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STF3

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STF3 STF4
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Description

Korea KS STF3 Carbide for cutting tools and STF3 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: STF3
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy STF3 KS Korea Carbide for cutting tools
STD4
STD5
STD5
STD6
STD6
STD61
STD61
STD62
STD62
STF3

Chemical composition(mass fraction)(wt.%) of the STF3

C(％) Si(％) Mn(％) Cr(％) Ni(％) Mo(％) V(%)
0.50-0.60 ≤0.35　　 0.60-1.00 0.90-1.20 0.25-0.60 0.30-0.50 ＜0.20

Mechanical Properties of steel grade STF3

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)
398 (≥) 529 (≥) 21 14 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade STF3

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
22 - -     0.24 -  
375 316 - 34.3 232   -  
395 - 14 34.2   141 311

Heat Treatment of steel grade STF3

Heat treated : 1385°C - 1176°C

Technological Curves of steel grade STF3

Cross Reference Table (Equivalent Grade) of STF3

Grade Standard Country Application
STF3 KS Korea Carbide for cutting tools
STF3 KS Korea Carbide for cutting tools
STF3 STF4
Available Suppliers
Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

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...

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