WELDABLE ALUMINIUM ALLOY STRUCTURAL COMPONENT

摘要

Improved shape and strength of the weld in a welded structure are obtained by use of a weldable aluminium product comprising a structural component which is a sheet, a plate or an extruded body and is made of an aluminium alloy containing not more than 1.5 wt % Zn. This component has, adhered on at least one side, a cladding layer made of an AA7xxx-series alloy having a corrosion potential lower than that of said alloy of said structural component. The alloy of the structural component is preferably an AA5xxx-series alloy containing Mg in the range 2 to 6 wt %.