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China 宝钢Q/BQB KSKM50 轧制圆管坯 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: KSKM50 / KSKM50
Category Grade Standard Region/Area Standard Content
Metals KSKM50 Q/BQB 150 China 轧制圆管坯

Chemical composition(mass fraction)(wt.%) of the KSKM50

Element Min Max Similar
Cu - 0.2500 -
Ni - 0.2500 -
Cr - 0.2500 -
P - 0.0350 -
S - 0.0350 -
Mn 0.6000 0.9000 -
Si 0.1500 0.3500 -
C 0.4800 0.5300 -

Mechanical Properties of steel grade KSKM50

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)
718 (≥) 922 (≥) 11 21 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade KSKM50

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
14 - -     0.14 -  
419 286 - 42.3 244   -  
486 - 42 13.2   133 333

Heat Treatment of steel grade KSKM50

Heat treated : 1265°C - 1345°C

Technological Curves of steel grade KSKM50

Cross Reference Table (Equivalent Grade) of KSKM50

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