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Japan DAIDO GO4 冷作工具钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GO4 / GO4
Category Grade Standard Region/Area Standard Content
Metals GO4 DAIDO CWTS Japan 冷作工具钢

Chemical composition(mass fraction)(wt.%) of the GO4

Element Min Max Similar
Mo - - 1.4000
Cr - - 1.0000
Ni - 0.2500 -
Cu - 0.2500 -
S - 0.0300 -
P - 0.0300 -
Mn - - 2.0000
Si - - 0.3000
C - - 0.8500
Mo - - 1.4000
Cr - - 1.0000
Ni - 0.2500 -
Cu - 0.2500 -
S - 0.0300 -
P - 0.0300 -
Mn - - 2.0000
Si - - 0.3000
C - - 0.8500

Mechanical Properties of steel grade GO4

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)
672 (≥) 616 (≥) 11 34 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade GO4

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
43 - -     0.23 -  
156 571 - 23.3 222   -  
158 - 13 34.2   321 423

Heat Treatment of steel grade GO4

Heat treated : 1223°C - 1548°C

Technological Curves of steel grade GO4

Cross Reference Table (Equivalent Grade) of GO4

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