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SKH55

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SKH54 SKH56
#SKH55

Description

Japan JIS SKH55 W-phase system high-speed tool steel and SKH55 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: SKH55
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy SKH55 JIS Japan W-phase system high-speed tool steel
SKH2
SKH3
SKH4
SKH10
SKH40
SKH50
SKH51
SKH52
SKH53
SKH54

Chemical composition(mass fraction)(wt.%) of the SKH55

C(％) Si(％) Mn(％) Cr(％) Mo(％) V(%) W(%) Co(%)
0.87-0.95 Max 0.45 Max 0.40 3.80-4.50 4.70-5.20 1.70-2.10 5.90-6.70 4.50-5.00

Mechanical Properties of steel grade SKH55

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)
657 (≥) 148 (≥) 43 22 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical Properties of steel grade SKH55

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 - -     0.32 -  
867 967 - 34.3 323   -  
973 - 31 22.2   122 244

Heat Treatment of steel grade SKH55

Heat treated : 1249°C - 1732°C

Technological Curves of steel grade SKH55

Cross Reference Table (Equivalent Grade) of SKH55

Grade Standard Country Application
SKH55 JIS Japan W-phase system high-speed tool steel
SKH54 SKH56
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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