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Japan JIS SKD5 合金工具钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SKD5 / SKD 5
Category Grade Standard Region/Area Standard Content
Metals SKD 5 JIS G4404 Japan 合金工具钢

Chemical composition(mass fraction)(wt.%) of the SKD 5

Element Min Max Similar
W 8.5000 9.5000 -
V 0.3000 0.5000 -
Si 0.1000 0.4000 -
S - 0.0200 -
P - 0.0300 -
Mn 0.1500 0.4500 -
Cr 2.5000 3.2000 -
C 0.2500 0.3500 -

Mechanical Properties of steel grade SKD 5

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)
744 (≥) 178 (≥) 34 44 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade SKD 5

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 - -     0.22 -  
531 361 - 34.3 124   -  
643 - 23 23.2   144 144

Heat Treatment of steel grade SKD 5

Heat treated : 1464°C - 1725°C

Technological Curves of steel grade SKD 5

Cross Reference Table (Equivalent Grade) of SKD 5

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