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18CrNiMo6

China GB 18CrNiMo6 合金结构钢技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 18CrNiMo6 / 18CrNiMo6
Category Grade Standard Region/Area Standard Content
Metals 18CrNiMo6 GB 3077 China 合金结构钢技术条件

Chemical composition(mass fraction)(wt.%) of the 18CrNiMo6

Element Min Max Similar
C 0.1500 0.2100 -
Si - 0.4000 -
Mn 0.5000 0.9000 -
P - 0.0250 -
S - 0.0350 -
Cr 1.5000 1.8000 -
Mo 0.2500 0.3500 -
Ni 1.4000 1.7000 -

Mechanical Properties of steel grade 18CrNiMo6

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)
975 (≥) 495 (≥) 41 14 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade 18CrNiMo6

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
21 - -     0.32 -  
494 326 - 34.3 231   -  
485 - 31 34.2   131 122

Heat Treatment of steel grade 18CrNiMo6

Heat treated : 1947°C - 1389°C

Technological Curves of steel grade 18CrNiMo6

Cross Reference Table (Equivalent Grade) of 18CrNiMo6

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