Available 24/7 at sales@steel-grades.com

Description

SK70 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: SK70
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel SK70
SK95
SK4
SK90
TC90
SK85
SK5
SK80
TC80
SK75
SK6

Chemical composition(mass fraction)(wt.%) of the SK70

 

 

C
Si
Mn
P
S
Cr Ni
 0.65-0.75 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 SK70

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)
781 (≥) 845 (≥) 14 43 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade SK70

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
21 - -     0.33 -  
954 587 - 12.3 114   -  
211 - 43 33.2   412 113

Heat Treatment of steel grade SK70

Heat treated : 1118°C - 1971°C

Technological Curves of steel grade SK70

Cross Reference Table (Equivalent Grade) of SK70

Grade Standard Country Application
SK70 JIS Japan Carbon tool steel

Available Suppliers

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com
  • Do you supply this SK70?
  • List your company on S&G now? Join
  • Non-paying users only
Sidebar RFQs Menu My Account
Top