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18CrMnNiMo

China GB 18CrMnNiMo 合金结构钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 18CrMnNiMo / 18CrMnNiMo
Category Grade Standard Region/Area Standard Content
Metals 18CrMnNiMo GB/T 3077 China 合金结构钢

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

Element Min Max Similar
Ni 1.0000 1.3000 -
Mo 0.2000 0.3000 -
Cr 1.0000 1.3000 -
Mn 1.1000 1.4000 -
Si 0.1700 0.3700 -
C 0.1500 0.2100 -

Mechanical Properties of steel grade 18CrMnNiMo

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)
951 (≥) 285 (≥) 41 22 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical Properties of steel grade 18CrMnNiMo

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
41 - -     0.43 -  
987 574 - 44.3 333   -  
497 - 14 13.2   141 433

Heat Treatment of steel grade 18CrMnNiMo

Heat treated : 1287°C - 1357°C

Technological Curves of steel grade 18CrMnNiMo

Cross Reference Table (Equivalent Grade) of 18CrMnNiMo

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