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Japan JIS SMn2 机械结构用锰钢和锰铬钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SMn2 / SMn 2
Category Grade Standard Region/Area Standard Content
Metals SMn 2 JIS G4106 Japan 机械结构用锰钢和锰铬钢

Chemical composition(mass fraction)(wt.%) of the SMn 2

Element Min Max Similar
Si 0.1500 0.3500 -
S - 0.0300 -
P - 0.0300 -
Ni - 0.2500 -
Mn 1.3500 1.6500 -
Cr - 0.3500 -
C 0.3500 0.4100 -

Mechanical Properties of steel grade SMn 2

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)
876 (≥) 992 (≥) 12 31 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade SMn 2

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
21 - -     0.43 -  
729 721 - 23.3 322   -  
455 - 21 21.2   414 312

Heat Treatment of steel grade SMn 2

Heat treated : 1664°C - 1375°C

Technological Curves of steel grade SMn 2

Cross Reference Table (Equivalent Grade) of SMn 2

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