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Japan JIS SMnC3 机械结构用锰钢和锰铬钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SMnC3 / SMnC 3
Category Grade Standard Region/Area Standard Content
Metals SMnC 3 JIS G4106 Japan 机械结构用锰钢和锰铬钢

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

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 0.7000 -
C 0.4000 0.4600 -

Mechanical Properties of steel grade SMnC 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)
474 (≥) 825 (≥) 23 21 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade SMnC 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
14 - -     0.23 -  
677 124 - 33.3 121   -  
294 - 11 33.2   144 322

Heat Treatment of steel grade SMnC 3

Heat treated : 1671°C - 1996°C

Technological Curves of steel grade SMnC 3

Cross Reference Table (Equivalent Grade) of SMnC 3

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