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Description

SKS 8 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: SKS 8
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel SKS 8
SK65
SK7
SK60
SKS 11
SKS 2
SKS 21
SKS 5
SKS 51
SKS 7
SKS 81

Chemical composition(mass fraction)(wt.%) of the SKS 8

C
Si
Mn
P
S
Cr Ni
 1.3-1.5  0.35 0.5  0.03  0.03  0.2-0.5  ≤ 0.25
Mo Al Cu Nb Ti V Ce
    ≤0.25         
N Co Pb B Other    
             
             

Mechanical Properties of steel grade SKS 8

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)
981 (≥) 317 (≥) 42 24 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade SKS 8

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
31 - -     0.11 -  
325 587 - 14.3 322   -  
257 - 24 12.2   113 334

Heat Treatment of steel grade SKS 8

Heat treated : 1635°C - 1563°C

Technological Curves of steel grade SKS 8

Cross Reference Table (Equivalent Grade) of SKS 8

Grade Standard Country Application
SKS11 JIS Japan Alloy tool steel - Tool steel
SKS2 JIS Japan Alloy tool steel - Tool steel
SKS21 JIS Japan Alloy tool steel - Tool steel
SKS5 JIS Japan Alloy tool steel - Tool steel
SKS51 JIS Japan Alloy tool steel - Tool steel
SKS7 JIS Japan Alloy tool steel - Tool steel
SKS81 JIS Japan Alloy tool steel - Tool steel
SKS8 JIS Japan Alloy tool steel - Tool steel
SKS4 JIS Japan shock-resistant steel
SKS41 JIS Japan shock-resistant steel
SKS43 JIS Japan shock-resistant steel
SKS44 JIS Japan shock-resistant steel
SKS3 JIS Japan Cold Work Die Steel
SKS31 JIS Japan Cold Work Die Steel
SKS93 JIS Japan Cold Work Die Steel
SKS94 JIS Japan Cold Work Die Steel
SKS95 JIS Japan Cold Work Die Steel
SKS2M JIS Japan Cold rolled special steel strip
SKS5M JIS Japan Cold rolled special steel strip
SKS7M JIS Japan Cold rolled special steel strip

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