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Grade 40Cr
Corresponding Standard GB /T 3278-2023
Hot-Rolled Steel Plates, Sheets and Strips for Tools
Classification Alloy Steel
40Cr Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo
Minimum Value 0.37 0.17 0.5 - - 0.8 - - -
Maximum Value 0.44 0.37 0.8 0.025 0.02 1.1 0.3 0.2 0.1
40Cr Mechanical Properties
Heat Treatment or Condition
Hardness
HBW
Annealed ≤207
Hot-Rolled HRC
21~26
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
GB ISC CNS JIS KS ASTM/AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS14 BS EN/BS
40Cr A20402 SCr440 SCr440
SCr440H 		SCr440 5140 G51400 41Cr4 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
12 GB /T 11251-2020
40Cr A20402
13 GB /T 3278-2023
40Cr

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