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42 CrMoV 7-3

Germany DIN 42CrMoV7-3 Heat treatable alloyed CrMnMoV steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 42CrMoV7-3 / 42 CrMoV 7-3
Category Grade Standard Region/Area Standard Content
Metals 42 CrMoV 7-3 -- Germany Heat treatable alloyed CrMnMoV steel

Chemical composition(mass fraction)(wt.%) of the 42 CrMoV 7-3

Element Min Max Similar
V 0.0700 0.1200 -
Si 0.1500 0.3500 -
S - 0.0350 -
P - 0.0350 -
Mo 0.3000 0.4000 -
Mn 0.5000 0.8000 -
Cr 1.6000 1.9000 -
C 0.3800 0.4500 -

Mechanical Properties of steel grade 42 CrMoV 7-3

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)
351 (≥) 127 (≥) 14 12 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical Properties of steel grade 42 CrMoV 7-3

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
12 - -     0.21 -  
317 378 - 33.3 114   -  
984 - 34 33.2   343 413

Heat Treatment of steel grade 42 CrMoV 7-3

Heat treated : 1321°C - 1896°C

Technological Curves of steel grade 42 CrMoV 7-3

Cross Reference Table (Equivalent Grade) of 42 CrMoV 7-3

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