组成 牌号 代号 化学成分(%)用途 铜 银 其它杂质总和纯铜一号铜T1≥99.95 ≤0.05导电和高纯度合金用二号铜T2≥99.90 ≤0.10导电用三号铜T3≥99.70 ≤0.30一般用无氧铜一号无氧铜TU1≥99.97 ≤0.03电真空器件和仪器、仪表用二号无氧铜TU2≥99.95 ≤0.05磷脱氧铜一号脱氧铜TP1≥99.90磷0.005-0.012≤0.10焊接等用二号脱氧铜TP2≥99.98磷0.013-0.050≤0.15银铜0.1银铜TAg0.1铜≥99.95银0.06-0.12≤0.30