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Designation: A 240/A 240M – 01
Standard Specification for
Heat-Resisting Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels1 This standard is issued under the fixed designation A 240/A 240M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense.
tions are expressed in both inch-pound and SI units. However, unless the order specifies the applicable “M” specification designation (SI units), the material shall be furnished in inch-pound units.
1. Scope 1.1 This specification2 covers chromium, chromium-nickel, and chromium-manganese-nickel stainless and heat-resisting steel plate, sheet, and strip for pressure vessels. 1.2 Some steels covered by this specification, especially the chromium steels, because of their particular alloy content and specialized properties, may require special care in their fabrication and welding. Specific procedures are of fundamental importance, and it is presupposed that all parameters will be in accordance with approved methods capable of producing the desired properties in the finished fabrication. 1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. 1.4 This specification and the applicable material specifica-
2. Referenced Documents 2.1 ASTM Standards: A 370 Test Methods and Definitions for Mechanical Testing of Steel Products3 A 480/A 480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip3 A 923 Test Methods for Detecting Detrimental Intermetallic Phase in Wrought Duplex Austenitic/Ferritic Stainless Steels3 E 112 Test Methods for Determining Average Grain Size4 E 527 Practice for Numbering Metals and Alloys (UNS)5 2.2 SAE Standard: J 1086 Practice for Numbering Metals and Alloys (UNS)6
1 This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloysand is the direct responsibility of Subcommittee A01.17 on Flat Stainless Steel Products. Current edition approved Mar. 10, 2001. Published April 2001. Originally published as A 240 – 40 T. Last previous edition A 240/A 240M – 00a. 2 For ASME Boiler and Pressure Vessel Code applications see related Specification SA-240 in Section II of that Code.
3
Annual Book of ASTM Standards, Vol 01.03. Annual Book of ASTM Standards, Vol 03.01. 5 Annual Book of ASTM Standards, Vol 01.01. 6 Available from Society of Automotive Engineers, 400 Commonwealth Dr., Warrendale, PA 15096. 4
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
1
A 240/A 240M 4. Chemical Composition
3. General Requirements 3.1 The following requirements for orders for material furnished under this specification shall conform to the applicable requirements of the current edition of Specification A 480/A 480M. 3.1.1 Definitions, 3.1.2 General requirements for delivery, 3.1.3 Ordering information, 3.1.4 Process, 3.1.5 Special tests, 3.1.6 Heat treatment, 3.1.7 Dimensions and permissible variations, 3.1.8 Workmanship, finish and appearance, 3.1.9 Number of tests/test methods, 3.1.10 Specimen preparation, 3.1.11 Retreatment, 3.1.12 Inspection, 3.1.13 Rejection and rehearing, 3.1.14 Material test report, 3.1.15 Certification, and 3.1.16 Packaging, marking, and loading.
4.1 The steel shall conform to the requirements as to chemical composition specified in Table 1, and shall conform to applicable requirements specified in Specification A 480/ A 480M. 5. Mechanical Properties 5.1 The material shall conform to the mechanical properties specified in Table 2. 5.2 When specified by the purchaser, Charpy impact tests shall be performed in accordance with Supplementary Requirement S1. 6. Materials for High-Temperature Service 6.1 The austenitic H Types shall conform to an average grain size of ASTM No. 7 or coarser as measured by Test Methods E 112. 6.2 Supplementary Requirement S2 shall be invoked when non-H grade austenitic stainless steels are ordered for ASME Code applications for service above 1000°F [540°C].
2
0.030 0.10
0.05–0.10
0.06–0.10
0.020 0.020 0.15 0.03 0.03 0.15 0.15 0.030 0.06
0.12 0.08 0.03 0.10 0.08 0.15 0.03 0.03 0.15 0.08 0.030 0.04–0.10 0.04–0.06 0.08 0.08 0.030 0.12 0.018 0.015 0.16–0.24 0.05–0.10 0.08 0.04–0.10 0.08
0.04–0.10
... 800G
800HG
...
904LG ... 201 ... ... ... 202 ... XM-19J
XM-31J XM-17J XM-18J ... XM-29J 301 301LG 301LNG 302 304 304L 304H ... 304N XM-21J 304LN 305 ... ... ... ... 309S 309HG 309CbG
309HCbG
310S 310HG 310CbG
N08367 N08800
N08810
N08811
N08904 N08926 S20100 S20103 S20153 S20161 S20200 S20400 S20910
S21400 S21600 S21603 S21800 S24000 S30100 S30103 S30153 S30200 S30400 S30403 S30409 S30415 S30451 S30452 S30453 S30500 S30600 S30601 S30615 S30815 S30908 S30909 S30940
S30941
S31008 S31009 S31040
3
0.08 0.04–0.10 0.08
0.07
...
N08020
CarbonD
TypeC
UNS DesignationB
2.00 2.00 2.00
2.00
14.0–16.0 7.5–9.0 7.5–9.0 7.0–9.0 11.5–14.5 2.00 2.00 2.00 2.00 2.00 2.00 2.00 0.80 2.00 2.00 2.00 2.00 2.00 0.50–0.80 2.00 0.80 2.00 2.00 2.00
2.00 2.00 5.5–7.5 5.5–7.5 6.4–7.5 4.0–6.0 7.5–10.0 7.0–9.0 4.0–6.0
1.50
1.50
2.00 1.50
2.00
Manganese
0.045 0.045 0.045
0.045
0.045 0.045 0.045 0.060 0.060 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.020 0.030 0.030 0.040 0.045 0.045 0.045
0.045 0.030 0.060 0.045 0.045 0.040 0.060 0.040 0.040
0.040
0.045
0.040 0.045
0.045
Sulfur
Silicon
Chromium
Nickel
0.030 0.030 0.030
0.030
0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.020 0.013 0.030 0.030 0.030 0.030 0.030
0.035 0.010 0.030 0.030 0.015 0.040 0.030 0.030 0.030
0.015
0.015
0.030 0.015
0.035
1.50 0.75 1.50
0.75
0.30–1.00 0.75 0.75 3.5–4.5 0.75 1.00 1.00 1.00 0.75 0.75 0.75 0.75 1.00–2.00 0.75 0.75 0.75 0.75 3.7–4.3 5.0–5.6 3.2–4.0 1.40–2.00 0.75 0.75 0.75
1.00 0.50 1.00 0.75 0.75 3.0–4.0 1.00 1.00 0.75
1.00
1.00
1.00 1.00
1.00
24.0–26.0 24.0–26.0 24.0–26.0
22.0–24.0
17.0–18.5 17.5–22.0 17.5–22.0 16.0–18.0 17.0–19.0 16.0–18.0 16.0–18.0 16.0–18.0 17.0–19.0 18.0–20.0 18.0–20.0 18.0–20.0 18.0–19.0 18.0–20.0 18.0–20.0 18.0–20.0 17.0–19.0 17.0–18.5 17.0–18.0 17.0–19.5 20.0–22.0 22.0–24.0 22.0–24.0 22.0–24.0
19.0–23.0 19.0–21.0 16.0–18.0 16.0–18.0 16.0–17.5 15.0–18.0 17.0–19.0 15.0–17.0 20.5–23.5
19.0–23.0
19.0–23.0
20.0–22.0 19.0–23.0
19.0–21.0
19.0–22.0 19.0–22.0 19.0–22.0
12.0–16.0
1.00 5.0–7.0 5.0–7.0 8.0–9.0 2.3–3.7 6.0–8.0 6.0–8.0 6.0–8.0 8.0–10.0 8.0–10.5 8.0–12.0 8.0–10.5 9.0–10.0 8.0–10.5 8.0–10.5 8.0–12.0 10.5–13.0 14.0–15.5 17.0–18.0 13.5–16.0 10.0–12.0 12.0–15.0 12.0–15.0 12.0–16.0
23.0–28.0 24.0–26.0 3.5–5.5 3.5–5.5 4.0–5.0 4.0–6.0 4.0–6.0 1.50–3.00 11.5–13.5
30.0–35.0
30.0–35.0
23.5–25.5 30.0–35.0
32.0–38.0
Austenitic (Chromium-Nickel) (Chromium-Manganese-Nickel)
Phosphorus
TABLE 1 Chemical Composition Requirements, %A
... ... ...
...
... 2.00–3.00 2.00–3.00 ... ... ... ... ... ... ... ... ... ... ... ... ... ... 0.20 0.20 ... ... ... ... ...
4.0–5.0 6.0–7.0 ... ... ... ... ... ... 1.50–3.00
...
...
6.0–7.0 ...
2.00–3.00
Molybdenum
... ... ...
...
0.35 min 0.25–0.50 0.25–0.50 0.08–0.18 0.20–0.40 0.10 0.20 0.07–0.20 0.10 0.10 0.10 ... 0.12–0.18 0.10–0.16 0.16–0.30 0.10–0.16 ... ... 0.05 ... 0.14–0.20 ... ... ...
0.10 0.15–0.25 0.25 0.25 0.10–0.25 0.08–0.20 0.25 0.15–0.30 0.20–0.40
...
...
0.18–0.25 ...
...
Nitrogen
... ... ...
...
... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 0.50 0.35 ... ... ... ... ...
1.0–2.0 0.5–1.5 ... ... 1.00 ... ... ... ...
0.75
0.75
0.75 0.75
3.0–4.0
Copper
Cb 83C min, 1.00 max ... FeH 39.5 min Al 0.15–0.60 Ti 0.15–0.60 FeH 39.5 min Al 0.15–0.60 Ti 0.15–0.60 FeH 39.5 min TiI 0.15–0.60 AlI 0.15–0.60 ... ... ... ... ... ... ... ... Cb 0.10–0.30 V 0.10–0.30 ... ... ... ... ... ... ... ... ... ... ... ... Ce 0.03–0.08 ... ... ... ... ... ... Al 0.80–1.50 Ce 0.03–0.08 ... ... Cb 103C min, 1.10 max Cb 103C min, 1.10 max ... ... Cb 103C min, 1.10 max
Other ElementsE,F
A 240/A 240M
0.04–0.10
0.020 0.020 0.030 0.08 0.030 0.04–0.10 0.08
0.08
0.07 0.020 0.04–0.08
0.08
310HCbG
310 MoLNG ... ... 316 316L 316H 316TiG
316CbG
316N 316LN 317 317L 317LMG 317LMNG 317LNG ... 321
321H
... ... ...
