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42 MnNiCrB 4-3

Germany DIN 42MnNiCrB4-3 Heat treatable alloyed MnNiCr steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 42MnNiCrB4-3 / 42 MnNiCrB 4-3
Category Grade Standard Region/Area Standard Content
Metals 42 MnNiCrB 4-3 -- Germany Heat treatable alloyed MnNiCr steel

Chemical composition(mass fraction)(wt.%) of the 42 MnNiCrB 4-3

Element Min Max Similar

Mechanical Properties of steel grade 42 MnNiCrB 4-3

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)
384 (≥) 491 (≥) 33 14 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade 42 MnNiCrB 4-3

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
32 - -     0.43 -  
755 252 - 43.3 432   -  
522 - 24 31.2   131 344

Heat Treatment of steel grade 42 MnNiCrB 4-3

Heat treated : 1443°C - 1976°C

Technological Curves of steel grade 42 MnNiCrB 4-3

Cross Reference Table (Equivalent Grade) of 42 MnNiCrB 4-3

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