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Global 企业标准 RN7 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: RN7 / RN7
Category Grade Standard Region/Area Standard Content
Metals RN7 -- Global

Chemical composition(mass fraction)(wt.%) of the RN7

Element Min Max Similar

Mechanical Properties of steel grade RN7

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)
844 (≥) 551 (≥) 13 41 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade RN7

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 - -     0.13 -  
655 897 - 21.3 233   -  
668 - 41 34.2   214 223

Heat Treatment of steel grade RN7

Heat treated : 1318°C - 1637°C

Technological Curves of steel grade RN7

Cross Reference Table (Equivalent Grade) of RN7

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