40Cr - H2ABC

Grade	40Cr
Brand/Supplier	-> BAOSTEEL
Classification	Alloy Steel

40Cr Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr
Minimum Value	0.37	0.17	0.5	-	-	0.8
Maximum Value	0.44	0.37	0.8	0.015	0.025	1.1

40Cr Mechanical Properties

product form	Heat Treatment or Condition	Hardness HBW
Hot-rolled steel plate (Baosteel)	Hot Rolling	HV ≤300
Hot-rolled steel plate (Baosteel)	Annealing	HV ≤180
Hot-rolled steel plate (Baosteel)	Water Quenching 800~880℃	HRC ≥47
Hot-rolled steel plate (Baosteel)	Oil Quenching 830~900°C	HRC ≥45

Approximate Comparison Table structural alloy steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

European Standard

Russia

Sweden

United Kingdom

ISC

CNS

JIS

ASTM/AISI

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

Numerical Grade

GOST

SS₁₄

BS EN/BS

40Cr

A20402

SCr440

SCr440
SCr440H

SCr440

5140

G51400

41Cr4

1.7035

42C4

41Cr4

1.7035

40Х

2245

530A40
530M40

40Cr Corresponding Standards(Same grade name, different standards)

1	GB
	40Cr
2	GB /T 3077-1999
	40Cr A20402
3	GB /T 17107-1997
	40Cr
4	GB /T 3077-2015
	40Cr A20402
5	Q/BQB 517-2018
	40Cr
6	GB /T 3078-2019
	40Cr
7	Q/BQB 135-2009
	40Cr
8	JB /T 6396-2006
	40Cr
9	Q/ASB 234-2018
	40Cr
10	JB /T 6908-2020
	40Cr A20402
11	GB /T 37601-2019
	40Cr

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