| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy clad material excellent in strength after brazing and corrosion resistance even with thin materials.SOLUTION: There is provided an aluminum alloy clad material 1 having a core material 2, a sacrificial material 3 arranged on a single face of the core material 2 and a brazing material 4 arranged on another face of the core material 2, a sheet thickness of the aluminum alloy clad material 1 is less than 0.2 mm, the core material 2 contains, Si:0.1 to 1.2 mass%, Cu:0.5 to 1.5 mass%, Mn:0.5 to 2.0 mass% and the balance Al with inevitable impurities, the sacrificial material 3 contains Zn:2.5 to 7.0 mass%, Mg:1.5 to 3.0 mass%, Si:0.2 to 0.9 mass% and the balance Al with inevitable impurities and a ratio of a thickness of the sacrificial material 3 to the total of the thickness of the core material 2 and the sacrificial material 3 is 22.5 to 50%. |
