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

Datasheet for: Metals: ROK / ROK
Category Grade Standard Region/Area Standard Content
Metals ROK -- Global

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

Element Min Max Similar
Si - 0.3000 -
Mn - 0.3000 -
Cr - 11.5000 -
C - 2.0500 -

Mechanical Properties of steel grade ROK

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)
247 (≥) 178 (≥) 31 21 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade ROK

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
24 - -     0.24 -  
439 137 - 23.3 241   -  
379 - 42 24.2   313 113

Heat Treatment of steel grade ROK

Heat treated : 1216°C - 1836°C

Technological Curves of steel grade ROK

Cross Reference Table (Equivalent Grade) of ROK

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