Aluminium extrusion alloy

US6391129B1 · kind B1 · utility

Assignees

• Corus Aluminum NV · BE
• Corus Aluminum Walzprodukte GmbH · DE

Inventors

• Timothy Hurd · Sumner, US
• Klaus Vieregge · Nauort, DE
• Louis Walter Marie Paul Tack · Reet, BE
• Arne Mulkers · Antwerpen, BE

Key dates

• Filing date: Jun 7, 2000
• Grant date: May 21, 2002
• Expiry date: Jun 7, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23K2103/10
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to an aluminium extrusion alloy comprising in weight percent: Mn 1.0-1.4, Cu 0.2-2.0, Mg 0.1-0.6, Si 0.15-1.0, Fe 0.8 max., Zn 0.25 max., Ti 0.15 max., Cr 0.35 max., Zr and/or V in total 0.25 max., others up to 0.05 each, total 0.15, balance aluminium, and with the proviso that (Cu+Mg)>0.7, and which aluminium extrusion alloy is particularly suitable for application in brazed assemblies, and the invention further relates to a method of its manufacture.