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Japan JIS SK140 碳工具鋼鋼料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SK140 / SK 140
Category Grade Standard Region/Area Standard Content
Metals SK 140 JIS G4401 Japan 碳工具鋼鋼料

Chemical composition(mass fraction)(wt.%) of the SK 140

Element Min Max Similar

Mechanical Properties of steel grade SK 140

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)
459 (≥) 432 (≥) 11 34 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade SK 140

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
43 - -     0.43 -  
971 356 - 22.3 233   -  
842 - 32 44.2   333 142

Heat Treatment of steel grade SK 140

Heat treated : 1919°C - 1828°C

Technological Curves of steel grade SK 140

Cross Reference Table (Equivalent Grade) of SK 140

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