334G
... 347
347H
348
348H
...
... ... XM-15J ...
... ... ... ...
S31041
S31050 S31254 S31266 S31600 S31603 S31609 S31635
S31640
S31651 S31653 S31700 S31703 S31725 S31726 S31753 S32050 S32100
S32109
S32615 S32654 S33228
S33400
S34565 S34700
4
S34709
S34800
S34809
S35045
S35135 S35315 S38100 S38815
S31200 S31260 S31803 S32001
0.030 0.03 0.030 0.030
0.08 0.04–0.08 0.08 0.030
0.06–0.10
0.04–0.10
0.08
0.04–0.10
0.030 0.08
0.04–0.10
0.08 0.030 0.08 0.030 0.030 0.030 0.030 0.030 0.08
CarbonD
TypeC
UNS DesignationB
2.00 1.00 2.00 4.0–6.0
1.00 2.00 2.00 2.00
1.50
2.00
2.00
2.00
5.0–7.0 2.00
1.00
2.00 2.0–4.0 1.00
2.00
2.00 2.00 2.00 2.00 2.00 2.00 2.00 1.50 2.00
2.00
2.00 1.00 2.0–4.0 2.00 2.00 2.00 2.00
2.00
Manganese
0.045 0.030 0.030 0.040
0.045 0.040 0.030 0.040
0.045
0.045
0.045
0.045
0.030 0.045
0.030
0.045 0.030 0.020
0.045
0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.035 0.045
0.045
0.030 0.030 0.035 0.045 0.045 0.045 0.045
0.045
Phosphorus
0.030 0.030 0.020 0.030
0.015 0.030 0.030 0.020
0.015
0.030
0.030
0.030
0.010 0.030
0.015
0.030 0.005 0.015
0.030
0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.020 0.030
0.030
0.010 0.010 0.020 0.030 0.030 0.030 0.030
0.030
Sulfur
20.0–25.0 24.0–26.0 17.0–19.0 13.0–15.0
25.0–29.0
17.0–19.0
17.0–19.0
17.0–19.0
23.0–25.0 17.0–19.0
18.0–20.0
16.5–19.5 24.0–25.0 26.0–28.0
17.0–19.0
16.0–18.0 16.0–18.0 18.0–20.0 18.0–20.0 18.0–20.0 17.0–20.0 18.0–20.0 22.0–24.0 17.0–19.0
16.0–18.0
24.0–26.0 19.5–20.5 23.0–25.0 16.0–18.0 16.0–18.0 16.0–18.0 16.0–18.0
24.0–26.0
Chromium
1.00 0.75 1.00 1.00
24.0–26.0 24.0–26.0 21.0–23.0 19.5–21.5
Duplex (Austenitic-Ferritic)
0.60–1.00 1.20–2.00 1.50–2.50 5.5–6.5
1.00
0.75
0.75
0.75
1.00 0.75
1.00
4.8–6.0 0.50 0.30
0.75
0.75 0.75 0.75 0.75 0.75 0.75 0.75 1.00 0.75
0.75
0.50 0.80 1.00 0.75 0.75 0.75 0.75
0.75
Silicon
TABLE 1 Continued
5.5–6.5 5.5–7.5 4.5–6.5 1.00–3.00
30.0–38.0 34.0–36.0 17.5–18.5 13.0–17.0
32.0–37.0
9.0–13.0
9.0–13.0
9.0–13.0
16.0–18.0 9.0–13.0
19.0–21.0
19.0–22.0 21.0–23.0 31.0–33.0
9.0–12.0
10.0–14.0 10.0–14.0 11.0–15.0 11.0–15.0 13.5–17.5 13.5–17.5 11.0–15.0 20.0–23.0 9.0–12.0
10.0–14.0
20.5–23.5 17.5–18.5 21.0–24.0 10.0–14.0 10.0–14.0 10.0–14.0 10.0–14.0
19.0–22.0
Nickel
1.20–2.00 2.5–3.5 2.5–3.5 0.60
4.0–4.8 ... ... 0.75–1.50
...
...
...
...
4.0–5.0 ...
...
0.30–1.50 7.0–8.0 ...
...
2.00–3.00 2.00–3.00 3.0–4.0 3.0–4.0 4.0–5.0 4.0–5.0 3.0–4.0 6.0–6.8 ...
2.00–3.00
1.60–2.60 6.0–6.5 5.2–6.2 2.00–3.00 2.00–3.00 2.00–3.00 2.00–3.00
...
Molybdenum
0.14–0.20 0.10–0.30 0.08–0.20 0.05–0.17
... 0.12–0.18 ... ...
...
...
...
...
0.40–0.60 ...
...
... 0.45–0.55 ...
...
0.10–0.16 0.10–0.16 0.10 0.10 0.20 0.10–0.20 0.10–0.22 0.21–0.32 0.10
0.10
0.09–0.15 0.18–0.22 0.35–0.60 0.10 0.10 ... 0.10
...
Nitrogen
... 0.20–0.80 ... 1.00
0.75 ... ... 0.75–1.50
0.75
...
...
...
... ...
...
1.50–2.50 0.30–0.60 ...
...
... ... ... ... ... ... ... 0.40 ...
...
... 0.50–1.00 1.00–2.50 ... ... ... ...
...
Copper
... W 0.10–0.50 ... ...
Cb 103C min, 1.10 max ... ... W 1.50–2.50 ... ... ... Ti 5 3 (C + N) min, 0.70 max Cb 10 3 C min, 1.10 max ... ... ... ... ... ... ... ... Ti 5 3 (C + N) min, 0.70 max Ti 4 3 (C + N) min, 0.70 max ... ... Ce 0.05–0.10 Cb 0.6–1.0 Al 0.025 Al 0.15–0.60 Ti 0.15–0.60 Cb 0.10 Cb 10 3 C min, 1.00 max Cb 8 3 C min, 1.00 max (Cb + Ta) 103C min, 1.00 max Ta 0.10 Co 0.20 (Cb + Ta) 83C min, 1.00 max Ta 0.10 Co 0.20 Al 0.15–0.60 Ti 0.15–0.60 Ti 0.40–1.00 Ce 0.03–0.10 ... Al 0.30
Other ElementsE,F
A 240/A 240M
... 410 ... 410S ...
... ... ... 429G 430 439
434 436
...
...
444
S40977 S41000 S41003 S41008 S41045
S41050 S41500M S42035 S42900 S43000 S43035
S43400 S43600
S43932
S43940
S44400
...
S40930
...
...
S40920
S40975
405 409L ...
S40500 S40900L S40910
...
...
S32803
S40945
0.030 0.030 0.030 0.04 0.030 0.030 0.08 0.030
2205G 2304G ... 255G 2507G ... 329 ...
S32205 S32304 S32520 S32550 S32750 S32760K S32900 S32950
5
0.025
0.030
0.030
0.12 0.12
0.04 0.05 0.08 0.12 0.12 0.030
0.030 0.08–0.15 0.030 0.08 0.030
0.030
0.030
0.030
1.00
1.00
1.00
1.00 1.00
1.00 0.50–1.00 1.00 1.00 1.00 1.00
1.50 1.00 1.50 1.00 1.00
1.00
1.00
1.00
1.00
1.00
0.030
0.030
1.00
0.50
2.00 2.50 1.50 1.50 1.20 1.00 1.00 2.00
Manganese
0.08
0.015
CarbonD
TypeC
UNS DesignationB
0.040
0.040
0.040
0.040 0.040
0.045 0.030 0.045 0.040 0.040 0.040
0.040 0.040 0.040 0.040 0.040
0.040
0.040
0.040
0.040
0.040
0.040
0.020
0.030 0.040 0.035 0.040 0.035 0.030 0.040 0.035
Phosphorus
0.030
0.015
0.030
0.030 0.030
0.030 0.030 0.030 0.030 0.030 0.030
0.015 0.030 0.030 0.030 0.030
0.030
0.030
0.020
0.020
0.020
0.030
1.00 1.00 0.80 1.00 0.80 1.00 0.75 0.60
Silicon 22.0–23.0 21.5–24.5 24.0–26.0 24.0–27.0 24.0–26.0 24.0–26.0 23.0–28.0 26.0–29.0
Chromium
TABLE 1 Continued
1.00
1.00
1.00
1.00 1.00
1.00 0.60 1.00 1.00 1.00 1.00
1.00 1.00 1.00 1.00 1.00
1.00
1.00
1.00
1.00
1.00
1.00
0.55
17.5–19.5
17.5–18.5
17.0–19.0
16.0–18.0 16.0–18.0
10.5–12.5 11.5–14.0 13.5–15.5 14.0–16.0 16.0–18.0 17.0–19.0
10.5–12.5 11.5–13.5 10.5–12.5 11.5–13.5 12.0–13.0
10.5–11.7
10.5–11.7
10.5–11.7
10.5–11.7
10.5–11.7
11.5–14.5
28.0–29.0
Ferritic or Martensitic (Chromium) 0.0035
0.020 0.030 0.020 0.030 0.020 0.010 0.030 0.010
Sulfur
1.00
...
0.50
... ...
0.60–1.10 3.5–5.5 1.0–2.5 ... 0.75 0.50
0.30–1.00 0.75 1.50 0.60 0.50
0.50–1.00
0.50
0.50
0.50
0.50
0.60
3.0–4.0
4.5–6.5 3.0–5.5 5.5–8.0 4.5–6.5 6.0–8.0 6.0–8.0 2.0–5.00 3.5–5.2
Nickel
1.75–2.50
...
