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China 宝钢Q/BQB S58C 机械结构用碳素厚钢板 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S58C / S58C
Category Grade Standard Region/Area Standard Content
Metals S58C Q/BQB 615 China 机械结构用碳素厚钢板

Chemical composition(mass fraction)(wt.%) of the S58C

Element Min Max Similar
S - 0.0300 -
P - 0.0300 -
Mn 0.6000 0.9000 -
Si 0.1500 0.3500 -
C 0.5500 0.6100 -
P - 0.0300 -
S - 0.0350 -
Mn 0.6000 0.9000 -
Si 0.1500 0.3500 -
C 0.5500 0.6100 -

Mechanical Properties of steel grade S58C

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)
653 (≥) 973 (≥) 32 44 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade S58C

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
13 - -     0.32 -  
742 878 - 32.3 423   -  
525 - 24 23.2   233 441

Heat Treatment of steel grade S58C

Heat treated : 1178°C - 1912°C

Technological Curves of steel grade S58C

Cross Reference Table (Equivalent Grade) of S58C

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