STF4

This page provides STF4 datasheet, STF4 mechanical properties, chemical element STF4, technical specifications of STF4 steel material properties. STF4 performance specifications.

KS STF4
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy STF4 KS Korea Carbide for cutting tools
STD5
STD6
STD6
STD61
STD61
STD62
STD62
STF3
STF3
STF4
Datasheet for:Steel Grades:Tool Steel And Hard Alloy:STF4

Chemical composition(mass fraction)(wt.%) of the STF4

C(%) Si(%) Mn(%) Cr(%) Ni(%) Mo(%) V(%)
0.50-0.60 ≤0.35   0.60-1.00 0.60-1.00 1.30-2.00 0.20-0.50 <0.20

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade STF4

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)
518 (≥) 937 (≥) 12 21 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 411
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 - -     0.32 -  
712 338 - 34.3 322   -  
722 - 42 34.2   142 412
Heat treated : 1374°C - 1835°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
STF4 KS Korea
Carbide for cutting tools
STF4 KS Korea
Carbide for cutting tools
STF4

Haihong International Trade (HK) CO., Limited

Stainless Steel, Special Steel, Compressor Blading, Turbine Blading, Superalloy Supplier.
STF4 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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