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42 CrMoS 4

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Germany DIN 42CrMoS4 Bright steel products - Technical delivery conditions - Part 5: Steels for quenching and tempering and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 42CrMoS4 / 42 CrMoS 4
Category Grade Standard Region/Area Standard Content
Metals 42 CrMoS 4 DIN EN 10277-5 Germany Bright steel products - Technical delivery conditions - Part 5: Steels for quenching and tempering

Chemical composition(mass fraction)(wt.%) of the 42 CrMoS 4

Element Min Max Similar
Si - 0.3000 -
S 0.0200 0.0400 -
P - 0.0250 -
Mo 0.1500 0.3000 -
Mn 0.6000 0.9000 -
Cu - 0.2500 -
Cr 0.9000 1.2000 -
C 0.3800 0.4500 -
Si - 0.4000 -
S 0.0200 0.0400 -
P - 0.0350 -
Mo 0.1500 0.3000 -
Mn 0.6000 0.9000 -
Cr 0.9000 1.2000 -
C 0.3800 0.4500 -
Si - 0.4000 -
S 0.0200 0.0400 -
P - 0.0350 -
Other - - -
Mo 0.1500 0.3000 -
Mn 0.6000 0.9000 -
Cr 0.9000 1.2000 -
C 0.3800 0.4500 -

Mechanical Properties of steel grade 42 CrMoS 4

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
911 (≥) 939 (≥) 33 13 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade 42 CrMoS 4

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
44 - -     0.33 -  
547 938 - 44.3 344   -  
279 - 13 23.2   441 424

Heat Treatment of steel grade 42 CrMoS 4

Heat treated : 1279°C - 1172°C

Technological Curves of steel grade 42 CrMoS 4

Cross Reference Table (Equivalent Grade) of 42 CrMoS 4

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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