Weldable high strenght Al-Mg-Si alloy

US6939416B2 · kind B2 · utility

Assignee

• Corus Aluminum Walzprodukte GmbH · DE

Inventors

• Rinze Benedictus · Delft, NL
• Guido Weber · Andernach, DE
• Alfred Johann Peter Haszler · Vallendar, DE
• Christian Joachim Keidel · Montabaur, DE

Key dates

• Filing date: Jul 10, 2002
• Grant date: Sep 6, 2005
• Expiry date: Nov 8, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/12764
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The 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.