| 摘要 |
To prove a seamless copper pipe which is mainly used for a heat transfer pipe of a heat exchanger and especially, which can be used as a heat transfer pipe when HFC-type fluorocarbon is used as a heating medium. Means for Dissolving the Object A seamless pipe being made of copper alloy comprising, by weight %, a total amount of 0.02 to 0.2 % of Co, 0.01 to 0.05 % of P, 1 to 20 ppm of C if needed, and remainder Cu, and unavoidable impurities and, as said impurities, the total oxygen content is regulated 50 ppm or less. |