...
0.75–1.25 0.75–1.25
... 0.50–1.00 0.2–1.2 ... ... ...
... ... ... ... ...
...
...
...
...
...
...
1.80–2.50
3.0–3.5 0.05–0.60 3.0–4.0 2.9–3.9 3.0–5.0 3.0–4.0 1.00–2.00 1.00–2.50
Molybdenum
0.035
...
0.030
... ...
0.10 ... ... ... ... 0.030
0.030 ... 0.030 ... 0.030
0.030
0.030
0.030
0.030
0.030
...
0.020 (C+N) 0.030
0.14–0.20 0.05–0.20 0.20–0.35 0.10–0.25 0.24–0.32 0.20–0.30 ... 0.15–0.35
Nitrogen
...
...
...
... ...
... ... ... ... ... ...
... ... ... ... ...
...
...
...
...
...
...
...
... 0.05–0.60 0.50–2.00 1.50–2.50 0.50 0.50–1.00 ... ...
Copper
Ti 6x(C+N) min, 0.50 max; Cb 0.17 Ti 8x(C+N) min, Ti 0.15–0.50; Cb 0.10 (Ti+Cb) [0.08+8 3(C+N)] min, 0.75 max; Ti 0.05 min Cb 0.18–0.40 Ti 0.05–0.20 Ti 63(C+N) min, 0.75 max ... ... ... ... Cb 93(C+N) min, 0.60 max ... ... Ti 0.30–0.50 ... ... Ti [0.20+4(C+N)] min, 1.10 max; Al 0.15 ... Cb 5xC min, 0.80 max (Ti+Cb) [0.20+4(C+N)] min, 0.75 max; Al 0.15 Ti 0.10–0.60 Cb [0.30+(33C)] min (Ti+Cb)[0.20+4(C+N)] min, 0.80 max
Cb 123(C+N) min, 0.15–0.50 Al 0.10–0.30
... ... ... W 0.50–1.00 ... ...
...
Other ElementsE,F
A 240/A 240M
...
...
... ...
S44635
S44660
S44700 S44735
6
0.010 0.030
0.010 0.030
0.030
0.30 1.00
0.30 1.00
1.00
1.00
0.40
0.75
1.00
Manganese
0.025 0.040
0.025 0.040
0.040
0.040
0.020
0.040
0.040
Phosphorus
0.020 0.030
0.020 0.030
0.030
0.030
0.020
0.020
0.012
Sulfur
0.20 1.00
0.20 1.00
1.00
0.75
0.40
0.75
1.00
Silicon
28.0–30.0 18.0–20.0
28.0–30.0 28.0–30.0
25.0–28.0
24.5–26.0
25.0–27.5
25.0–27.0
19.0–21.0
Chromium
TABLE 1 Continued
2.00–2.50 0.50
0.15 1.00
1.0–3.5
3.5–4.5
0.50
0.50
0.60
Nickel
3.5–4.2 ...
3.5–4.2 3.6–4.2
3.0–4.0
3.5–4.5
0.75–1.50
0.75–1.50
...
Molybdenum
0.020 0.030
0.020 0.045
0.040
0.035
0.015N
0.04
0.03
Nitrogen
0.15 ...
0.15 ...
...
...
0.20
0.20
0.30–0.60
Copper
Cb 103(C+N) min, 0.80 max Ti 0.20–1.00; Ti 7(C+N) min Cb 0.05–0.20 (Ni + Cu) 0.50 (Ti+Cb) [0.20+4 (C+N)] min, 0.80 max (Ti+Cb) 0.20 − 1.00, Ti + Cb 63(C+N) min (C+N) 0.025 (Ti+Cb) 0.20–1.00, (Ti+Cb) 63 (C+N) min (C+N) 0.025 Ti 0.07–0.30 Cb 0.10–0.60 (Ti+Cb) [0.20+4 (C+N)] min, 0.80 max
Other ElementsE,F
B
Maximum, unless range or minimum is indicated. Designation established in accordance with Practice E 527 and SAE J 1086. C Unless otherwise indicated, a grade designation originally assigned by the American Iron and Steel Institute (AISI). D Carbon analysis shall be reported to nearest 0.01 % except for the low-carbon types, which shall be reported to nearest 0.001 %. E The terms Columbium (Cb) and Niobium (Nb) both relate to the same element. F When two minimums or two maximums are listed for a single type, as in the case of both a value from a formula and an absolute value, the higher minimum or lower maximum shall apply. G Common name, not a trademark, widely used, not associated with any one producer. H Iron shall be determined arithmetically by difference of 100 minus the sum of the other specified elements. I (Al + Ti) 0.85–1.20. J Naming system developed and applied by ASTM. K Cr + 3.3 Mo + 16 N = 40 min. L S40900 (Type 409) has been replaced by S40910, S40920, and S40930. Unless otherwise specified in the ordering information, an order specifying S40900 or Type 409 shall be satisfied by any one of S40910, S40920, or S40930 at the option of the seller. Material meeting the requirements of S40910, S40920, or S40930, may at the option of the manufacturer be certified as S40900. M Plate version of CA-6NM. N Product (check or verification) analysis tolerance over the maximum limit for C and N in XM-27 shall be 0.002 %.
A
... ...
0.010N
XM-27J
S44627
S44800 S46800
0.06
XM-33J
S44626
0.025
0.020
...
S44500
CarbonD
TypeC
UNS DesignationB
A 240/A 240M
N08020 N08367 Sheet and Strip Plate N08800 N08810 N08811 N08904 N08926 S20100 S20100 S20103 S20153 S20161 S20200 S20400 S30100 S30103 S30153 S30200 S30400 S30403 S30409 S30415 S30451 S30453 S30500 S30600 S30601 S30615 S30815 S30908 S30909 S30940 S30941 S31008 S31009 S31040 S31041 S31254 Sheet and Strip Plate S31266 S31600 S31603 S31653 S31609 S31635 S31640 S31651 S31700
UNS Designation
690 655 520 450 450 490 650 515 655 655 655 860 620 655 515 550 550 515 515 485 515 600 550 515 485 540 540 620 600 515 515 515 515 515 515 515 515 690 655 750 515 485 515 515 515 515 550 515
100 95 75 65 65 71 94 75 95 95 95 125 90 95 75 80 80 75 75 70 75 87 80 75 70 78 78 90 87 75 75 75 75 75 75 75 75 100 95 109 75 70 75 75 75 75 80 75
800 800HF ... 904LF ... 201-1I 201-2I 201LF 201LNF ... 202 ... 301 301LF 301LNF 302 304 304L 304H ... 304N 304LN 305 ... ... ... ... 309S 309HF 309CbF 309HCbF 310S 310HF 310CbF 310HCbF
... 316 316L 316LN 316H 316TiF 316CbF 316N 317
F
550
7 45 45 61 30 25 30 30 30 30 35 30
45 45 30G 25G 25 31 43 38 45 38 45 50 38 48 30 32 35 30 30 25 30 42 35 30 25 35 37 40 45 30 30 30 30 30 30 30 30
35
310 310 420 205 170 205 205 205 205 240 205
310 310 205G 170G 170 220 295 260 310 260 310 345 260 330 205 220 240 205 205 170 205 290 240 205 170 240 255 275 310 205 205 205 205 205 205 205 205
240
Austenitic (Chromium-Nickel) (Chromium-Manganese-Nickel)
MPa
ksi
ksi
MPa
Yield Strength,B min
Tensile Strength, min
80
...
TypeA
35.0 35.0 35.0 40.0 40.0 40.0 40.0 40.0 30.0 35.0 35.0
30.0 30.0 30.0H 30.0 30.0 35.0 35.0 40.0 40.0 40.0 45.0 40.0 40.0 35.0 40.0 45.0 45.0 40.0 40.0 40.0 40.0 40.0 30.0 40.0 40.0 40.0 30.0 35.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0
30.0E
Elongation in 2 in. or 50 mm, min, %
TABLE 2 Mechanical Test Requirements
223 223 ... 217 217 217 217 217 217 217 217
... 241 ... ... ... ... ... ... 217 217 241 255 241 241 217 241 241 201 201 201 201 217 201 201 183 ... ... 217 217 217 217 217 217 217 217 217 217
217
Brinell
96 96 ... 95 95 95 95 95 95 95 95
100 ... ... ... ... 90 ... 95 100 95 100 25J ... 100 95 100 100 92 92 92 92 95 92 92 88 ... ... 95 95 95 95 95 95 95 95 95 95
95
Rockwell B
Hardness, maxC
not not not not not not not not not not not
required required required required required required required required required required required
not required not required not required not required not required not required not required ... ... not required not required not required ... not required not required not required not required not required not required not required not required not required not required not required not required ... not required not required ... not required not required not required not required not required not required not required not required
not required
Cold Bend°D
A 240/A 240M
8
... ... ... ... 2205F 2304F ... 255F
S31200 S31260 S31803 S32001 S32205 S32304 S32520 S32550
XM-31
L
XM-29L
XM-19
L
XM-18L
...
and Strip
and Strip
and Strip
and Strip
310 MoLN t # 0.25 in. t > 0.25 in. XM-17J
F
100 100 90 90 90 87 112 110
125 105 95
100 100
105 100
100 90
100 90
84 78
90 85
80 75 94 75 78
... ... ... XM-15L ... XM-21L
690 690 620 620 620 600 770 760
860 725 655
690 690
725 690
690 620
690 620
580 540
620 585
550 515 650 515 540
485 380 345
415 380
415 380
415 345
415 345
270 255
345 275
205 205 270 205 255
205 240 205 240 330 205 205 220 430 185 170 415 205 205 205 205 170
MPa
65 70 65 65 65 58 80 80
450 485 450 450 450 400 550 550
Duplex (Austenitic-Ferritic)
70 55 50
60 55
60 55
60 50
60 50
39 37
50 40
30 30 39 30 37
30 35 30 35 48 30 30 32 62 27 25 60 30 30 30 30 25
ksi
515 550 515 550 675 515 515 550 750 500 485 795 515 515 515 515 485
MPa
ksi 75 80 75 80 98 75 75 80 109 73 70 115 75 75 75 75 70
Yield Strength,B min
TABLE 2 Continued Tensile Strength, min
317LMF 317LMNF 317L 317LN ... 321 321H ... ... ... 334F ... 347 347H 348 348H ...
