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France AFNOR NF F70 Structural forgings. Non-alloyed steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: F70 / F 70
Category Grade Standard Region/Area Standard Content
Metals F 70 NF A36-612 France Structural forgings. Non-alloyed steels

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

Element Min Max Similar

Mechanical Properties of steel grade F 70

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)
279 (≥) 365 (≥) 33 42 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade F 70

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
23 - -     0.44 -  
887 369 - 12.3 323   -  
526 - 21 31.2   431 111

Heat Treatment of steel grade F 70

Heat treated : 1834°C - 1518°C

Technological Curves of steel grade F 70

Cross Reference Table (Equivalent Grade) of F 70

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