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China 首钢Q/SG HC220B 烘烤硬化高强度冷轧钢板和钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: HC220B / HC220B
Category Grade Standard Region/Area Standard Content
Metals HC220B Q/SGZGS 0347 China 烘烤硬化高强度冷轧钢板和钢带

Chemical composition(mass fraction)(wt.%) of the HC220B

Element Min Max Similar
C - 0.0600 -
Mn - 0.7000 -
P - 0.0800 -
S - 0.0250 -
Alt 0.0150 - -

Mechanical Properties of steel grade HC220B

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)
781 (≥) 448 (≥) 14 33 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade HC220B

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
22 - -     0.21 -  
829 189 - 12.3 114   -  
268 - 14 43.2   133 132

Heat Treatment of steel grade HC220B

Heat treated : 1336°C - 1511°C

Technological Curves of steel grade HC220B

Cross Reference Table (Equivalent Grade) of HC220B

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