

Substitute ‘ 64.2

‘for ‘ 6.1.1 ‘.

(SMDC22’

RbCd

*-8hnco Printing Proor, Delhi, India

-A

NO. 2 MARCH 2003 To SPECIFICATION FOR LINE PIPES

AMENDMENT IS 1978:1982

( Second Reviswn ) ( Page 14, Table 2, for Nominal Size 250 mm and Wall thickness 6.4 mm ) — Substitute ‘42.09’ for ‘52.09’ in cohmn 4.

( MTD 19) Reprography [Jnit, [31S, New Delhi, India

. .,