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Japan JIS SK85 碳工具鋼鋼料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SK85 / SK 85
Category Grade Standard Region/Area Standard Content
Metals SK 85 JIS G4401 Japan 碳工具鋼鋼料

Chemical composition(mass fraction)(wt.%) of the SK 85

Element Min Max Similar
Si 0.1000 0.3500 -
S - 0.0300 -
P - 0.0300 -
Ni - 0.2500 -
Mn 0.1000 0.5000 -
Cu - 0.2500 -
Cr - 0.3000 -
C 0.8000 0.9000 -

Mechanical Properties of steel grade SK 85

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)
752 (≥) 878 (≥) 24 12 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical Properties of steel grade SK 85

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 - -     0.21 -  
849 257 - 44.3 312   -  
147 - 33 24.2   141 333

Heat Treatment of steel grade SK 85

Heat treated : 1991°C - 1363°C

Technological Curves of steel grade SK 85

Cross Reference Table (Equivalent Grade) of SK 85

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