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18MnMoNbR

China GB 18MnMoNbR 压力容器用钢板 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 18MnMoNbR / 18MnMoNbR
Category Grade Standard Region/Area Standard Content
Metals 18MnMoNbR GB 6654 China 压力容器用钢板

Chemical composition(mass fraction)(wt.%) of the 18MnMoNbR

Element Min Max Similar

Mechanical Properties of steel grade 18MnMoNbR

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)
678 (≥) 353 (≥) 42 11 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade 18MnMoNbR

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
13 - -     0.41 -  
335 854 - 44.3 323   -  
869 - 12 11.2   441 132

Heat Treatment of steel grade 18MnMoNbR

Heat treated : 1915°C - 1611°C

Technological Curves of steel grade 18MnMoNbR

Cross Reference Table (Equivalent Grade) of 18MnMoNbR

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