4135 - ASTM A1031/A1031M-2025

Grade	4135
Corresponding Standard	ASTM A1031/A1031M-2025 Steel, Sheet and Strip, Heavy-Thickness Coils, Alloy, Drawing Steel and Structural Steel, Hot-Rolled
Classification	Alloy Steel

4135 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Mo
Minimum Value	0.33	0.15	0.7	-	-	0.8	0.15
Maximum Value	0.38	0.35	0.9	0.025	0.025	1.1	0.25

1 Approximate Comparison Table Alloy Steel for Quenching and Tempering

United States	International Organization for Standardization	Germany		France	European Standard
ASTM	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	EN	Numerical Grade
4135	34CrMoS4	34CrMoS4	1.7226	34CD4u	34CrMoS4	1.7226

2 Approximate Comparison Table Structural Alloy Steel

China	Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
35CrMo ZG35CrMo	SCM435H	4135	34CrMo4	34CrMo4	34CD4 35CD4	34CrMo4	1.7220	35KHM 35KHML	2234	708A30 708M32

3 Approximate Comparison Table Cast Steel

China	Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
ZG35CrMo 35CrMo	SCM435H	4135	34CrMo4	34CrMo4	34CD4 35CD4	34CrMo4	1.7220	35KHM 35KHML	2234	708A30 708M32

4 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

China	Japan	United States	International Organization for Standardization	Germany
GB	JIS	ASTM	ISO	DIN EN/DIN
ML35CrMo	SCM435	4135	34CrMo4E	34CrMo4

5 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion

China		Japan	United States	International Organization for Standardization	European Standard
YB	GB	JIS	ASTM	ISO	EN
QML35CrMo	ML35CrMo	SCM435	4135	34CrMo4	34CrMo4

4135 Corresponding Standards(Same grade name, different standards)

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