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Japan DAIDO DH31-EX 工具钢产品列表 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: DH31-EX / DH31-EX
Category Grade Standard Region/Area Standard Content
Metals DH31-EX DAIDO TSPL Japan 工具钢产品列表

Chemical composition(mass fraction)(wt.%) of the DH31-EX

Element Min Max Similar

Mechanical Properties of steel grade DH31-EX

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)
569 (≥) 383 (≥) 41 11 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical Properties of steel grade DH31-EX

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
22 - -     0.42 -  
149 844 - 31.3 324   -  
131 - 34 21.2   244 141

Heat Treatment of steel grade DH31-EX

Heat treated : 1877°C - 1471°C

Technological Curves of steel grade DH31-EX

Cross Reference Table (Equivalent Grade) of DH31-EX

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