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Extrudability and Mechanical Properties of Alcan’s High Performance Al-Mg-Si

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Extrudability and Mechanical Properties of Alcan’s High Performance Al-Mg-Si Alloys

Alex Brassard, Nick Parson, T (Ram) Ramanan, Greg Lea, Gary Hay, and Christopher W. Jowett, Alcan Inc.


ABSTRACT --- AA6063 and AA6060 have been the dominant alloys in the soft alloy
extrusion market for many years. This paper covers investigations conducted by Alcan
at levels of magnesium below those of AA6063 and AA6060 alloys. The investigations
showed that by mapping the mechanical properties of various Mg and Si chemistry
ratios, it was possible to optimize extrudability while still meeting the strength
requirements of AA6063 T5 and T6. Commercial quantities of an Alcan alloy, 63080,
meeting the chemical limits of the newly registered AA6360 high performance alloy,
have been extruded by one of Alcan’s customers. The results showed improvements in
productivity of up to 25 percent for the high-performance alloy compared to AA6060.
Additionally, investigation is continuing into variants of the high-performance alloy that
would meet the finishing requirements for paint, matte and bright anodized finishes.

© Extrusion Technology for Aluminum Profiles Foundation (ET Foundation). All rights reserved. No part of The Proceedings may be reproduced in any form without the express written permission of the ET Foundation.

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