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STS7

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STS7 STS8
#STS7

Description

Korea KS STS7 Carbide for cutting tools and STS7 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: STS7
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy STS7 KS Korea Carbide for cutting tools
STS11
STS2
STS2
STS21
STS21
STS5
STS5
STS51
STS51
STS7

Chemical composition(mass fraction)(wt.%) of the STS7

C(％) Si(％) Mn(％) Cr(％) V(%) W(%)
1.10-1.20 ≤0.35 ≤0.50 0.20-0.50 ＜0.20 2.00-2.50

Mechanical Properties of steel grade STS7

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)
277 (≥) 848 (≥) 13 24 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade STS7

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
24 - -     0.12 -  
993 791 - 12.3 331   -  
156 - 24 33.2   412 443

Heat Treatment of steel grade STS7

Heat treated : 1859°C - 1273°C

Technological Curves of steel grade STS7

Cross Reference Table (Equivalent Grade) of STS7

Grade Standard Country Application
STS7 KS Korea Carbide for cutting tools
STS7 KS Korea Carbide for cutting tools
STS7 STS8
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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