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China GB 30CrMo 合金结构钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 30CrMo / 30CrMo
Category Grade Standard Region/Area Standard Content
Metals 30CrMo GB/T 3077 China 合金结构钢

Chemical composition(mass fraction)(wt.%) of the 30CrMo

Element Min Max Similar
Mo 0.1500 0.2500 -
Cr 0.8000 1.1000 -
Mn 0.4000 0.7000 -
Si 0.1700 0.3700 -
C 0.2600 0.3300 -

Mechanical Properties of steel grade 30CrMo

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)
616 (≥) 649 (≥) 33 43 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade 30CrMo

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
44 - -     0.12 -  
221 139 - 34.3 223   -  
675 - 34 42.2   444 314

Heat Treatment of steel grade 30CrMo

Heat treated : 1271°C - 1227°C

Technological Curves of steel grade 30CrMo

Cross Reference Table (Equivalent Grade) of 30CrMo

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