Grade 42CrMo4
Germany W-Nr. 1.7225
Corresponding Standard DIN EN 10269-2014
Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
Classification Alloy Steel
Properties Strength
Density 7.85 g/cm3
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
diameter
d
mm
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Hardness
HBW
Impact Energy Absorption
KV2
J
-* +S - - - - ≤255 -
-* +A - - - - ≤241 -
-* +AC ≤630 - - ≥57 - -
d≤65** +QT 860~1060 ≥730 ≥14 ≥50 - ≥50
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
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
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 cast steel
China Germany European Standard
GB DIN EN/DIN W-Nr. EN Numerical Grade
ZG42CrMo GS-42CrMo4
GS-42CrMo4V
1.7225 G42CrMo4 1.7231
7 Approximate Comparison Table
China Japan United States International Organization for Standardization Germany
GB JIS ASTM/AISI ISO DIN EN/DIN
ML42CrMo SCM440 4140 42CrMo4E 42CrMo4

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