SK4

This page provides SK4 datasheet, SK4 mechanical properties, chemical element SK4, technical specifications of SK4 steel material properties. SK4 performance specifications.

CNS SK4
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy SK4 CNS China Carbide for cutting tools
HS6-5-3
HS6-5-3C
HS6-5-3C
HS6-6-2
HS6-6-2
HS6-5-2-5
HS6-5-2-5
HS6-5-3-8
HS6-5-3-8
SK4
Datasheet for:Steel Grades:Tool Steel And Hard Alloy: SK4

Chemical composition(mass fraction)(wt.%) of the SK4

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%)
0.90-1.00 ≤0.35 ≤0.50 ≤0.03 ≤0.03 ≤0.20 ≤0.25 ≤0.30

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade SK4

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)
567 (≥) 295 (≥) 11 31 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 114
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
33 - -     0.23 -  
631 695 - 11.3 413   -  
143 - 21 32.2   341 131
Heat treated : 1454°C - 1142°C
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
SK140 JIS Japan
Carbon tool steel
SK1 JIS Japan
Carbon tool steel
SK120 JIS Japan
Carbon tool steel
SK105 JIS Japan
Carbon tool steel
SK4 CNS China
Carbide for cutting tools
SK4 CNS China
Carbide for cutting tools
SK4

Haihong International Trade (HK) CO., Limited

Stainless Steel, Special Steel, Compressor Blading, Turbine Blading, Superalloy Supplier.
SK4 can be supplied as steel plate/ sheet, round steel bar, steel tube/pipe, steel stripe, steel billet, steel ingot, steel wire rods. electroslag, forged ring/ block,etc.
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