| 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 |
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