Weldable metal article
AssigneeAleris Aluminum Koblenz GmbH
InventorsAndrew Norman, Sabine Spangel
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Abstract
The invention relates to an extruded or rolled clad metal article having a core metal layer and a cladding metal layer on at least one surface of the core layer, wherein the metals of the core metal layer and the cladding metal layer are each aluminum alloys, preferably an aluminum-magnesium alloy, having at least Sc in a range of 0.05% to 1%, and wherein the Sc-content in the core metal layer is lower than in the cladding metal layer. This further relates to a welded structure incorporating such a metal article.
Claims18
An extruded or rolled clad metal article having a core metal layer and a cladding metal layer on at least one surface of the core layer, wherein said metals of said core metal layer and said cladding metal layer are each aluminium alloys having 3% to 8% Mg and Sc in a range of 0.05% to 1%, and wherein the Sc-content in the core metal layer is at least 0.02% lower than in said cladding metal layer.
Dependencies are inferred from the claim text.