TU1是无氧铜氧和杂质含量极低，纯度高，导电、导热性极好，延展性极好，透气率低，无“氢病”或极少“氢病”；加工性能和焊接、耐蚀、耐寒性均好。
无氧铜TU1化学成份% Chemical Composition%
| 牌号Grade | 铜+银 CuAg | 磷P | 铋 Bi | 铍 Sb | 砷 As | 铁 Fe | 镍Ni | 铅 Pb | 锡Sn | 硫 S | 锌Zn | 氧O |
| TU1 | ≥99.97 | ≤0.002 | ≤0.001 | ≤0.002 | ≤0.002 | ≤0.004 | ≤0.002 | ≤0.003 | ≤0.002 | ≤0.004 | ≤0.003 | ≤0.002 |