TypeA
S21600 Sheet Plate S21603 Sheet Plate S20910 Sheet Plate S24000 Sheet Plate S21400 Sheet Strip S21800
S31725 S31726 S31703 S31753 S32050 S32100 S32109 S32615K S32654 S33228 S33400 S34565 S34700 S34709 S34800 S34809 S35045 S35135 Sheet and Strip Plate S35315 S38100 S38815 S30452 Sheet and Strip Plate S31050
UNS Designation
25.0 20.0 25.0 25.0 25.0 25.0 25.0 15.0
40.0 40.0 35.0
40.0 40.0
30.0 35.0
40.0 40.0
40.0 40.0
25 25
30.0 30.0
30.0 30.0 40.0 40.0 30.0
40.0 40.0 40.0 40.0 40.0 40.0 40.0 25 40.0 30.0 30 35.0 40.0 40.0 40.0 40.0 35.0
Elongation in 2 in. or 50 mm, min, %
293 290 293 ... 293 290 310 302
... ... 241
241 241
241 241
241 241
241 241
217 217
241 241
... ... 217 217 ...
217 223 217 217 250 217 217 ... 250 217 ... 241 201 201 201 201 ...
Brinell
31J ... 31J 25G 31J 32J ... 32J
... ... 100
100 100
100 100
100 100
100 100
95 95
100 100
... ... 95 95 ...
95 96 95 95 ... 95 95 ... ... 95 92 100 92 92 92 92 ...
Rockwell B
Hardness, maxC
required required required required required
required required required required required required required required required required required required required required required required required
not required ... not required not required not required not required not required not required
not required not required not required
not required not required
not required not required
not required not required
not required not required
not required not required
not required not required
not not not not not
not not not not not not not not not not not not not not not not not
Cold Bend°D
A 240/A 240M
2507 ... 329 ...
... 405 409N ... ... ... ... ... ... 410 ... 410S ... ... ... ... 429F 430 439 434 436 ... ...
S32803 S40500 S40900N S40910 S40920 S40930 S40945 S40975 S40977 S41000 S41003 S41008 S41045 S41050 S41500 S42035 S42900 S43000 S43035 S43400 S43600 S43932 S43940
F
TypeA
S32750 S32760 S32900 S32950M
UNS Designation
600 415 380 380 380 380 415 450 450 455 415 380 415 795 550 450 450 415 450 450 415 430
55 55 55 55 60 65 65 66 60 55 60 115 80 65 65 60 65 65 60 62
795 750 620 690
87 60
116 108 90 100
550 550 485 485
25 25 25 30 40 41 30 40 30 30 30 90 55 30 30 30 35 35 30 36
72 25 170 170 170 205 275 280 205 275 205 205 205 620 380 205 205 205 240 240 205 250
500 170
Ferritic or Martensitic (Chromium)
80 80 70 70
MPa
ksi
ksi
MPa
Yield Strength,B min
TABLE 2 Continued Tensile Strength, min
20 20 20 22.0 20.0 18 20.0 18 22.0O 22.0 22.0 15.0 16 22.0O 22.0O 22.0 22.0 22.0 22.0 18
16.0 20.0
15.0 25.0 15.0 15.0
Elongation in 2 in. or 50 mm, min, %
179 179 179 ... 197 180 217 223 183 ... 183 302 180 183 183 183 ... ... 183 180
241 179
310 270 269 293
Brinell
88 88 88 80 92 88 96 20J 89 80 89 32J 88 89 89 89 89 89 89 88
100 88
32J ... 28J 32J
Rockwell B
Hardness, maxC
required required required required
9
not
not not
not
not
180 180 180 180 180 reguired 180 reguired 180 180 180 required reguired 180 180 180 180 180 180 reguired
not required 180
not not not not
Cold Bend°D
A 240/A 240M
10
... ... XM-33L XM-27L ... ... ... ... ... ...
TypeA
60 62 68 65 90 85 80 80 80 60
415 427 470 450 620 585 550 550 550 415
40 30 45 40 75 65 60 60 60 30
275 205 310 275 515 450 415 415 415 205
MPa
ksi
ksi
MPa
Yield Strength,B min
TABLE 2 Continued Tensile Strength, min
20.0 22 20.0 22.0 20.0 18.0 20.0 18.0 20.0 22
Elongation in 2 in. or 50 mm, min, % 217 ... 217 187 269 241 223 255 223 ...
Brinell
96 83 96 90 28F 100 20F 25F 20F 90
Rockwell B
Hardness, maxC
180 180 180 180 180 180 180 180 180 180
Cold Bend°D
B
Unless otherwise indicated, a grade designation originally assigned by the American Iron and Steel Institute (AISI). Yield strength shall be determined by the offset method at 0.2 % in accordance with Test Methods and Definitions A 370. Unless otherwise specified (see Specification A 480/A 480M, paragraph 4.1.11, Ordering Information), an alternative method of determining yield strength may be based on total extension under load of 0.5 %. C Either Brinell or Rockwell B Hardness is permissible. D Bend tests are not required for chromium steels (ferritic or martensitic) thicker than 1 in. [25 mm] or for any austenitic or duplex (austenitic-ferritic) stainless steels regardless of thickness. E Elongation for thickness, less than 0.015 in. (0.38 mm) shall be 20 % minimum, in 1 in. (25.4 mm). F Common name, not a trademark, widely used, not associated with any one producer. G Yield strength requirements shall not apply to material under 0.020 in [0.50 mm] in thickness. H Not applicable for thicknesses under 0.010 in. [0.25 mm]. I Type 201 is generally produced with a chemical composition balanced for rich side (Type 201-1) or lean side (Type 201-2) austenite stability depending on the properties required for specific applications. J Rockwell C scale. K For S32615, the grain size as determined in accordance with the Test Methods E 112, Comparison Method, Plate II, shall be No. 3 or finer. L Naming system developed and applied by ASTM. M Prior to Specification A 240 – 89b, the tensile value for S32950 was 90 ksi. N S40900 (Type 409) has been replaced by S40910, S40920, and S40930. Unless otherwise specified in the ordering information, an order specifying S40900 or Type 409 shall be satisfied by any one of S40910, S40920, or S40930 at the option of the seller. Material meeting the requirements of S40910, S40920, or S40930, may at the option of the manufacturer be certified as S40900. O Material 0.050 in (1.27 mm) and under in thickness shall have a minimum elongation of 20 %.
A
S44400 S44500 S44626 S44627 S44635 S44660 S44700 S44735 S44800 S46800
UNS Designation
A 240/A 240M
A 240/A 240M SUPPLEMENTARY REQUIREMENTS A supplementary requirement shall apply only when specified in the purchase order. S1. Charpy Impact Testing of Plate S1.1 Charpy impact tests shall be conducted in accordance with Test Methods and Definitions A 370. S1.2 Number of Tests —One impact test (3 specimens) shall be made from one plate per heat treatment lot in the final heat treated condition. S1.3 Orientation of Test Specimens —Unless specified as transverse specimens (long axis of the specimen transverse to the final rolling direction, root of the notch perpendicular to the rolling face) on the purchase order, the orientation of the specimens shall be longitudinal (long axis of the specimen parallel to the final rolling direction, root of the notch perpendicular to the rolling face). The manufacturer is permitted to test transverse specimens provided that such tests meet the acceptance criteria applicable to longitudinal specimens. Unless otherwise specified on the purchase order, the specimens shall be taken so as to include the mid-thickness of the product. S1.4 Test Temperature —The purchaser shall specify the test temperature. The manufacturer is permitted to test specimens at a temperature lower than that specified by the purchaser, provided that such tests shall meet the acceptance criteria applicable to specimens tested at the specified temperature (see Note ).
steel covered. It may be economical for the Charpy impact tests performed on duplex stainless steels covered in both Specification A 240 and Test Methods A 923 to be performed at the lower of the temperatures specified by this supplementary requirement and Test Methods A 923 Method B, with measurement of both lateral expansion and impact energy.
S1.5 Acceptance Limit —Unless otherwise specified on the purchase order, each of the three specimens tested shall show a lateral expansion opposite the notch of not less than 0.015 in. [0.38 mm]. S1.6 Records —The recorded results shall include the specimen orientation, specimen size, test temperature, absorbed energy values (if required), and lateral expansion opposite the notch. S2. Materials for High-Temperature Service S2.1 Unless an H grade has been ordered, this supplementary requirement shall be specified for ASME Code applications for service above 1000°F [540°C]. S2.2 The user is permitted to use an austenitic stainless steel as the corresponding H grade when the material meets all requirements of the H grade including chemistry, annealing temperature, and grain size (see Section 6). S2.3 The user is permitted to use an L grade austenitic stainless steel for service above 1000°F [540°C], subject to the applicable allowable stress table of the ASME Code, when the material meets all requirements of this specification and the grain size is ASTM No. 7 or coarser as determined in accordance with Test Method E 112. The grain size shall be reported on a Certified Test Report.
NOTE —Test Methods A 923, Method B, applicable to some duplex (austenitic-ferritic) stainless steels as listed in Test Methods A 923, uses a Charpy impact test for the purpose of determining the absence of detrimental intermetallic phases. Method B specifies a test temperature and acceptance criterion, expressed as impact energy, for each type of
The American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. This standard is copyrighted by ASTM, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above address or at 610-832-9585 (phone), 610-832-9555 (fax), or [email protected] (e-mail); or through the ASTM website (www.astm.org).
