| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy extruded material for heat-exchanger having excellent extruding ability, brazing ability and workability and high strength characteristic, and a flat tube with multi-holes for heat-exchanger and a header for heat-exchanger using the above aluminum alloy extruded material. SOLUTION: This aluminum alloy extruded material for heat-exchanger is composed of 0.0001-1wt.% Sc, 0.005-2wt.% Mn and the balance Al with inevitable impurities and further, if necessary, at least one or more among 0.05-1.5wt.% Si, 0.05-0.8wt.% Cu, 0.01-0.5wt.% Mg and 0.001-0.3wt.% Zr. Further, the strength characteristic is more improved by containing one or more among 0.01-0.25wt.% Ti, 0.01-0.wt.5% Cr and 0.01-0.1wt.% V. COPYRIGHT: (C)2007,JPO&INPIT
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