G41180 - ASTM A29M UNS-2012

USA UNS	G41180
ASTM Specification or Grade	4118
Corresponding Standard	ASTM A29/A29M-2012 Standard Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought
Classification	Alloy Steel

Chemical Element Composition Content (%)

Component	C	Si ^①	Mn	P	S	Cr	Ni ^②	Cu ^②	Mo	More
Minimum Value	0.18	0.15	0.7	-	-	0.4	-	-	0.08	③
Maximum Value	0.23	0.35	0.9	0.035	0.04	0.6	0.25	0.35	0.15	③

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

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