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China 首钢Q/SG S315MC 汽车结构用热连轧钢板和钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S315MC / S315MC
Category Grade Standard Region/Area Standard Content
Metals S315MC Q/SGZGS 315 China 汽车结构用热连轧钢板和钢带

Chemical composition(mass fraction)(wt.%) of the S315MC

Element Min Max Similar
C - 0.1200 -
Si - 0.5000 -
Mn - 1.3000 -
P - 0.2500 -
S - 0.0200 -
Alt 0.0150 - -
Nb - 0.0900 -
Ti - 0.1500 -
V - 0.2000 -
Nb+V+Ti - 0.2200 -

Mechanical Properties of steel grade S315MC

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)
485 (≥) 654 (≥) 31 41 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade S315MC

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
33 - -     0.43 -  
693 138 - 31.3 232   -  
574 - 33 43.2   312 144

Heat Treatment of steel grade S315MC

Heat treated : 1183°C - 1796°C

Technological Curves of steel grade S315MC

Cross Reference Table (Equivalent Grade) of S315MC

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