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Global 企业标准 70Cr3Mo 支承辊用钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 70Cr3Mo / 70Cr3Mo
Category Grade Standard Region/Area Standard Content
Metals 70Cr3Mo -- Global 支承辊用钢

Chemical composition(mass fraction)(wt.%) of the 70Cr3Mo

Element Min Max Similar
Ni - 0.5000 -
Mo 0.6000 0.8000 -
Cr 2.6000 3.4000 -
S 2.6000 3.4000 -
P - 0.0250 -
Mn 0.4000 0.7000 -
Si 0.4000 0.7000 -
C 0.5800 0.7000 -

Mechanical Properties of steel grade 70Cr3Mo

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)
312 (≥) 981 (≥) 24 31 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade 70Cr3Mo

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
42 - -     0.11 -  
715 687 - 22.3 242   -  
352 - 31 43.2   434 432

Heat Treatment of steel grade 70Cr3Mo

Heat treated : 1584°C - 1324°C

Technological Curves of steel grade 70Cr3Mo

Cross Reference Table (Equivalent Grade) of 70Cr3Mo

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