11
Standard Specification for
Heat-Resisting Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels1 This standard is issued under the fixed designation A 240/A 240M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense.
tions are expressed in both inch-pound and SI units. However, unless the order specifies the applicable “M” specification designation (SI units), the material shall be furnished in inch-pound units.
1. Scope 1.1 This specification2 covers chromium, chromium-nickel, and chromium-manganese-nickel stainless and heat-resisting steel plate, sheet, and strip for pressure vessels. 1.2 Some steels covered by this specification, especially the chromium steels, because of their particular alloy content and specialized properties, may require special care in their fabrication and welding. Specific procedures are of fundamental importance, and it is presupposed that all parameters will be in accordance with approved methods capable of producing the desired properties in the finished fabrication. 1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. 1.4 This specification and the applicable material specifica-
2. Referenced Documents 2.1 ASTM Standards: A 370 Test Methods and Definitions for Mechanical Testing of Steel Products3 A 480/A 480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip3 A 923 Test Methods for Detecting Detrimental Intermetallic Phase in Wrought Duplex Austenitic/Ferritic Stainless Steels3 E 112 Test Methods for Determining Average Grain Size4 E 527 Practice for Numbering Metals and Alloys (UNS)5 2.2 SAE Standard: J 1086 Practice for Numbering Metals and Alloys (UNS)6
1 This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloysand is the direct responsibility of Subcommittee A01.17 on Flat Stainless Steel Products. Current edition approved Mar. 10, 2001. Published April 2001. Originally published as A 240 – 40 T. Last previous edition A 240/A 240M – 00a. 2 For ASME Boiler and Pressure Vessel Code applications see related Specification SA-240 in Section II of that Code.
3
Annual Book of ASTM Standards, Vol 01.03. Annual Book of ASTM Standards, Vol 03.01. 5 Annual Book of ASTM Standards, Vol 01.01. 6 Available from Society of Automotive Engineers, 400 Commonwealth Dr., Warrendale, PA 15096. 4
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
1
A 240/A 240M 4. Chemical Composition
3. General Requirements 3.1 The following requirements for orders for material furnished under this specification shall conform to the applicable requirements of the current edition of Specification A 480/A 480M. 3.1.1 Definitions, 3.1.2 General requirements for delivery, 3.1.3 Ordering information, 3.1.4 Process, 3.1.5 Special tests, 3.1.6 Heat treatment, 3.1.7 Dimensions and permissible variations, 3.1.8 Workmanship, finish and appearance, 3.1.9 Number of tests/test methods, 3.1.10 Specimen preparation, 3.1.11 Retreatment, 3.1.12 Inspection, 3.1.13 Rejection and rehearing, 3.1.14 Material test report, 3.1.15 Certification, and 3.1.16 Packaging, marking, and loading.
4.1 The steel shall conform to the requirements as to chemical composition specified in Table 1, and shall conform to applicable requirements specified in Specification A 480/ A 480M. 5. Mechanical Properties 5.1 The material shall conform to the mechanical properties specified in Table 2. 5.2 When specified by the purchaser, Charpy impact tests shall be performed in accordance with Supplementary Requirement S1. 6. Materials for High-Temperature Service 6.1 The austenitic H Types shall conform to an average grain size of ASTM No. 7 or coarser as measured by Test Methods E 112. 6.2 Supplementary Requirement S2 shall be invoked when non-H grade austenitic stainless steels are ordered for ASME Code applications for service above 1000°F [540°C].
2
0.030 0.10
0.05–0.10
0.06–0.10
0.020 0.020 0.15 0.03 0.03 0.15 0.15 0.030 0.06
0.12 0.08 0.03 0.10 0.08 0.15 0.03 0.03 0.15 0.08 0.030 0.04–0.10 0.04–0.06 0.08 0.08 0.030 0.12 0.018 0.015 0.16–0.24 0.05–0.10 0.08 0.04–0.10 0.08
0.04–0.10
... 800G
800HG
...
904LG ... 201 ... ... ... 202 ... XM-19J
XM-31J XM-17J XM-18J ... XM-29J 301 301LG 301LNG 302 304 304L 304H ... 304N XM-21J 304LN 305 ... ... ... ... 309S 309HG 309CbG
309HCbG
310S 310HG 310CbG
N08367 N08800
N08810
N08811
N08904 N08926 S20100 S20103 S20153 S20161 S20200 S20400 S20910
S21400 S21600 S21603 S21800 S24000 S30100 S30103 S30153 S30200 S30400 S30403 S30409 S30415 S30451 S30452 S30453 S30500 S30600 S30601 S30615 S30815 S30908 S30909 S30940
S30941
S31008 S31009 S31040
3
0.08 0.04–0.10 0.08
0.07
...
N08020
CarbonD
TypeC
UNS DesignationB
2.00 2.00 2.00
2.00
14.0–16.0 7.5–9.0 7.5–9.0 7.0–9.0 11.5–14.5 2.00 2.00 2.00 2.00 2.00 2.00 2.00 0.80 2.00 2.00 2.00 2.00 2.00 0.50–0.80 2.00 0.80 2.00 2.00 2.00
2.00 2.00 5.5–7.5 5.5–7.5 6.4–7.5 4.0–6.0 7.5–10.0 7.0–9.0 4.0–6.0
1.50
1.50
2.00 1.50
2.00
Manganese
0.045 0.045 0.045
0.045
0.045 0.045 0.045 0.060 0.060 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.020 0.030 0.030 0.040 0.045 0.045 0.045
0.045 0.030 0.060 0.045 0.045 0.040 0.060 0.040 0.040
0.040
0.045
0.040 0.045
0.045
Sulfur
Silicon
Chromium
Nickel
0.030 0.030 0.030
0.030
0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.020 0.013 0.030 0.030 0.030 0.030 0.030
0.035 0.010 0.030 0.030 0.015 0.040 0.030 0.030 0.030
0.015
0.015
0.030 0.015
0.035
1.50 0.75 1.50
0.75
0.30–1.00 0.75 0.75 3.5–4.5 0.75 1.00 1.00 1.00 0.75 0.75 0.75 0.75 1.00–2.00 0.75 0.75 0.75 0.75 3.7–4.3 5.0–5.6 3.2–4.0 1.40–2.00 0.75 0.75 0.75
1.00 0.50 1.00 0.75 0.75 3.0–4.0 1.00 1.00 0.75
1.00
1.00
1.00 1.00
1.00
24.0–26.0 24.0–26.0 24.0–26.0
22.0–24.0
17.0–18.5 17.5–22.0 17.5–22.0 16.0–18.0 17.0–19.0 16.0–18.0 16.0–18.0 16.0–18.0 17.0–19.0 18.0–20.0 18.0–20.0 18.0–20.0 18.0–19.0 18.0–20.0 18.0–20.0 18.0–20.0 17.0–19.0 17.0–18.5 17.0–18.0 17.0–19.5 20.0–22.0 22.0–24.0 22.0–24.0 22.0–24.0
19.0–23.0 19.0–21.0 16.0–18.0 16.0–18.0 16.0–17.5 15.0–18.0 17.0–19.0 15.0–17.0 20.5–23.5
19.0–23.0
19.0–23.0
20.0–22.0 19.0–23.0
19.0–21.0
19.0–22.0 19.0–22.0 19.0–22.0
12.0–16.0
1.00 5.0–7.0 5.0–7.0 8.0–9.0 2.3–3.7 6.0–8.0 6.0–8.0 6.0–8.0 8.0–10.0 8.0–10.5 8.0–12.0 8.0–10.5 9.0–10.0 8.0–10.5 8.0–10.5 8.0–12.0 10.5–13.0 14.0–15.5 17.0–18.0 13.5–16.0 10.0–12.0 12.0–15.0 12.0–15.0 12.0–16.0
23.0–28.0 24.0–26.0 3.5–5.5 3.5–5.5 4.0–5.0 4.0–6.0 4.0–6.0 1.50–3.00 11.5–13.5
30.0–35.0
30.0–35.0
23.5–25.5 30.0–35.0
32.0–38.0
Austenitic (Chromium-Nickel) (Chromium-Manganese-Nickel)
Phosphorus
TABLE 1 Chemical Composition Requirements, %A
... ... ...
...
... 2.00–3.00 2.00–3.00 ... ... ... ... ... ... ... ... ... ... ... ... ... ... 0.20 0.20 ... ... ... ... ...
4.0–5.0 6.0–7.0 ... ... ... ... ... ... 1.50–3.00
...
...
6.0–7.0 ...
2.00–3.00
Molybdenum
... ... ...
...
0.35 min 0.25–0.50 0.25–0.50 0.08–0.18 0.20–0.40 0.10 0.20 0.07–0.20 0.10 0.10 0.10 ... 0.12–0.18 0.10–0.16 0.16–0.30 0.10–0.16 ... ... 0.05 ... 0.14–0.20 ... ... ...
0.10 0.15–0.25 0.25 0.25 0.10–0.25 0.08–0.20 0.25 0.15–0.30 0.20–0.40
...
...
0.18–0.25 ...
...
Nitrogen
... ... ...
...
... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 0.50 0.35 ... ... ... ... ...
1.0–2.0 0.5–1.5 ... ... 1.00 ... ... ... ...
0.75
0.75
0.75 0.75
3.0–4.0
Copper
Cb 83C min, 1.00 max ... FeH 39.5 min Al 0.15–0.60 Ti 0.15–0.60 FeH 39.5 min Al 0.15–0.60 Ti 0.15–0.60 FeH 39.5 min TiI 0.15–0.60 AlI 0.15–0.60 ... ... ... ... ... ... ... ... Cb 0.10–0.30 V 0.10–0.30 ... ... ... ... ... ... ... ... ... ... ... ... Ce 0.03–0.08 ... ... ... ... ... ... Al 0.80–1.50 Ce 0.03–0.08 ... ... Cb 103C min, 1.10 max Cb 103C min, 1.10 max ... ... Cb 103C min, 1.10 max
Other ElementsE,F
A 240/A 240M
0.04–0.10
0.020 0.020 0.030 0.08 0.030 0.04–0.10 0.08
0.08
0.07 0.020 0.04–0.08
0.08
310HCbG
310 MoLNG ... ... 316 316L 316H 316TiG
316CbG
316N 316LN 317 317L 317LMG 317LMNG 317LNG ... 321
321H
... ... ...
