Aluminum alloy material and aluminum alloy brazing sheet
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United States of America Patent
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Oct 9, 2012
Grant Date -
Dec 31, 2009
app pub date -
Sep 2, 2009
filing date -
Mar 20, 2007
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Abstract
The present invention provides an aluminum alloy material which is used as a core material for an aluminum alloy brazing sheet and has superior strength at a high temperature. The aluminum alloy material of the present invention is used as a core material C1 for an aluminum alloy brazing sheet B31 (or B32) which has a filler alloy F formed on at least one side of the core material C1. The aluminum alloy material contains more than 2.5% by mass and 3.5% by mass or less of Cu, and the balance being made of aluminum and unavoidable impurities.
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