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China 首钢Q/SG HC300P 汽车用含磷高强度冷轧钢板及钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: HC300P / HC300P
Category Grade Standard Region/Area Standard Content
Metals HC300P Q/SGZGS 327 China 汽车用含磷高强度冷轧钢板及钢带

Chemical composition(mass fraction)(wt.%) of the HC300P

Element Min Max Similar
C - 0.1000 -
Si - 0.5000 -
Mn - 0.7000 -
P - 0.1200 -
S - 0.0250 -
Alt 0.0150 - -

Mechanical Properties of steel grade HC300P

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)
559 (≥) 676 (≥) 23 23 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade HC300P

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 -  
687 871 - 44.3 341   -  
156 - 32 14.2   212 422

Heat Treatment of steel grade HC300P

Heat treated : 1162°C - 1515°C

Technological Curves of steel grade HC300P

Cross Reference Table (Equivalent Grade) of HC300P

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