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Description

SK85 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: SK85
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel SK85
SK140
SK1
SK120
SK2 TC120
SK105
SK3 TC105
SK95
SK4
SK90
TC90

Chemical composition(mass fraction)(wt.%) of the SK85

 

C
Si
Mn
P
S
Cr Ni
 0.8-0.9 0.1-0.35  0.1-0.5   0.03 0.03  0.3  0.25 
Mo Al Cu Nb Ti V Ce
     0.25        
N Co Pb B Other    
             
             

Mechanical Properties of steel grade SK85

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)
544 (≥) 754 (≥) 11 12 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade SK85

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
41 - -     0.41 -  
893 864 - 41.3 433   -  
437 - 42 24.2   111 134

Heat Treatment of steel grade SK85

Heat treated : 1125°C - 1769°C

Technological Curves of steel grade SK85

Cross Reference Table (Equivalent Grade) of SK85

Grade Standard Country Application
SK85 JIS Japan Carbon tool steel

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