Aleris Aluminum Duffel Bvba

Aleris Aluminum Duffell Bvba

Ria Van Den Broeck

Andreas Ten Cate

Cheng Liu

Els Verboom

Michel Vanden Eynde

Arthur Speelman

The invention relates to a multilayer tube comprising a metal tube having an inner surface and an outer surface, a first polymeric layer bonded to the outer surface, and preferably a second polymeric layer bonded to the inner surface, and wherein the metal tube is made from an aluminium alloy having, in wt. %: Si 1.5 to 2.45, Fe 0.5 to 1.2, Mn 0.5 to 1.2, Cu 0.3 to 1, Mg 0.04 to 0.3, Ti&#x3c;0.25, Zn&#x3c;1.2, and other impurities or incidental elements, each &#x3c;0.05, total &#x3c;0.25, and the balance being aluminium.

Multilayer tube with an aluminum alloy core tube

The invention relates to an aluminum alloy product containing, in wt. %: Si 0.2 to 1.4; Fe+Mn 1.1 to 1.8; Cu 0.15 to 0.5; Mg&#x3c;0.2; Ti&#x3c;0.2; Zn&#x3c;1.5; impurities&#x3c;0.05 each, &#x3c;0.2 total, balance aluminum. This aluminum alloy product has high resistance to internal pressure when used as core layer for welded multilayer tubing. The invention relates also to a method of manufacturing such alloy product, and the use of such alloy in welded multilayer tubes.

Creep resistant aluminium alloy for multilayer tubes

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Tienen, Belgium

Ria Van Den Broeck