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40CrNi2MoA

Global 企业标准 40CrNi2MoA and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 40CrNi2MoA / 40CrNi2MoA
Category Grade Standard Region/Area Standard Content
Metals 40CrNi2MoA -- Global

Chemical composition(mass fraction)(wt.%) of the 40CrNi2MoA

Element Min Max Similar
C 0.3800 0.4300 -
Cr 0.7000 0.9000 -
Ni 1.6500 2.0000 -
Mo 0.2000 0.3000 -
Mn 0.6000 0.9000 -
Si 0.2000 0.3500 -
P - 0.0200 -
Cu - 0.2500 -
S - 0.0150 -

Mechanical Properties of steel grade 40CrNi2MoA

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)
678 (≥) 422 (≥) 12 34 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade 40CrNi2MoA

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
14 - -     0.13 -  
518 384 - 24.3 144   -  
876 - 43 32.2   443 332

Heat Treatment of steel grade 40CrNi2MoA

Heat treated : 1927°C - 1875°C

Technological Curves of steel grade 40CrNi2MoA

Cross Reference Table (Equivalent Grade) of 40CrNi2MoA

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