Weldable high strength al-mg-si alloy

Details Weldable high strength al-mg-si alloy Weldable high strength al-mg-si alloy

C - Chemistry, Metallurgy

22

C

C22C 21/02 (2006.01) C22F 1/043 (2006.01)

Patent

CA 2450767

This invention relates to a weldable, high-strength aluminium alloy wrought product, which may be in the form of a rolled, extruded or forged form, containing the elements, in weight percent, Si 0.8 to 1.3, Cu 0.2 to 1.0, Mn 0.5 to 1.1, Mg 0.45 to 1.0, Ce 0.01 to 0.25, and preferably added in the form of a Misch Metal, Fe 0.01 to 0.3, Zr<0.25, Cr<0.25, Zn<1.4, Ti<0.25, V<0.25, others each <0.05 and total<0.15, balance aluminium. The invention relates also to a method of manufacturing such an aluminium alloy product.

L'invention concerne un produit corroyé en alliage d'aluminium haute résistance soudable, se présentant sous forme laminée, extrudée ou forgée et contenant les éléments suivants, en pourcentages en poids : Si 0.8 à 1.3, Cu 0.2 à 1.0, Mn 0.5 à 1.1, Mg 0.45 à 1.0, Ce 0.01 à 0.25, ces éléments étant de préférence additionnés pour former un mischmétal, Fe 0.01 à 0.3, Zr < 0.25, Cr < 0.25, Zn < 1.4, Ti < 0.25, V < 0.25, d'autres étant chacun < 0.05 pour un total < 0.15, le reste étant de l'aluminium. La présente invention porte également sur un procédé pour fabriquer un produit en alliage d'aluminium de ce type.

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