334G
... 347
347H
348
348H
...
... ... XM-15J ...
... ... ... ...
S31041
S31050 S31254 S31266 S31600 S31603 S31609 S31635
S31640
S31651 S31653 S31700 S31703 S31725 S31726 S31753 S32050 S32100
S32109
S32615 S32654 S33228
S33400
S34565 S34700
4
S34709
S34800
S34809
S35045
S35135 S35315 S38100 S38815
S31200 S31260 S31803 S32001
0.030 0.03 0.030 0.030
0.08 0.04–0.08 0.08 0.030
0.06–0.10
0.04–0.10
0.08
0.04–0.10
0.030 0.08
0.04–0.10
0.08 0.030 0.08 0.030 0.030 0.030 0.030 0.030 0.08
CarbonD
TypeC
UNS DesignationB
2.00 1.00 2.00 4.0–6.0
1.00 2.00 2.00 2.00
1.50
2.00
2.00
2.00
5.0–7.0 2.00
1.00
2.00 2.0–4.0 1.00
2.00
2.00 2.00 2.00 2.00 2.00 2.00 2.00 1.50 2.00
2.00
2.00 1.00 2.0–4.0 2.00 2.00 2.00 2.00
2.00
Manganese
0.045 0.030 0.030 0.040
0.045 0.040 0.030 0.040
0.045
0.045
0.045
0.045
0.030 0.045
0.030
0.045 0.030 0.020
0.045
0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.035 0.045
0.045
0.030 0.030 0.035 0.045 0.045 0.045 0.045
0.045
Phosphorus
0.030 0.030 0.020 0.030
0.015 0.030 0.030 0.020
0.015
0.030
0.030
0.030
0.010 0.030
0.015
0.030 0.005 0.015
0.030
0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.020 0.030
0.030
0.010 0.010 0.020 0.030 0.030 0.030 0.030
0.030
Sulfur
20.0–25.0 24.0–26.0 17.0–19.0 13.0–15.0
25.0–29.0
17.0–19.0
17.0–19.0
17.0–19.0
23.0–25.0 17.0–19.0
18.0–20.0
16.5–19.5 24.0–25.0 26.0–28.0
17.0–19.0
16.0–18.0 16.0–18.0 18.0–20.0 18.0–20.0 18.0–20.0 17.0–20.0 18.0–20.0 22.0–24.0 17.0–19.0
16.0–18.0
24.0–26.0 19.5–20.5 23.0–25.0 16.0–18.0 16.0–18.0 16.0–18.0 16.0–18.0
24.0–26.0
Chromium
1.00 0.75 1.00 1.00
24.0–26.0 24.0–26.0 21.0–23.0 19.5–21.5
Duplex (Austenitic-Ferritic)
0.60–1.00 1.20–2.00 1.50–2.50 5.5–6.5
1.00
0.75
0.75
0.75
1.00 0.75
1.00
4.8–6.0 0.50 0.30
0.75
0.75 0.75 0.75 0.75 0.75 0.75 0.75 1.00 0.75
0.75
0.50 0.80 1.00 0.75 0.75 0.75 0.75
0.75
Silicon
TABLE 1 Continued
5.5–6.5 5.5–7.5 4.5–6.5 1.00–3.00
30.0–38.0 34.0–36.0 17.5–18.5 13.0–17.0
32.0–37.0
9.0–13.0
9.0–13.0
9.0–13.0
16.0–18.0 9.0–13.0
19.0–21.0
19.0–22.0 21.0–23.0 31.0–33.0
9.0–12.0
10.0–14.0 10.0–14.0 11.0–15.0 11.0–15.0 13.5–17.5 13.5–17.5 11.0–15.0 20.0–23.0 9.0–12.0
10.0–14.0
20.5–23.5 17.5–18.5 21.0–24.0 10.0–14.0 10.0–14.0 10.0–14.0 10.0–14.0
19.0–22.0
Nickel
1.20–2.00 2.5–3.5 2.5–3.5 0.60
4.0–4.8 ... ... 0.75–1.50
...
...
...
...
4.0–5.0 ...
...
0.30–1.50 7.0–8.0 ...
...
2.00–3.00 2.00–3.00 3.0–4.0 3.0–4.0 4.0–5.0 4.0–5.0 3.0–4.0 6.0–6.8 ...
2.00–3.00
1.60–2.60 6.0–6.5 5.2–6.2 2.00–3.00 2.00–3.00 2.00–3.00 2.00–3.00
...
Molybdenum
0.14–0.20 0.10–0.30 0.08–0.20 0.05–0.17
... 0.12–0.18 ... ...
...
...
...
...
0.40–0.60 ...
...
... 0.45–0.55 ...
...
0.10–0.16 0.10–0.16 0.10 0.10 0.20 0.10–0.20 0.10–0.22 0.21–0.32 0.10
0.10
0.09–0.15 0.18–0.22 0.35–0.60 0.10 0.10 ... 0.10
...
Nitrogen
... 0.20–0.80 ... 1.00
0.75 ... ... 0.75–1.50
0.75
...
...
...
... ...
...
1.50–2.50 0.30–0.60 ...
...
... ... ... ... ... ... ... 0.40 ...
...
... 0.50–1.00 1.00–2.50 ... ... ... ...
...
Copper
... W 0.10–0.50 ... ...
Cb 103C min, 1.10 max ... ... W 1.50–2.50 ... ... ... Ti 5 3 (C + N) min, 0.70 max Cb 10 3 C min, 1.10 max ... ... ... ... ... ... ... ... Ti 5 3 (C + N) min, 0.70 max Ti 4 3 (C + N) min, 0.70 max ... ... Ce 0.05–0.10 Cb 0.6–1.0 Al 0.025 Al 0.15–0.60 Ti 0.15–0.60 Cb 0.10 Cb 10 3 C min, 1.00 max Cb 8 3 C min, 1.00 max (Cb + Ta) 103C min, 1.00 max Ta 0.10 Co 0.20 (Cb + Ta) 83C min, 1.00 max Ta 0.10 Co 0.20 Al 0.15–0.60 Ti 0.15–0.60 Ti 0.40–1.00 Ce 0.03–0.10 ... Al 0.30
Other ElementsE,F
A 240/A 240M
... 410 ... 410S ...
... ... ... 429G 430 439
434 436
...
...
444
S40977 S41000 S41003 S41008 S41045
S41050 S41500M S42035 S42900 S43000 S43035
S43400 S43600
S43932
S43940
S44400
...
S40930
...
...
S40920
S40975
405 409L ...
S40500 S40900L S40910
...
...
S32803
S40945
0.030 0.030 0.030 0.04 0.030 0.030 0.08 0.030
2205G 2304G ... 255G 2507G ... 329 ...
S32205 S32304 S32520 S32550 S32750 S32760K S32900 S32950
5
0.025
0.030
0.030
0.12 0.12
0.04 0.05 0.08 0.12 0.12 0.030
0.030 0.08–0.15 0.030 0.08 0.030
0.030
0.030
0.030
1.00
1.00
1.00
1.00 1.00
1.00 0.50–1.00 1.00 1.00 1.00 1.00
1.50 1.00 1.50 1.00 1.00
1.00
1.00
1.00
1.00
1.00
0.030
0.030
1.00
0.50
2.00 2.50 1.50 1.50 1.20 1.00 1.00 2.00
Manganese
0.08
0.015
CarbonD
TypeC
UNS DesignationB
0.040
0.040
0.040
0.040 0.040
0.045 0.030 0.045 0.040 0.040 0.040
0.040 0.040 0.040 0.040 0.040
0.040
0.040
0.040
0.040
0.040
0.040
0.020
0.030 0.040 0.035 0.040 0.035 0.030 0.040 0.035
Phosphorus
0.030
0.015
0.030
0.030 0.030
0.030 0.030 0.030 0.030 0.030 0.030
0.015 0.030 0.030 0.030 0.030
0.030
0.030
0.020
0.020
0.020
0.030
1.00 1.00 0.80 1.00 0.80 1.00 0.75 0.60
Silicon 22.0–23.0 21.5–24.5 24.0–26.0 24.0–27.0 24.0–26.0 24.0–26.0 23.0–28.0 26.0–29.0
Chromium
TABLE 1 Continued
1.00
1.00
1.00
1.00 1.00
1.00 0.60 1.00 1.00 1.00 1.00
1.00 1.00 1.00 1.00 1.00
1.00
1.00
1.00
1.00
1.00
1.00
0.55
17.5–19.5
17.5–18.5
17.0–19.0
16.0–18.0 16.0–18.0
10.5–12.5 11.5–14.0 13.5–15.5 14.0–16.0 16.0–18.0 17.0–19.0
10.5–12.5 11.5–13.5 10.5–12.5 11.5–13.5 12.0–13.0
10.5–11.7
10.5–11.7
10.5–11.7
10.5–11.7
10.5–11.7
11.5–14.5
28.0–29.0
Ferritic or Martensitic (Chromium) 0.0035
0.020 0.030 0.020 0.030 0.020 0.010 0.030 0.010
Sulfur
1.00
...
0.50
... ...
0.60–1.10 3.5–5.5 1.0–2.5 ... 0.75 0.50
0.30–1.00 0.75 1.50 0.60 0.50
0.50–1.00
0.50
0.50
0.50
0.50
0.60
3.0–4.0
4.5–6.5 3.0–5.5 5.5–8.0 4.5–6.5 6.0–8.0 6.0–8.0 2.0–5.00 3.5–5.2
Nickel
1.75–2.50
...
