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China Suppliers Factory: High Conductivity Oxygen-Free Tellurium Copper for Energy Vehicles and 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.
≤5ppm
Oxygen Content
Up to TU00/C10100 oxygen-free copper standard.
≥95%
Conductivity (IACS)
More than 20% higher than traditional copper tellurium.
90%+
Cutting Index
Significant increase in overall cutting performance.
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 areas:
+22%
New Energy Field
The conductivity efficiency of battery pole connectors is increased by 22%.
30x+
Power Equipment
DC relay contacts perform more than 30 times without sticking.
99.3%
Precision Machining
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:
OFT-1 (Conductivity ≥ 97% IACS)
OFT-2 (Conductivity ≥ 95% IACS)
OFT-3 (Conductivity ≥ 93% IACS)
Frequently Asked Questions
What is oxygen-free high-conductivity tellurium copper?
It is an advanced copper alloy developed by Sichuan Kepai with extremely low oxygen content (≤5ppm) and high conductivity (≥95% IACS). It combines the easy machinability of tellurium copper with the excellent electrical properties of oxygen-free copper.
How does the conductivity of the OFT series compare to traditional copper tellurium?
The OFT series offers a conductivity of over 95% IACS (and up to 97% IACS for the OFT-1 solution), which is more than 20% higher than traditional copper tellurium materials.
What are the processing and cost benefits of using OFT series copper?
The OFT series increases processing efficiency by 40% while maintaining excellent machinability (cutting performance index over 90%). Additionally, it provides a 25% reduction in overall cost compared with pure oxygen-free copper materials.
In which applications does this material provide the most value?
It excels in the new energy field (improving battery pole connector efficiency by 22%), power equipment (allowing DC relay contacts to operate over 30 times without sticking), and precision machining (raising plasma nozzle qualified rates to 99.3%).
What quality certifications and credentials does Sichuan Kepai have?
Sichuan Kepai is a national high-tech enterprise with a 5000㎡ special copper alloy R&D base. We hold over 23 core patents (including 8 invention patents) and are fully certified under the IATF16949 automotive-grade quality system.