China Suppliers of High Conductivity Tellurium Copper - Factory Direct Oxygen-Free Solutions for Precision Electronics
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.
- Oxygen content: ≤5ppm (up to TU00/C10100 oxygen-free copper standard)
- Conductivity: ≥ 95% IACS (more than 20% higher than traditional copper tellurium)
- Cutting performance index: increased to more than 90%.
Product Advantage Matrix
OFT series oxygen-free and high-conductivity tellurium copper perfectly balances four core properties:
The conductivity exceeds 97% IACS (Kopai OFT-1) and reaches the oxygen-free copper level.
Maintain the excellent machinability of tellurium copper, and increase processing efficiency by 40%.
The whole production process can be traced and strictly controlled, and the performance of the finished product is stable.
25% reduction in overall cost compared with oxygen-free copper materials.
Application Value Map
The material excels in key 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 (FAQ)
What is the oxygen content of Sichuan Kepai's tellurium copper?
The oxygen content of our oxygen-free high-conductivity tellurium copper is ≤5ppm, which fully meets the TU00/C10100 oxygen-free copper standard.
How does the conductivity of the OFT series compare to traditional copper tellurium?
The OFT series offers a conductivity of ≥95% IACS (and over 97% for the OFT-1 model), which is more than 20% higher than traditional copper tellurium materials.
What are the primary application fields for this material?
This high-performance tellurium copper excels in the new energy field (battery pole connectors), power equipment (DC relay contacts), and precision machining (plasma nozzles).
What quality certifications does the manufacturing system hold?
Our intelligent manufacturing system is certified under the IATF16949 automotive-grade quality system, ensuring strict quality control and complete process traceability.
What customized solutions are available for the OFT series?
We offer three tailored solutions based on conductivity requirements: OFT-1 (Conductivity≥97% IACS), OFT-2 (Conductivity≥95% IACS), and OFT-3 (Conductivity≥93% IACS).






