| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy sheet for a heat exchanger fin, even in a combination of a refrigerant circulation pipe made of an aluminum alloy and a plate fin material made of an aluminum alloy, in which the fin material is preferentially corroded in a corrosive environment, and further, in color formability, particularly, drawing formability and bulging formability are improved.SOLUTION: The aluminum alloy sheet for a fin is used for a plate fin type heat exchanger in a form in which the refrigerant circulation pipe made of an aluminum alloy is inserted into a collar-fitted hole of a fin, and the outer wall of the refrigerant circulation pipe is adhered to the inside face of the collar, and which has a composition comprising 0.3% or higher to 1.3% or lower of Zn, 0.4% or higher to 1.0% or lower of Fe, and the balance Al with inevitable impurities. |