...
0.75–1.25 0.75–1.25
... 0.50–1.00 0.2–1.2 ... ... ...
... ... ... ... ...
...
...
...
...
...
...
1.80–2.50
3.0–3.5 0.05–0.60 3.0–4.0 2.9–3.9 3.0–5.0 3.0–4.0 1.00–2.00 1.00–2.50
Molybdenum
0.035
...
0.030
... ...
0.10 ... ... ... ... 0.030
0.030 ... 0.030 ... 0.030
0.030
0.030
0.030
0.030
0.030
...
0.020 (C+N) 0.030
0.14–0.20 0.05–0.20 0.20–0.35 0.10–0.25 0.24–0.32 0.20–0.30 ... 0.15–0.35
Nitrogen
...
...
...
... ...
... ... ... ... ... ...
... ... ... ... ...
...
...
...
...
...
...
...
... 0.05–0.60 0.50–2.00 1.50–2.50 0.50 0.50–1.00 ... ...
Copper
Ti 6x(C+N) min, 0.50 max; Cb 0.17 Ti 8x(C+N) min, Ti 0.15–0.50; Cb 0.10 (Ti+Cb) [0.08+8 3(C+N)] min, 0.75 max; Ti 0.05 min Cb 0.18–0.40 Ti 0.05–0.20 Ti 63(C+N) min, 0.75 max ... ... ... ... Cb 93(C+N) min, 0.60 max ... ... Ti 0.30–0.50 ... ... Ti [0.20+4(C+N)] min, 1.10 max; Al 0.15 ... Cb 5xC min, 0.80 max (Ti+Cb) [0.20+4(C+N)] min, 0.75 max; Al 0.15 Ti 0.10–0.60 Cb [0.30+(33C)] min (Ti+Cb)[0.20+4(C+N)] min, 0.80 max
Cb 123(C+N) min, 0.15–0.50 Al 0.10–0.30
... ... ... W 0.50–1.00 ... ...
...
Other ElementsE,F
A 240/A 240M
...
...
... ...
S44635
S44660
S44700 S44735
6
0.010 0.030
0.010 0.030
0.030
0.30 1.00
0.30 1.00
1.00
1.00
0.40
0.75
1.00
Manganese
0.025 0.040
0.025 0.040
0.040
0.040
0.020
0.040
0.040
Phosphorus
0.020 0.030
0.020 0.030
0.030
0.030
0.020
0.020
0.012
Sulfur
0.20 1.00
0.20 1.00
1.00
0.75
0.40
0.75
1.00
Silicon
28.0–30.0 18.0–20.0
28.0–30.0 28.0–30.0
25.0–28.0
24.5–26.0
25.0–27.5
25.0–27.0
19.0–21.0
Chromium
TABLE 1 Continued
2.00–2.50 0.50
0.15 1.00
1.0–3.5
3.5–4.5
0.50
0.50
0.60
Nickel
3.5–4.2 ...
3.5–4.2 3.6–4.2
3.0–4.0
3.5–4.5
0.75–1.50
0.75–1.50
...
Molybdenum
0.020 0.030
0.020 0.045
0.040
0.035
0.015N
0.04
0.03
Nitrogen
0.15 ...
0.15 ...
...
...
0.20
0.20
0.30–0.60
Copper
Cb 103(C+N) min, 0.80 max Ti 0.20–1.00; Ti 7(C+N) min Cb 0.05–0.20 (Ni + Cu) 0.50 (Ti+Cb) [0.20+4 (C+N)] min, 0.80 max (Ti+Cb) 0.20 − 1.00, Ti + Cb 63(C+N) min (C+N) 0.025 (Ti+Cb) 0.20–1.00, (Ti+Cb) 63 (C+N) min (C+N) 0.025 Ti 0.07–0.30 Cb 0.10–0.60 (Ti+Cb) [0.20+4 (C+N)] min, 0.80 max
Other ElementsE,F
B
Maximum, unless range or minimum is indicated. Designation established in accordance with Practice E 527 and SAE J 1086. C Unless otherwise indicated, a grade designation originally assigned by the American Iron and Steel Institute (AISI). D Carbon analysis shall be reported to nearest 0.01 % except for the low-carbon types, which shall be reported to nearest 0.001 %. E The terms Columbium (Cb) and Niobium (Nb) both relate to the same element. F When two minimums or two maximums are listed for a single type, as in the case of both a value from a formula and an absolute value, the higher minimum or lower maximum shall apply. G Common name, not a trademark, widely used, not associated with any one producer. H Iron shall be determined arithmetically by difference of 100 minus the sum of the other specified elements. I (Al + Ti) 0.85–1.20. J Naming system developed and applied by ASTM. K Cr + 3.3 Mo + 16 N = 40 min. L S40900 (Type 409) has been replaced by S40910, S40920, and S40930. Unless otherwise specified in the ordering information, an order specifying S40900 or Type 409 shall be satisfied by any one of S40910, S40920, or S40930 at the option of the seller. Material meeting the requirements of S40910, S40920, or S40930, may at the option of the manufacturer be certified as S40900. M Plate version of CA-6NM. N Product (check or verification) analysis tolerance over the maximum limit for C and N in XM-27 shall be 0.002 %.
A
... ...
0.010N
XM-27J
S44627
S44800 S46800
0.06
XM-33J
S44626
0.025
0.020
...
S44500
CarbonD
TypeC
UNS DesignationB
A 240/A 240M
N08020 N08367 Sheet and Strip Plate N08800 N08810 N08811 N08904 N08926 S20100 S20100 S20103 S20153 S20161 S20200 S20400 S30100 S30103 S30153 S30200 S30400 S30403 S30409 S30415 S30451 S30453 S30500 S30600 S30601 S30615 S30815 S30908 S30909 S30940 S30941 S31008 S31009 S31040 S31041 S31254 Sheet and Strip Plate S31266 S31600 S31603 S31653 S31609 S31635 S31640 S31651 S31700
UNS Designation
690 655 520 450 450 490 650 515 655 655 655 860 620 655 515 550 550 515 515 485 515 600 550 515 485 540 540 620 600 515 515 515 515 515 515 515 515 690 655 750 515 485 515 515 515 515 550 515
100 95 75 65 65 71 94 75 95 95 95 125 90 95 75 80 80 75 75 70 75 87 80 75 70 78 78 90 87 75 75 75 75 75 75 75 75 100 95 109 75 70 75 75 75 75 80 75
800 800HF ... 904LF ... 201-1I 201-2I 201LF 201LNF ... 202 ... 301 301LF 301LNF 302 304 304L 304H ... 304N 304LN 305 ... ... ... ... 309S 309HF 309CbF 309HCbF 310S 310HF 310CbF 310HCbF
... 316 316L 316LN 316H 316TiF 316CbF 316N 317
F
550
7 45 45 61 30 25 30 30 30 30 35 30
45 45 30G 25G 25 31 43 38 45 38 45 50 38 48 30 32 35 30 30 25 30 42 35 30 25 35 37 40 45 30 30 30 30 30 30 30 30
35
310 310 420 205 170 205 205 205 205 240 205
310 310 205G 170G 170 220 295 260 310 260 310 345 260 330 205 220 240 205 205 170 205 290 240 205 170 240 255 275 310 205 205 205 205 205 205 205 205
240
Austenitic (Chromium-Nickel) (Chromium-Manganese-Nickel)
MPa
ksi
ksi
MPa
Yield Strength,B min
Tensile Strength, min
80
...
TypeA
35.0 35.0 35.0 40.0 40.0 40.0 40.0 40.0 30.0 35.0 35.0
30.0 30.0 30.0H 30.0 30.0 35.0 35.0 40.0 40.0 40.0 45.0 40.0 40.0 35.0 40.0 45.0 45.0 40.0 40.0 40.0 40.0 40.0 30.0 40.0 40.0 40.0 30.0 35.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0 40.0
30.0E
Elongation in 2 in. or 50 mm, min, %
TABLE 2 Mechanical Test Requirements
223 223 ... 217 217 217 217 217 217 217 217
... 241 ... ... ... ... ... ... 217 217 241 255 241 241 217 241 241 201 201 201 201 217 201 201 183 ... ... 217 217 217 217 217 217 217 217 217 217
217
Brinell
96 96 ... 95 95 95 95 95 95 95 95
100 ... ... ... ... 90 ... 95 100 95 100 25J ... 100 95 100 100 92 92 92 92 95 92 92 88 ... ... 95 95 95 95 95 95 95 95 95 95
95
Rockwell B
Hardness, maxC
not not not not not not not not not not not
required required required required required required required required required required required
not required not required not required not required not required not required not required ... ... not required not required not required ... not required not required not required not required not required not required not required not required not required not required not required not required ... not required not required ... not required not required not required not required not required not required not required not required
not required
Cold Bend°D
A 240/A 240M
8
... ... ... ... 2205F 2304F ... 255F
S31200 S31260 S31803 S32001 S32205 S32304 S32520 S32550
XM-31
L
XM-29L
XM-19
L
XM-18L
...
and Strip
and Strip
and Strip
and Strip
310 MoLN t # 0.25 in. t > 0.25 in. XM-17J
F
100 100 90 90 90 87 112 110
125 105 95
100 100
105 100
100 90
100 90
84 78
90 85
80 75 94 75 78
... ... ... XM-15L ... XM-21L
690 690 620 620 620 600 770 760
860 725 655
690 690
725 690
690 620
690 620
580 540
620 585
550 515 650 515 540
485 380 345
415 380
415 380
415 345
415 345
270 255
345 275
205 205 270 205 255
205 240 205 240 330 205 205 220 430 185 170 415 205 205 205 205 170
MPa
65 70 65 65 65 58 80 80
450 485 450 450 450 400 550 550
Duplex (Austenitic-Ferritic)
70 55 50
60 55
60 55
60 50
60 50
39 37
50 40
30 30 39 30 37
30 35 30 35 48 30 30 32 62 27 25 60 30 30 30 30 25
ksi
515 550 515 550 675 515 515 550 750 500 485 795 515 515 515 515 485
MPa
ksi 75 80 75 80 98 75 75 80 109 73 70 115 75 75 75 75 70
Yield Strength,B min
TABLE 2 Continued Tensile Strength, min
317LMF 317LMNF 317L 317LN ... 321 321H ... ... ... 334F ... 347 347H 348 348H ...
