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Global 企业标准 JK7391 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: JK7391 / JK 7391
Category Grade Standard Region/Area Standard Content
Metals JK 7391 -- Global

Chemical composition(mass fraction)(wt.%) of the JK 7391

Element Min Max Similar
W - - 4.5000
Other - - 16.5000
Ni - - -
Mo - - 17.0000
Fe - - 5.5000

Mechanical Properties of steel grade JK 7391

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)
541 (≥) 979 (≥) 13 11 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade JK 7391

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
33 - -     0.33 -  
182 421 - 12.3 213   -  
977 - 41 34.2   331 231

Heat Treatment of steel grade JK 7391

Heat treated : 1981°C - 1886°C

Technological Curves of steel grade JK 7391

Cross Reference Table (Equivalent Grade) of JK 7391

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