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France AFNOR NF FR8 Iron and steel. Non-alloy steel wire rod for products made by hot or cold forming. Types and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: FR8 / FR 8
Category Grade Standard Region/Area Standard Content
Metals FR 8 NF A35-053 France Iron and steel. Non-alloy steel wire rod for products made by hot or cold forming. Types

Chemical composition(mass fraction)(wt.%) of the FR 8

Element Min Max Similar

Mechanical Properties of steel grade FR 8

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)
584 (≥) 686 (≥) 44 34 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade FR 8

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
44 - -     0.31 -  
378 169 - 12.3 312   -  
872 - 41 12.2   311 343

Heat Treatment of steel grade FR 8

Heat treated : 1239°C - 1731°C

Technological Curves of steel grade FR 8

Cross Reference Table (Equivalent Grade) of FR 8

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