Aisi 4130.pdf
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Material properties Material
4130 (USA / SAE)
Group
Structural and constructional steels
Subgroup
J 404
Comment
Chromium Molybdenum Alloy Steel
Application
Chemical compositions of SAE alloy steels applicable to billets, blooms, slabs, and hot-rolled and cold-finished bars. They are also applicable to wire rods but not to structural shapes, sheet and strip, hot-rolled and cold-rolled, or seamless and welded mechanical tubing.
Chemical Composition [%] Criterion
Min
Max
Aprox
C
0.28
0.33
-
Si
0.15
0.35
-
Mn
0.40
0.60
-
P
-
0.04
-
S
-
0.04
-
Cr
0.80
1.10
-
Mo
0.15
0.25
-
Low cycle fatigue I Condition Quenched and tempered
Direction L
Cyclic yield strength [MPa]
Cyclic strength exponent
Cyclic strength coefficient
0.13
1837.0
797.00
Low cycle fatigue II Condition Quenched and tempered
Direction L
Fatique str. coeff. [MPa]
Fatigue str. exponent
1731.0
-0.08
Fatigue duct. coefficient 0.84
Cross Reference Table Material
Standard
Country
25 CrMo 4
AFNOR NF
France
25 CD 4
AFNOR NF
France
4130
AISI
USA
4130 H
AISI
USA
4130 H
AS
Australia
4130
AS
Australia
25 CrMo 4
B.S.
United Kingdom
25 ChML
BDS
Bulgaria
15130
CSN
Czech Republic
GS-25 CrMo 4
DIN
Germany
25 CrMo 4
DIN
Germany
25 CrMo 4
EN
European Union
Page 1
Fatigue duct. exponent -0.68
Cross Reference Table Material
Standard
Country
1.7218
EN
European Union
ML30CrMoA
GB
China
ML30CrMo
GB
China
30CrMo
GB
China
30ChM
GOST
Russia
20ChM
GOST
Russia
SCM 420
JIS
Japan
SCM 430
JIS
Japan
SCCrM 1
JIS
Japan
C 4730
JUS
Yugoslavia
25 CrMo 4
NBN
Belgium
25 CrMo 4
NS
Norway
L 25 HM
PN
Poland
25 HM
PN
Poland
4130 H
SAE
USA
367 (G-25 CrMo 4)
SFS
Finland
SS
Sweden
26 MoCr 11
STAS
Romania
T 30 CrMo 3
2225
STAS
Romania
F.8372 (AM 26 CrMo 4)
UNE
Spain
25 CrMo 4
UNE
Spain
F.8330 (AM 25 CrMo 4)
UNE
Spain
F.222
UNE
Spain
25 CrMo 4 KB
UNI
Italy
25 CrMo 4
UNI
Italy
G41300
UNS
USA
H41300
UNS
USA
1.7218
WN
Germany
Page 2
4130 (USA / SAE)
Group
Structural and constructional steels
Subgroup
J 404
Comment
Chromium Molybdenum Alloy Steel
Application
Chemical compositions of SAE alloy steels applicable to billets, blooms, slabs, and hot-rolled and cold-finished bars. They are also applicable to wire rods but not to structural shapes, sheet and strip, hot-rolled and cold-rolled, or seamless and welded mechanical tubing.
Chemical Composition [%] Criterion
Min
Max
Aprox
C
0.28
0.33
-
Si
0.15
0.35
-
Mn
0.40
0.60
-
P
-
0.04
-
S
-
0.04
-
Cr
0.80
1.10
-
Mo
0.15
0.25
-
Low cycle fatigue I Condition Quenched and tempered
Direction L
Cyclic yield strength [MPa]
Cyclic strength exponent
Cyclic strength coefficient
0.13
1837.0
797.00
Low cycle fatigue II Condition Quenched and tempered
Direction L
Fatique str. coeff. [MPa]
Fatigue str. exponent
1731.0
-0.08
Fatigue duct. coefficient 0.84
Cross Reference Table Material
Standard
Country
25 CrMo 4
AFNOR NF
France
25 CD 4
AFNOR NF
France
4130
AISI
USA
4130 H
AISI
USA
4130 H
AS
Australia
4130
AS
Australia
25 CrMo 4
B.S.
United Kingdom
25 ChML
BDS
Bulgaria
15130
CSN
Czech Republic
GS-25 CrMo 4
DIN
Germany
25 CrMo 4
DIN
Germany
25 CrMo 4
EN
European Union
Page 1
Fatigue duct. exponent -0.68
Cross Reference Table Material
Standard
Country
1.7218
EN
European Union
ML30CrMoA
GB
China
ML30CrMo
GB
China
30CrMo
GB
China
30ChM
GOST
Russia
20ChM
GOST
Russia
SCM 420
JIS
Japan
SCM 430
JIS
Japan
SCCrM 1
JIS
Japan
C 4730
JUS
Yugoslavia
25 CrMo 4
NBN
Belgium
25 CrMo 4
NS
Norway
L 25 HM
PN
Poland
25 HM
PN
Poland
4130 H
SAE
USA
367 (G-25 CrMo 4)
SFS
Finland
SS
Sweden
26 MoCr 11
STAS
Romania
T 30 CrMo 3
2225
STAS
Romania
F.8372 (AM 26 CrMo 4)
UNE
Spain
25 CrMo 4
UNE
Spain
F.8330 (AM 25 CrMo 4)
UNE
Spain
F.222
UNE
Spain
25 CrMo 4 KB
UNI
Italy
25 CrMo 4
UNI
Italy
G41300
UNS
USA
H41300
UNS
USA
1.7218
WN
Germany
Page 2
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