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Description

Japan JIS SKD61 Hot-work die steel and SKD61 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: SKD61
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy SKD61 JIS Japan Hot-work die steel
SKS94
SKS95
SKD1
SKD2
SKD10
SKD11
SKD12
SKD4
SKD5
SKD6

Chemical composition(mass fraction)(wt.%) of the SKD61

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Mo(%) V(%)
0.35-0.42 0.80-1.20 0.25-0.50 Max 0.030 Max 0.020 4.80-5.50 1.00-1.50 0.80-1.15

Mechanical Properties of steel grade SKD61

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)
264 (≥) 547 (≥) 22 32 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade SKD61

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
31 - -     0.24 -  
547 485 - 24.3 413   -  
989 - 34 41.2   414 133

Heat Treatment of steel grade SKD61

Heat treated : 1955°C - 1116°C

Technological Curves of steel grade SKD61

Cross Reference Table (Equivalent Grade) of SKD61

Grade Standard Country Application
SKD61 JIS Japan Hot-work die steel

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