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China 宝钢Q/BQB S17C 机械结构用碳素厚钢板 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S17C / S17C
Category Grade Standard Region/Area Standard Content
Metals S17C Q/BQB 615 China 机械结构用碳素厚钢板

Chemical composition(mass fraction)(wt.%) of the S17C

Element Min Max Similar
S - 0.0300 -
P - 0.0300 -
Mn 0.3000 0.6000 -
Si 0.1500 0.3500 -
C 0.1500 0.2000 -
P - 0.0300 -
S - 0.0350 -
Mn 0.3000 0.6000 -
Si 0.1500 0.3500 -
C 0.1500 0.2000 -

Mechanical Properties of steel grade S17C

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)
633 (≥) 799 (≥) 23 12 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical Properties of steel grade S17C

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
12 - -     0.32 -  
132 354 - 12.3 331   -  
453 - 24 34.2   433 141

Heat Treatment of steel grade S17C

Heat treated : 1338°C - 1152°C

Technological Curves of steel grade S17C

Cross Reference Table (Equivalent Grade) of S17C

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