SCM420 - JIS G 4053-2003

Grade	SCM420
Corresponding Standard	JIS G 4053-2003 Alloy steel plate for machinery
Brand/Supplier	Japan -> NSSC
Classification	Alloy Steel

SCM420 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.18	0.15	0.6	-	-	0.9	-	-	0.15
Maximum Value	0.23	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 4105-1979	Grade Old 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

China	Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	SAE	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
30CrMo	SCM420 SCM430	4130	25CrMo4	25CrMo4	25CD4	25CrMo4	1.7218	20KHM 30KHM 30KHMA	2225	708A25 708M25 CFS10

SCM420 Corresponding Standards(Same grade name, different standards)

1	JIS
	SCM420
2	JIS G 4053-2003
	SCM420
3	CNS 3229(G3063)
	SCM420 (SCM 22)
4	JIS G 4105-1979
	SCM420 (SCM 22)
5	JIS G 4053-2016
	SCM420
6	Q/BQB 517-2018
	SCM420
7	Q/ASB 234-2018
	SCM420
8	Q/OHAB 113-2020
	SCM420

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