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China HB 30Cr3MoA 航空结构钢热处理工艺 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 30Cr3MoA / 30Cr3MoA
Category Grade Standard Region/Area Standard Content
Metals 30Cr3MoA HB/Z 136 China 航空结构钢热处理工艺

Chemical composition(mass fraction)(wt.%) of the 30Cr3MoA

Element Min Max Similar

Mechanical Properties of steel grade 30Cr3MoA

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 (≥) 272 (≥) 12 44 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade 30Cr3MoA

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 - -     0.21 -  
485 579 - 13.3 222   -  
469 - 22 21.2   411 131

Heat Treatment of steel grade 30Cr3MoA

Heat treated : 1762°C - 1637°C

Technological Curves of steel grade 30Cr3MoA

Cross Reference Table (Equivalent Grade) of 30Cr3MoA

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