| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy tube material which has an electric potential equivalent to that of other members constituting a heat exchanger, such as a brazing filler metal, and has excellent self-corrosion resistance.SOLUTION: An aluminum alloy tube material for a heat exchanger has a composition composed of, by mass%, ≤0.3% Fe, >0.2% to 0.5% Si, 1.0-1.5% Mn and the balance Al with inevitable impurities, and thereby the aluminum alloy tube material can obtain an electric potential equivalent to that of other members constituting the heat exchanger, such as a brazing filler metal, and also can obtain excellent self-corrosion resistance. |
