4140H H41400 - ASTMA 304-2004

Grade	4140H
USA UNS	H41400
Corresponding Standard	ASTM A 304-2004 Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements
Classification	Alloy Steel

4140H Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Mo
Minimum Value	0.37	0.15	0.65	-	-	0.75	0.15
Maximum Value	0.44	0.35	1.1	0.025	0.025	1.2	0.25

Approximate Comparison Table Hardenability Guaranteed Structural Steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

Russia

Sweden

United Kingdom

ISC

CNS

JIS

ASTM

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

GOST

BS EN/BS

42CrMoH

A30425

SCM440H

4140H

H41400

42CrMo4H

42CrMo4

1.7225

42CrMo4
(40CD4)

≈38ХМ

2244

42CrMo4

4140H Corresponding Standards(Same grade name, different standards)

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