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China GJB 30CrMo 火炮零件用无缝钢管规范 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 30CrMo / 30CrMo
Category Grade Standard Region/Area Standard Content
Metals 30CrMo GJB 6483 China 火炮零件用无缝钢管规范

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

Element Min Max Similar
C 0.2600 0.3400 -
Si 0.1700 0.3700 -
Mn 0.4000 0.7000 -
P - 0.0250 -
S - 0.0200 -
Cr 0.8000 1.1000 -
Ni - 0.3000 -
Mo 0.1500 0.2500 -
Cu - 0.2500 -

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)
695 (≥) 145 (≥) 14 41 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

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
23 - -     0.41 -  
792 492 - 41.3 311   -  
293 - 22 43.2   314 323

Heat Treatment of steel grade 30CrMo

Heat treated : 1383°C - 1165°C

Technological Curves of steel grade 30CrMo

Cross Reference Table (Equivalent Grade) of 30CrMo

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