| 摘要 |
PROBLEM TO BE SOLVED: To provide a clad material for a heat exchanger excellent in pitting corrosion resistance in a strongly alkaline environment and used for a refrigerant flow passage material for an automobile heat exchanger. SOLUTION: This clad material is obtained by cladding one side or both sides of a core material composed of an Al alloy having a composition consisting of, by weight, 0.8-2.0% Mn, 0.1-1.0% Si, 0.1-0.7% Cu, 0.05-0.15% Zr, and the balance Al with inevitable impurities with a sacrificial anode cladding material having a composition consisting of, by weight, 0.75-1.2% Fe, 0.5-2.5% Mg, either or both of 1-8% Zn and 0.05-0.35% Sn, and the balance Al with inevitable impurities. |