TypeA
S21600 Sheet Plate S21603 Sheet Plate S20910 Sheet Plate S24000 Sheet Plate S21400 Sheet Strip S21800
S31725 S31726 S31703 S31753 S32050 S32100 S32109 S32615K S32654 S33228 S33400 S34565 S34700 S34709 S34800 S34809 S35045 S35135 Sheet and Strip Plate S35315 S38100 S38815 S30452 Sheet and Strip Plate S31050
UNS Designation
25.0 20.0 25.0 25.0 25.0 25.0 25.0 15.0
40.0 40.0 35.0
40.0 40.0
30.0 35.0
40.0 40.0
40.0 40.0
25 25
30.0 30.0
30.0 30.0 40.0 40.0 30.0
40.0 40.0 40.0 40.0 40.0 40.0 40.0 25 40.0 30.0 30 35.0 40.0 40.0 40.0 40.0 35.0
Elongation in 2 in. or 50 mm, min, %
293 290 293 ... 293 290 310 302
... ... 241
241 241
241 241
241 241
241 241
217 217
241 241
... ... 217 217 ...
217 223 217 217 250 217 217 ... 250 217 ... 241 201 201 201 201 ...
Brinell
31J ... 31J 25G 31J 32J ... 32J
... ... 100
100 100
100 100
100 100
100 100
95 95
100 100
... ... 95 95 ...
95 96 95 95 ... 95 95 ... ... 95 92 100 92 92 92 92 ...
Rockwell B
Hardness, maxC
required required required required required
required required required required required required required required required required required required required required required required required
not required ... not required not required not required not required not required not required
not required not required not required
not required not required
not required not required
not required not required
not required not required
not required not required
not required not required
not not not not not
not not not not not not not not not not not not not not not not not
Cold Bend°D
A 240/A 240M
2507 ... 329 ...
... 405 409N ... ... ... ... ... ... 410 ... 410S ... ... ... ... 429F 430 439 434 436 ... ...
S32803 S40500 S40900N S40910 S40920 S40930 S40945 S40975 S40977 S41000 S41003 S41008 S41045 S41050 S41500 S42035 S42900 S43000 S43035 S43400 S43600 S43932 S43940
F
TypeA
S32750 S32760 S32900 S32950M
UNS Designation
600 415 380 380 380 380 415 450 450 455 415 380 415 795 550 450 450 415 450 450 415 430
55 55 55 55 60 65 65 66 60 55 60 115 80 65 65 60 65 65 60 62
795 750 620 690
87 60
116 108 90 100
550 550 485 485
25 25 25 30 40 41 30 40 30 30 30 90 55 30 30 30 35 35 30 36
72 25 170 170 170 205 275 280 205 275 205 205 205 620 380 205 205 205 240 240 205 250
500 170
Ferritic or Martensitic (Chromium)
80 80 70 70
MPa
ksi
ksi
MPa
Yield Strength,B min
TABLE 2 Continued Tensile Strength, min
20 20 20 22.0 20.0 18 20.0 18 22.0O 22.0 22.0 15.0 16 22.0O 22.0O 22.0 22.0 22.0 22.0 18
16.0 20.0
15.0 25.0 15.0 15.0
Elongation in 2 in. or 50 mm, min, %
179 179 179 ... 197 180 217 223 183 ... 183 302 180 183 183 183 ... ... 183 180
241 179
310 270 269 293
Brinell
88 88 88 80 92 88 96 20J 89 80 89 32J 88 89 89 89 89 89 89 88
100 88
32J ... 28J 32J
Rockwell B
Hardness, maxC
required required required required
9
not
not not
not
not
180 180 180 180 180 reguired 180 reguired 180 180 180 required reguired 180 180 180 180 180 180 reguired
not required 180
not not not not
Cold Bend°D
A 240/A 240M
10
... ... XM-33L XM-27L ... ... ... ... ... ...
TypeA
60 62 68 65 90 85 80 80 80 60
415 427 470 450 620 585 550 550 550 415
40 30 45 40 75 65 60 60 60 30
275 205 310 275 515 450 415 415 415 205
MPa
ksi
ksi
MPa
Yield Strength,B min
TABLE 2 Continued Tensile Strength, min
20.0 22 20.0 22.0 20.0 18.0 20.0 18.0 20.0 22
Elongation in 2 in. or 50 mm, min, % 217 ... 217 187 269 241 223 255 223 ...
Brinell
96 83 96 90 28F 100 20F 25F 20F 90
Rockwell B
Hardness, maxC
180 180 180 180 180 180 180 180 180 180
Cold Bend°D
B
Unless otherwise indicated, a grade designation originally assigned by the American Iron and Steel Institute (AISI). Yield strength shall be determined by the offset method at 0.2 % in accordance with Test Methods and Definitions A 370. Unless otherwise specified (see Specification A 480/A 480M, paragraph 4.1.11, Ordering Information), an alternative method of determining yield strength may be based on total extension under load of 0.5 %. C Either Brinell or Rockwell B Hardness is permissible. D Bend tests are not required for chromium steels (ferritic or martensitic) thicker than 1 in. [25 mm] or for any austenitic or duplex (austenitic-ferritic) stainless steels regardless of thickness. E Elongation for thickness, less than 0.015 in. (0.38 mm) shall be 20 % minimum, in 1 in. (25.4 mm). F Common name, not a trademark, widely used, not associated with any one producer. G Yield strength requirements shall not apply to material under 0.020 in [0.50 mm] in thickness. H Not applicable for thicknesses under 0.010 in. [0.25 mm]. I Type 201 is generally produced with a chemical composition balanced for rich side (Type 201-1) or lean side (Type 201-2) austenite stability depending on the properties required for specific applications. J Rockwell C scale. K For S32615, the grain size as determined in accordance with the Test Methods E 112, Comparison Method, Plate II, shall be No. 3 or finer. L Naming system developed and applied by ASTM. M Prior to Specification A 240 – 89b, the tensile value for S32950 was 90 ksi. N S40900 (Type 409) has been replaced by S40910, S40920, and S40930. Unless otherwise specified in the ordering information, an order specifying S40900 or Type 409 shall be satisfied by any one of S40910, S40920, or S40930 at the option of the seller. Material meeting the requirements of S40910, S40920, or S40930, may at the option of the manufacturer be certified as S40900. O Material 0.050 in (1.27 mm) and under in thickness shall have a minimum elongation of 20 %.
A
S44400 S44500 S44626 S44627 S44635 S44660 S44700 S44735 S44800 S46800
UNS Designation
A 240/A 240M
A 240/A 240M SUPPLEMENTARY REQUIREMENTS A supplementary requirement shall apply only when specified in the purchase order. S1. Charpy Impact Testing of Plate S1.1 Charpy impact tests shall be conducted in accordance with Test Methods and Definitions A 370. S1.2 Number of Tests —One impact test (3 specimens) shall be made from one plate per heat treatment lot in the final heat treated condition. S1.3 Orientation of Test Specimens —Unless specified as transverse specimens (long axis of the specimen transverse to the final rolling direction, root of the notch perpendicular to the rolling face) on the purchase order, the orientation of the specimens shall be longitudinal (long axis of the specimen parallel to the final rolling direction, root of the notch perpendicular to the rolling face). The manufacturer is permitted to test transverse specimens provided that such tests meet the acceptance criteria applicable to longitudinal specimens. Unless otherwise specified on the purchase order, the specimens shall be taken so as to include the mid-thickness of the product. S1.4 Test Temperature —The purchaser shall specify the test temperature. The manufacturer is permitted to test specimens at a temperature lower than that specified by the purchaser, provided that such tests shall meet the acceptance criteria applicable to specimens tested at the specified temperature (see Note ).
steel covered. It may be economical for the Charpy impact tests performed on duplex stainless steels covered in both Specification A 240 and Test Methods A 923 to be performed at the lower of the temperatures specified by this supplementary requirement and Test Methods A 923 Method B, with measurement of both lateral expansion and impact energy.
S1.5 Acceptance Limit —Unless otherwise specified on the purchase order, each of the three specimens tested shall show a lateral expansion opposite the notch of not less than 0.015 in. [0.38 mm]. S1.6 Records —The recorded results shall include the specimen orientation, specimen size, test temperature, absorbed energy values (if required), and lateral expansion opposite the notch. S2. Materials for High-Temperature Service S2.1 Unless an H grade has been ordered, this supplementary requirement shall be specified for ASME Code applications for service above 1000°F [540°C]. S2.2 The user is permitted to use an austenitic stainless steel as the corresponding H grade when the material meets all requirements of the H grade including chemistry, annealing temperature, and grain size (see Section 6). S2.3 The user is permitted to use an L grade austenitic stainless steel for service above 1000°F [540°C], subject to the applicable allowable stress table of the ASME Code, when the material meets all requirements of this specification and the grain size is ASTM No. 7 or coarser as determined in accordance with Test Method E 112. The grain size shall be reported on a Certified Test Report.
NOTE —Test Methods A 923, Method B, applicable to some duplex (austenitic-ferritic) stainless steels as listed in Test Methods A 923, uses a Charpy impact test for the purpose of determining the absence of detrimental intermetallic phases. Method B specifies a test temperature and acceptance criterion, expressed as impact energy, for each type of
The American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. This standard is copyrighted by ASTM, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above address or at 610-832-9585 (phone), 610-832-9555 (fax), or [email protected] (e-mail); or through the ASTM website (www.astm.org).
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