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Grade 42CrMo4
European Standard Steel Grade 1.7225
Corresponding Standard EN 10305-1-2010
Steel tubes for precision applications - Technical delivery conditions - Part 1: Seamless cold drawn tubes
Classification Alloy Steel
42CrMo4 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Mo
Minimum Value 0.38 - 0.6 - - 0.9 0.15
Maximum Value 0.45 0.4 0.9 0.025 0.035 1.2 0.3
42CrMo4 Mechanical Properties
condition Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Elongation or Extension Rate
δ
%
Seamless steel pipe 42CrMo4 +C Cold Drawn Hardened (+C) ≥720 ≥4
Seamless steel pipe 42CrMo4 +LC Cold Precision Finished (+LC) ≥670 ≥6
1 Approximate Comparison Table Structural Alloy Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Sweden United Kingdom
GB ISC CNS JIS KS ASTM/AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade SS14 BS EN/BS
42CrMo A30422 SCM440 SCM440
SCM440H 		SCM440 4140
4142 		G41400
G41420 		42CrMo4 42CrMo4 1.7225 42CD4 42CrMo4 1.7225 2244 708M40
2 Approximate Comparison Table Structural Alloy Steel
China Japan South Korea United States International Organization for Standardization Germany Russia United Kingdom
GB ISC JIS KS ASTM/AISI UNS ISO DIN EN/DIN W-Nr. GOST BS EN/BS
40CrMnMo A34402 SCM440 SCM440 4142
4140 		G41420 42CrMo4 42CrMo4 1.7225 40ХГМ 708A42
3 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
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF GOST SS BS EN/BS
42CrMoH A30425 SCM440H SCM440H SCM440H 4140H H41400 42CrMo4H 42CrMo4 1.7225 42CrMo4
(40CD4) 		≈38ХМ 2244 42CrMo4
4 Approximate Comparison Table Cold Heading Steel
China United States International Organization for Standardization Germany France
GB ISC ASTM/AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF
ML42CrMo A30424 4140
A320ML7M 		G41400 42CrMo4E
(C32) 		42CrMo4 1.7225 42CD4
5 Approximate Comparison Table Structural Alloy Steel
China Japan United States International Organization for Standardization Germany France European Standard Russia Sweden United Kingdom
GB JIS ASTM ISO DIN EN/DIN NF EN/NF EN Numerical Grade GOST SS BS EN/BS
42CrMo SCM440H 4140
4142 		42CrMo4 42CrMo4 42CD4 42CrMo4 1.7225 35KHM
38KHM 		2244 708M40
CFS11
6 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
China Japan United States International Organization for Standardization Germany
GB JIS ASTM/AISI ISO DIN EN/DIN
ML42CrMo SCM440 4140 42CrMo4E 42CrMo4
7 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
Japan International Organization for Standardization European Standard
JIS ISO EN Numerical Grade
SCM440
SCM440H 		42CrMo4 42CrMo4 1.7225
8 Approximate Comparison Table Structural Alloy Steel
Japan United States Germany France European Standard Russia United Kingdom
JIS ASTM/AISI UNS DIN EN/DIN W-Nr. NF EN/NF EN GOST BS EN/BS
SCM440 4140
4142
6135 		G41400 41CrMo4 1.7223 42CD4TS 41CrMo 40ХФА
40KHFA 		3111-5/1
42CrMo4
708M40
9 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
China Japan United States International Organization for Standardization European Standard
GB JIS ASTM ISO EN
ML40CrMo SCM440 4140 42CrMo4 42CrMo4
42CrMo4 Corresponding Standards(Same grade name, different standards)
1 ISO 683-18-1996
42CrMo4
2 DIN 17200-1987
42CrMo4 1.7225
3 EN 10083-3-2006
42CrMo4 1.7225
4 ISO 683-1-1987
42CrMo4 42CrMo4H 42CrMo4HH 42CrMo4HL
5 EN 10263-4-2001
42CrMo4 1.7225
6 EN 10250-3-1999
42CrMo4 1.7225
7 EN 10269-2006
42CrMo4 1.7225
8 EN 10297-1-2003
42CrMo4 1.7225
9 EN 10305-1-2010
42CrMo4 1.7225
10 DIN 17230-1980
(42CrMo4) 43CrMo4 1.3563 (41CrMo4) (1.7225) (1.7223)
11 DIN EN 10263-4-2002
42CrMo4 1.7225
12 EN 10269-2013
42CrMo4 1.7225
13 DIN 17204-1990
42CrMo4 1.7225
14 NF EN 10269-1999
42CrMo4 1.7225
15 VDI 2230-1-2015
42CrMo 4 1.7225
16 Q/BQB 517-2018
42CrMo4
17 DIN EN 10263-4-2018
42CrMo4 1.7225
18 EN 10263-4-2017
42CrMo4 1.7225
19 DIN EN 10269-2014
42CrMo4 1.7225
20 ISO 683-2-2016
42CrMo4
21 ISO 683-18-2014
42CrMo4
22 EN ISO 683-2-2018
42CrMo4
23 ISO 4954-2018
42CrMo4
24 EN 10132-2021
42CrMo4 1.7225
25 NF A 35-590-1992
42CrMo4 (Y42CD4)
26 NF EN 10083-3-2006
42CrMo4 1.7225 (42CD4)
27 ISO 4954-1-2024
42CrMo4
28 DIN 1654-4-1989
42CrMo4 1.7225
29 JIS G 7105-2000
42CrMo4

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