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France AFNOR NF FME8Q5 Iron and steel. Wire rod in non-alloy steel for coated electrodes. Grades and types and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: FME8Q5 / FME 8 Q5
Category Grade Standard Region/Area Standard Content
Metals FME 8 Q5 NF A35-055 France Iron and steel. Wire rod in non-alloy steel for coated electrodes. Grades and types

Chemical composition(mass fraction)(wt.%) of the FME 8 Q5

Element Min Max Similar
S - 0.0250 -
P - 0.0250 -
Ni - 0.1200 -
Mn 0.4000 0.6000 -
Cu - 0.1200 -
Cr+Ni+Cu - 0.3000 -
Cr - 0.1200 -
C 0.0500 0.1000 -

Mechanical Properties of steel grade FME 8 Q5

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)
884 (≥) 769 (≥) 42 13 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade FME 8 Q5

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
33 - -     0.11 -  
213 323 - 33.3 113   -  
234 - 43 41.2   322 312

Heat Treatment of steel grade FME 8 Q5

Heat treated : 1158°C - 1449°C

Technological Curves of steel grade FME 8 Q5

Cross Reference Table (Equivalent Grade) of FME 8 Q5

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