Grade 42CrMo4
Other Names
Corresponding Standard ISO 683-1-1987
Heat-treatable steels,alloy steels and free-cutting steels. Part 1:Direct-hardening unalloyed and low-alloyed wrought steel in form of different black produts
Classification Alloy Steel
42CrMo4 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Mo
Minimum Value 0.38 0.1 0.6 - - 0.9 0.15
Maximum Value 0.45 0.4 0.9 0.035 0.035 1.2 0.3
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 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
4 Approximate Comparison Table
Japan International Organization for Standardization European Standard
JIS ISO EN Numerical Grade
SCM440
SCM440H
42CrMo4 42CrMo4 1.7225

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