China Suppliers of Oxygen-Free High Conductivity Tellurium Copper - Premium Factory Grade Solutions
Core of Technological Breakthrough
In response to the demands of such manufacturers, Sichuan Kepai innovated the production process and developed an oxygen-free high-conductivity tellurium copper with completely independent intellectual property rights, which has extremely low oxygen content, extremely high conductivity, easy machinability, and excellent resistance to fusion welding.
Product Advantage Matrix
OFT series oxygen-free and high-conductivity tellurium copper perfectly balances four core properties:
Conductive Revolution
The conductivity exceeds 97% IACS (Kopai OFT-1) and reaches the oxygen-free copper level.
Processing Innovation
Maintain the excellent machinability of tellurium copper, and increase processing efficiency by 40%.
Stable Quality
The whole production process can be traced and strictly controlled, and the performance of the finished product is stable.
Cost Optimization
25% reduction in overall cost compared with oxygen-free copper materials.
Application Value Map
The material excels in key industrial areas:
The conductivity efficiency of battery pole connectors is increased by 22%.
DC relay contacts more than 30 times without sticking.
The qualified rate of plasma nozzle processing is increased to 99.3%.
Kepai Intelligent Manufacturing System
As a national high-tech enterprise, we have built a full chain guarantee from R&D to mass production:
- 5000㎡ special copper alloy R&D base
- R&D and production team led by industry veterans
- Obtained more than 23 core patents (including 8 invention patents)
- Passed IATF16949 automotive-grade quality system certification
- The whole process can be traced and the quality is strictly controlled
The OFT series is now available in three customised solutions:
Frequently Asked Questions
The oxygen-free high-conductivity tellurium copper features an extremely low oxygen content of ≤5ppm, which fully meets the TU00/C10100 oxygen-free copper standard.
The conductivity of the OFT series is ≥95% IACS, which is more than 20% higher than traditional tellurium copper. Specifically, the OFT-1 solution exceeds 97% IACS, matching the oxygen-free copper level.
The OFT series increases processing efficiency by 40% while maintaining excellent machinability, and it provides a 25% reduction in overall cost compared with oxygen-free copper materials.
It excels in the new energy field (increasing battery pole connector efficiency by 22%), power equipment (allowing DC relay contacts to function more than 30 times without sticking), and precision machining (raising the plasma nozzle qualification rate to 99.3%).
Sichuan Kepai has passed the IATF16949 automotive-grade quality system certification. Their manufacturing process is fully traceable and strictly controlled, supported by over 23 core patents (including 8 invention patents).






