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China GB 40MnBH 保证淬透性结构钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 40MnBH / 40MnBH
Category Grade Standard Region/Area Standard Content
Metals 40MnBH GB/T 5216 China 保证淬透性结构钢

Chemical composition(mass fraction)(wt.%) of the 40MnBH

Element Min Max Similar

Mechanical Properties of steel grade 40MnBH

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)
111 (≥) 191 (≥) 41 42 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade 40MnBH

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
31 - -     0.21 -  
973 558 - 22.3 423   -  
888 - 44 23.2   132 221

Heat Treatment of steel grade 40MnBH

Heat treated : 1311°C - 1148°C

Technological Curves of steel grade 40MnBH

Cross Reference Table (Equivalent Grade) of 40MnBH

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