Multilayer tube with an aluminum alloy core tube
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United States of America Patent
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Dec 24, 2013
Grant Date -
Sep 20, 2012
app pub date -
Sep 29, 2010
filing date -
Oct 8, 2009
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Abstract
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<0.25, Zn<1.2, and other impurities or incidental elements, each <0.05, total <0.25, and the balance being aluminium.
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