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China 唐山国丰Q/TGF S20C 结构用热轧钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S20C / S20C
Category Grade Standard Region/Area Standard Content
Metals S20C Q/TGF 303 China 结构用热轧钢带

Chemical composition(mass fraction)(wt.%) of the S20C

Element Min Max Similar
C 0.1800 0.2300 -
Si 0.1500 0.3500 -
Mn 0.3000 0.6000 -
P - 0.0300 -
S - 0.0350 -
Cu - 0.2000 -
Cr - 0.1500 -
Ni - 0.1500 -

Mechanical Properties of steel grade S20C

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)
131 (≥) 684 (≥) 43 12 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical Properties of steel grade S20C

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
44 - -     0.31 -  
942 291 - 44.3 322   -  
142 - 11 32.2   312 242

Heat Treatment of steel grade S20C

Heat treated : 1829°C - 1354°C

Technological Curves of steel grade S20C

Cross Reference Table (Equivalent Grade) of S20C

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