20CrMo - GB /T 37601-2019

Grade	20CrMo
Corresponding Standard	GB /T 37601-2019 Hot Rolled Steel Sheet and Strip of Alloy Structure Steel
Classification	Alloy Steel

20CrMo Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.17	0.17	0.4	-	-	0.8	-	-	0.15
Maximum Value	0.24	0.37	0.7	0.03	0.02	1.1	0.3	0.3	0.25

20CrMo Mechanical Properties

product	Heat Treatment or Condition	Hardness HBW
Steel plate, steel strip	Spheroidizing Annealing	≤197

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	France
GB	NF EN/NF
20CrMo	18CrMo4

20CrMo Corresponding Standards(Same grade name, different standards)

1	GB /T 3077-1999
	20CrMo A30202
2	GB /T 3077-2015
	20CrMo A30202
3	GB /T 3078-2019
	20CrMo
4	GB /T 37601-2019
	20CrMo

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