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Japan JIS SCMnM3 结构用高抗拉强度碳钢铸件和低合金钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SCMnM3 / SCMnM 3
Category Grade Standard Region/Area Standard Content
Metals SCMnM 3 JIS G5111 Japan 结构用高抗拉强度碳钢铸件和低合金钢

Chemical composition(mass fraction)(wt.%) of the SCMnM 3

Element Min Max Similar

Mechanical Properties of steel grade SCMnM 3

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)
371 (≥) 996 (≥) 31 23 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade SCMnM 3

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
42 - -     0.32 -  
323 985 - 41.3 114   -  
814 - 23 31.2   122 243

Heat Treatment of steel grade SCMnM 3

Heat treated : 1535°C - 1671°C

Technological Curves of steel grade SCMnM 3

Cross Reference Table (Equivalent Grade) of SCMnM 3

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