TUBE MATERIAL FOR HEAT EXCHANGER MADE OF ALUMINUM

摘要

PURPOSE:To obtain an Al-Mn-Cu alloy having superior strength and extrudability as well as superior corrosion resistance as a tube material for a heat exchanger by adding specified amounts of Mn and Cu to Al. CONSTITUTION:An Al alloy contg. 0.5-0.9wt% Mn, 0.05-0.3wt% Cu and impurities including <=0.3wt% Fe and <=0.2wt% Si is used as a tube material for a heat exchanger. The Al alloy tube material has superior strength and extrudability as well as remarkably superior corrosion resistance.