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SKD7

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SKD62 SKD8
#SKD7

Description

Japan JIS SKD7 Hot-work die steel and SKD7 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: SKD7
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy SKD7 JIS Japan Hot-work die steel
SKD1
SKD2
SKD10
SKD11
SKD12
SKD4
SKD5
SKD6
SKD61
SKD62

Chemical composition(mass fraction)(wt.%) of the SKD7

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Mo(％) V(%)
0.28-0.35 0.10-0.40 0.15-0.45 Max 0.030 Max 0.020 2.70-3.20 2.50-3.00 0.40-0.70

Mechanical Properties of steel grade SKD7

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)
377 (≥) 467 (≥) 13 21 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical Properties of steel grade SKD7

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
21 - -     0.34 -  
593 756 - 33.3 423   -  
826 - 31 44.2   114 231

Heat Treatment of steel grade SKD7

Heat treated : 1644°C - 1787°C

Technological Curves of steel grade SKD7

Cross Reference Table (Equivalent Grade) of SKD7

Grade Standard Country Application
SKD7 JIS Japan Hot-work die steel
SKD62 SKD8
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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