SEAMLESS COPPER ALLOY TUBE FOR HEAT EXCHANGER BEING EXCELLENT IN 0.2 % PROOF STRESS AND FATIGUE STRENGTH

摘要

A seamless copper alloy tube which is mainly used as a heat transfer tube of a heat exchanger, particularly a seamless copper alloy tube which can be used as a heat transfer tube of a heat exchanger using a HFC type chlorofluorocarbon as a heating medium. A seamless copper alloy tube for a heat exchanger manufactured from a copper alloy which contains 0.02 to 0.2 % of Co, 0.01 to 0.05 % of P, and optionally 1 to 20 ppm of C, the remainder being Cu and unavoidable impurities, wherein the content of the oxygen contained as the aforementioned unavoidable impurities is controlled to 50 ppm or less.