| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide excellent strength and corrosion resistance, and to achieve wall thinning and a long corrosion resistant life. <P>SOLUTION: An aluminum alloy pipe member for a heat exchanger includes 0.4-0.7 mass% of Cu, 0.8-1.7 mass% of Mn, and 0.01-0.3 mass% of Zr with the balance comprising Al and unavoidable impurities. It is desired that Fe is 0.6 mass% or less, Si is 0.6 mass% or less, Mg is 0.05 mass% or less, Cr is 0.05 mass% or less, Zn is 0.10 mass% or less, and Ti is 0.05 mass% or less. <P>COPYRIGHT: (C)2013,JPO&INPIT |
