SCM418 - JIS G 4053-2003

Grade	SCM418
Corresponding Standard	JIS G 4053-2003 Alloy steel plate for machinery
Classification	Alloy Steel

SCM418 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.16	0.15	0.6	-	-	0.9	-	-	0.15
Maximum Value	0.21	0.35	0.9	0.03	0.03	1.2	0.25	0.3	0.25

New and Old Grade Replacement List

Corresponding Standard	Grade
JIS G 4053-2003	Grade
JIS G 4053-2016	Grade

1 Approximate Comparison Table structural alloy steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

European Standard

Russia

United Kingdom

ISC

CNS

JIS

ASTM/AISI

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

Numerical Grade

GOST

BS EN/BS

20CrMo
20CrMoH

A30202

SCM420

SCM420
SCM418
SCM418H

SCM420

4118
4120

G41180

18CrMo4

20CrMo5

1.7264

18CD4

18CrMo4

1.7243

20ХМ

CDS12

2 Approximate Comparison Table structural alloy steel

Japan	International Organization for Standardization	Germany	France	European Standard		Russia	United Kingdom
JIS	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	BS EN/BS
SCM418	18CrMo4	18CrMo4	18CD4 18CrMo4	18CrMo4	1.7243	20KHM	708H20 708M20

SCM418 Corresponding Standards(Same grade name, different standards)

1	JIS G 4053-2003
	SCM418
2	JIS G 4105-1979
	SCM418
3	JIS G 4053-2016
	SCM418

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