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France AFNOR NF A33 Rolling stock. Recommended steels for rolling stock construction. II : Structural steels for general purposes and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A33 / A 33
Category Grade Standard Region/Area Standard Content
Metals A 33 NF F 80-102 France Rolling stock. Recommended steels for rolling stock construction. II : Structural steels for general purposes

Chemical composition(mass fraction)(wt.%) of the A 33

Element Min Max Similar

Mechanical Properties of steel grade A 33

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)
679 (≥) 277 (≥) 32 41 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical Properties of steel grade A 33

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
42 - -     0.32 -  
177 868 - 22.3 244   -  
666 - 11 41.2   224 312

Heat Treatment of steel grade A 33

Heat treated : 1346°C - 1223°C

Technological Curves of steel grade A 33

Cross Reference Table (Equivalent Grade) of A 33

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