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Global 企业标准 JK7201 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: JK7201 / JK 7201
Category Grade Standard Region/Area Standard Content
Metals JK 7201 -- Global

Chemical composition(mass fraction)(wt.%) of the JK 7201

Element Min Max Similar
W - - 13.0000
Si - - 1.0000
Ni - 3.0000 -
Mn - - 1.0000
Fe - 2.5000 -
Cr - - 31.0000
Co - - -
C - - 2.4500

Mechanical Properties of steel grade JK 7201

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)
916 (≥) 628 (≥) 13 44 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical Properties of steel grade JK 7201

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
23 - -     0.22 -  
785 229 - 11.3 132   -  
247 - 43 34.2   131 142

Heat Treatment of steel grade JK 7201

Heat treated : 1228°C - 1953°C

Technological Curves of steel grade JK 7201

Cross Reference Table (Equivalent Grade) of JK 7201

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