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China GB 42SiMn 合金结构钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 42SiMn / 42SiMn
Category Grade Standard Region/Area Standard Content
Metals 42SiMn GB/T 3077 China 合金结构钢

Chemical composition(mass fraction)(wt.%) of the 42SiMn

Element Min Max Similar

Mechanical Properties of steel grade 42SiMn

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)
638 (≥) 813 (≥) 34 21 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade 42SiMn

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
13 - -     0.22 -  
395 956 - 14.3 143   -  
843 - 32 24.2   322 114

Heat Treatment of steel grade 42SiMn

Heat treated : 1411°C - 1443°C

Technological Curves of steel grade 42SiMn

Cross Reference Table (Equivalent Grade) of 42SiMn

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