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Germany DIN 70Cr2 低铬合金钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 70Cr2 / 70 Cr 2
Category Grade Standard Region/Area Standard Content
Metals 70 Cr 2 -- Germany 低铬合金钢

Chemical composition(mass fraction)(wt.%) of the 70 Cr 2

Element Min Max Similar
Si 0.2000 0.3000 -
S - 0.0300 -
P - 0.0300 -
Mn 0.7500 0.9000 -
Cr 0.5500 0.7000 -
C 0.6500 0.7000 -

Mechanical Properties of steel grade 70 Cr 2

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)
588 (≥) 626 (≥) 21 34 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical Properties of steel grade 70 Cr 2

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
43 - -     0.34 -  
579 864 - 41.3 214   -  
264 - 32 12.2   114 143

Heat Treatment of steel grade 70 Cr 2

Heat treated : 1667°C - 1914°C

Technological Curves of steel grade 70 Cr 2

Cross Reference Table (Equivalent Grade) of 70 Cr 2

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