| 摘要 |
PROBLEM TO BE SOLVED: To provide a high strength aluminum alloy brazing sheet for heat exchanger, excellent in intergranular corrosion resistance. SOLUTION: This aluminum alloy brazing sheet is obtained by cladding one side of a core material composed of an Al alloy which has a composition consisting of, by weight, 0.8-1.5% Mn, 0.1-0.6% Cu, <=0.1% Si, and the balance Al with inevitable impurities and further containing, if necessary, one or >=2 kinds among 0.05-0.2% Zr, 0.05-0.2% Ti, 0.05-0.2% Mg, and 0.05-0.5% Fe with an Al-Si type or Al-Si-Zn type Al alloy brazing filler metal and also cladding the other side of the core material with an Al alloy sacrificial anode cladding material which has a composition consisting of, by weight, 0.5-2.5% Mg, 1.0-10.0% Zn, 0.01-0.5% Mn, <=0.1% Si, and the balance Al with inevitable impurities and further containing, if necessary, 0.0005-0.01% Be. |
