SCM440 - JIS G 4053-2016

Grade	SCM440
Corresponding Standard	JIS G 4053-2016 Low-alloyed steels for machine structural use
Brand/Supplier	Japan -> JFE Steel Japan -> NSSC -> POSCO -> BAOSTEEL
Classification	Alloy Steel

SCM440 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.38	0.15	0.6	-	-	0.9	-	-	0.15
Maximum Value	0.43	0.35	0.9	0.03	0.03	1.2	0.25	0.3	0.3

1 Approximate Comparison Table structural alloy steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

European Standard

Sweden

United Kingdom

ISC

CNS

JIS

ASTM/AISI

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

Numerical Grade

SS₁₄

BS EN/BS

42CrMo

A30422

SCM440

SCM440
SCM440H

SCM440

4140
4142

G41400
G41420

42CrMo4

1.7225

42CD4

42CrMo4

1.7225

2244

708M40

2 Approximate Comparison Table structural alloy steel

China		Japan	South Korea	United States		International Organization for Standardization	Germany		Russia	United Kingdom
GB	ISC	JIS	KS	ASTM/AISI	UNS	ISO	DIN EN/DIN	W-Nr.	GOST	BS EN/BS
40CrMnMo	A34402	SCM440	SCM440	4142 4140	G41420	42CrMo4	42CrMo4	1.7225	40ХГМ	708A42

3 Approximate Comparison Table

China	Japan	United States	International Organization for Standardization	Germany
GB	JIS	ASTM/AISI	ISO	DIN EN/DIN
ML42CrMo	SCM440	4140	42CrMo4E	42CrMo4

4 Approximate Comparison Table

Japan	International Organization for Standardization	European Standard
JIS	ISO	EN	Numerical Grade
SCM440 SCM440H	42CrMo4	42CrMo4	1.7225

5 Approximate Comparison Table structural alloy steel

Japan	United States		Germany		France	European Standard	Russia	United Kingdom
JIS	ASTM/AISI	UNS	DIN EN/DIN	W-Nr.	NF EN/NF	EN	GOST	BS EN/BS
SCM440	4140 4142 6135	G41400	41CrMo4	1.7223	42CD4TS	41CrMo	40ХФА 40KHFA	3111-5/1 42CrMo4 708M40

SCM440 Corresponding Standards(Same grade name, different standards)

1	JIS G 4053-2003
	SCM440
2	CNS 3229(G3063)
	SCM440 (SCM 4)
3	JIS G 4105-1979
	SCM440 (SCM4)
4	JIS G 4053-2016
	SCM440
5	Q/BQB 517-2018
	SCM440
6	Q/ASB 234-2018
	SCM440
7	Q/XG 114-2016
	SCM440
8	Q/OHAB 113-2020
	SCM440

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!