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SKH4

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SKH3 SKH10
#SKH4

Description

Japan JIS SKH4 Tungsten series high speed tool steel and SKH4 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: SKH4
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy SKH4 JIS Japan Tungsten series high speed tool steel
SKD6
SKD61
SKD62
SKD7
SKD8
SKT3
SKT4
SKT6
SKH2
SKH3

Chemical composition(mass fraction)(wt.%) of the SKH4

C(％) Si(％) Mn(％) Cr(％) V(%) W(%) Co(%)
0.73-0.83 Max 0.45 Max 0.40 3.80-4.50 1.00-1.50 17.00-19.00 9.00-11.00

Mechanical Properties of steel grade SKH4

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)
562 (≥) 488 (≥) 34 33 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade SKH4

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
32 - -     0.32 -  
411 636 - 31.3 342   -  
454 - 23 33.2   213 343

Heat Treatment of steel grade SKH4

Heat treated : 1665°C - 1264°C

Technological Curves of steel grade SKH4

Cross Reference Table (Equivalent Grade) of SKH4

Grade Standard Country Application
SKH4 JIS Japan Tungsten series high speed tool steel
SKH40 JIS Japan Powder metallurgy high-speed tool steel
SKH3 SKH10
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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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