High-strength aluminum alloy clad material for heat exchangers exhibiting excellent corrosion resistance

1. Field of the Invention A high-strength aluminum alloy clad material for heat exchangers which excels in corrosion resistance and formability before brazing and has improved strength after brazing. The aluminum alloy clad material is made up of a core material and a brazing material, with one or b...

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Bibliographic Details
Main Authors Shoji, Yoshifusa, Maeda, Kohichi, Fukuda, Toshihiko
Format Patent
LanguageEnglish
Published 26.03.2002
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Summary:1. Field of the Invention A high-strength aluminum alloy clad material for heat exchangers which excels in corrosion resistance and formability before brazing and has improved strength after brazing. The aluminum alloy clad material is made up of a core material and a brazing material, with one or both sides of the core material clad with the brazing material. The core material is made up of an aluminum alloy containing from 0.3% to less than 0.6% of Mn, from more than 0.6% to 1.0% of Cu, less than 0.1% of Si, 0.3% or less of Fe, and from 0.06% to 0.35% of Ti, with the remainder being Al and impurities; and the brazing material used to clad the core material is made up of an Al-Si aluminum alloy in which the Ca content is limited to 0.006% or less.