INTERNALLY GROOVED ALUMINUM ALLOY HEAT TRANSFER PIPE

摘要

Disclosed is a heat transfer pipe which rarely suffers from crushing of fins and which exhibits excellent corrosion resistance and permits a reduction in wall thickness. An internally grooved aluminum alloy heat transfer pipe, characterized by: having multiple ridge-shaped fins on the inner surface; and containing 0.8 to 1.8 mass% of Mn ("mass%" is hereinafter abbreviated to "%"), 0.3 to 0.8% of Cu, and 0.3 to 1.0% of Si, with the remainder consisting of Al and unavoidable impurities.