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France AFNOR NF FGL250 Founding. Grey cast irons and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: FGL250 / FGL 250
Category Grade Standard Region/Area Standard Content
Metals FGL 250 NF A32-101 France Founding. Grey cast irons

Chemical composition(mass fraction)(wt.%) of the FGL 250

Element Min Max Similar
C 2.0000 - -

Mechanical Properties of steel grade FGL 250

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)
859 (≥) 765 (≥) 21 42 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical Properties of steel grade FGL 250

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
31 - -     0.42 -  
192 167 - 41.3 214   -  
937 - 12 41.2   434 322

Heat Treatment of steel grade FGL 250

Heat treated : 1829°C - 1653°C

Technological Curves of steel grade FGL 250

Cross Reference Table (Equivalent Grade) of FGL 250

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