ALUMINUM ALLOY FOR VACUUM BRAZING SHEET CORRUGATED FIN CORE MATERIAL

摘要

PURPOSE:To improve the corrosion resistance and heat resistance of the aluminum alloy by specifying Mn, Cu, Fe, Si and Al. CONSTITUTION:The aluminum alloy for a vacuum brazing sheet corrugated fin core material has the compsn. constituted of 1.6 to 2% Mn, 0.001 to 0.02% Cu and the balance Al, or in addition to this, furthermore of 0.1 to 0.5% Fe and 0.15 to 1% Si. The above aluminum alloy has excellent corrosion resistance and heat resistance.