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France AFNOR NF 3/240 Welding and thermal spraying. Filer products for weld-surfacing and/or coating. Classification. Codification ot the chemical composition and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 3/240 / 3/240
Category Grade Standard Region/Area Standard Content
Metals 3/240 NF A81-381 France Welding and thermal spraying. Filer products for weld-surfacing and/or coating. Classification. Codification ot the chemical composition

Chemical composition(mass fraction)(wt.%) of the 3/240

Element Min Max Similar

Mechanical Properties of steel grade 3/240

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)
346 (≥) 844 (≥) 23 11 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade 3/240

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
43 - -     0.42 -  
475 756 - 34.3 234   -  
444 - 34 33.2   131 311

Heat Treatment of steel grade 3/240

Heat treated : 1176°C - 1486°C

Technological Curves of steel grade 3/240

Cross Reference Table (Equivalent Grade) of 3/240

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