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56 SiCrV 7

France AFNOR NF 56SiCrV7 Iron and steel. Special structural steels suitable for the manufacture of suspension components and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 56SiCrV7 / 56 SiCrV 7
Category Grade Standard Region/Area Standard Content
Metals 56 SiCrV 7 NF A35-571 France Iron and steel. Special structural steels suitable for the manufacture of suspension components

Chemical composition(mass fraction)(wt.%) of the 56 SiCrV 7

Element Min Max Similar
V 0.0700 0.2500 -
Si 1.4500 1.6000 -
S - 0.0250 -
P - 0.0250 -
Mn 0.5000 0.7000 -
Cr 0.5000 0.8000 -
C 0.5400 0.6000 -

Mechanical Properties of steel grade 56 SiCrV 7

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)
495 (≥) 451 (≥) 41 41 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade 56 SiCrV 7

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 - -     0.21 -  
176 118 - 41.3 314   -  
924 - 21 33.2   313 324

Heat Treatment of steel grade 56 SiCrV 7

Heat treated : 1143°C - 1136°C

Technological Curves of steel grade 56 SiCrV 7

Cross Reference Table (Equivalent Grade) of 56 SiCrV 7

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