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Description

Japan JIS SKT3 Hot-work die steel and SKT3 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: SKT3
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy SKT3 JIS Japan Hot-work die steel
SKD10
SKD11
SKD12
SKD4
SKD5
SKD6
SKD61
SKD62
SKD7
SKD8

Chemical composition(mass fraction)(wt.%) of the SKT3

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Mo(%)
0.50-0.60 Max 0.35 Max 0.60 Max 0.030 Max 0.020 0.90-1.20 0.30-0.50

Mechanical Properties of steel grade SKT3

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)
771 (≥) 281 (≥) 41 22 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade SKT3

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
14 - -     0.33 -  
519 481 - 22.3 423   -  
874 - 24 13.2   443 424

Heat Treatment of steel grade SKT3

Heat treated : 1695°C - 1576°C

Technological Curves of steel grade SKT3

Cross Reference Table (Equivalent Grade) of SKT3

Grade Standard Country Application
SKT3 JIS Japan Hot-work die steel

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