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40CrMnNiMo8-6-4

Germany DIN 40CrMnNiMo8-6-4 工具钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 40CrMnNiMo8-6-4 / 40CrMnNiMo8-6-4
Category Grade Standard Region/Area Standard Content
Metals 40CrMnNiMo8-6-4 DIN EN ISO 4957 Germany 工具钢

Chemical composition(mass fraction)(wt.%) of the 40CrMnNiMo8-6-4

Element Min Max Similar

Mechanical Properties of steel grade 40CrMnNiMo8-6-4

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)
363 (≥) 384 (≥) 32 21 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade 40CrMnNiMo8-6-4

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
41 - -     0.12 -  
655 332 - 42.3 134   -  
291 - 13 22.2   331 143

Heat Treatment of steel grade 40CrMnNiMo8-6-4

Heat treated : 1352°C - 1319°C

Technological Curves of steel grade 40CrMnNiMo8-6-4

Cross Reference Table (Equivalent Grade) of 40CrMnNiMo8-6-4

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