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SKS21

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SKS2 SKS5
#SKS21

Description

Japan JIS SKS21 Alloy tool steel - Tool steel and SKS21 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: SKS21
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy SKS21 JIS Japan Alloy tool steel - Tool steel
TC80
SK75
SK6
SK70
TC70
SK65
SK7
SK60
SKS11
SKS2

Chemical composition(mass fraction)(wt.%) of the SKS21

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) V(%) W(%)
1.00-1.10 Max 0.35 Max 0.50 Max 0.030 Max 0.030 0.20-0.50 0.10-0.25 0.50-1.00

Mechanical Properties of steel grade SKS21

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)
827 (≥) 366 (≥) 33 21 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical Properties of steel grade SKS21

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 - -     0.11 -  
298 794 - 44.3 444   -  
331 - 12 22.2   231 432

Heat Treatment of steel grade SKS21

Heat treated : 1834°C - 1667°C

Technological Curves of steel grade SKS21

Cross Reference Table (Equivalent Grade) of SKS21

Grade Standard Country Application
SKS21 JIS Japan Alloy tool steel - Tool steel
SKS2 SKS5
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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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