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China JB 3Cr2Mo 塑料模具成型部分用钢及其热处理技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 3Cr2Mo / 3Cr2Mo
Category Grade Standard Region/Area Standard Content
Metals 3Cr2Mo JB/T 6057 China 塑料模具成型部分用钢及其热处理技术条件

Chemical composition(mass fraction)(wt.%) of the 3Cr2Mo

Element Min Max Similar
P - 0.0300 -
S - 0.3000 -
Ni 1.4000 2.0000 -
Cr 1.4000 2.0000 -
Mo 0.3000 0.5500 -
Mn 0.6000 1.0000 -
Si 0.2000 0.8000 -
C 0.2800 0.4000 -

Mechanical Properties of steel grade 3Cr2Mo

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)
571 (≥) 327 (≥) 41 33 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade 3Cr2Mo

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
21 - -     0.21 -  
146 838 - 32.3 411   -  
211 - 44 11.2   223 114

Heat Treatment of steel grade 3Cr2Mo

Heat treated : 1552°C - 1688°C

Technological Curves of steel grade 3Cr2Mo

Cross Reference Table (Equivalent Grade) of 3Cr2Mo

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