In the era of 5G/6G and EVs, traditional copper alloys face limitations. Oxygen-Free High Conductivity (OFHC) Tellurium Copper provides >93% IACS conductivity while maintaining superior machinability, a critical balance for high-amperage connectors.
Our R&D focuses on the precipitation-strengthening mechanism. By eliminating oxygen (<10ppm), we prevent cuprous oxide formation at grain boundaries, drastically reducing the risk of hydrogen embrittlement in extreme environments.
Kepai New Material addresses the global demand for sustainable, high-precision conductive materials, supporting Fortune 500 companies in automotive, aerospace, and semiconductor industries with JIT (Just-In-Time) logistics.
Established in May 2017, Sichuan Kepai New Materials Co., Ltd. has emerged as a high-tech titan specializing in the R&D and production of specialized copper alloys. Our 29,000 square meter facility serves over 1,000 global clients, supported by more than 30 proprietary patents.
Our flagship OFT (Oxygen-Free Tellurium Copper) is a game-changer. Unlike conventional C14500 tellurium copper, our oxygen-free variant offers enhanced thermal stability and a cleaner microstructure, ideal for high-speed laser processing and plasma welding electrodes.
| Property | Conventional Tellurium Copper (C14500) | Kepai Oxygen-Free Tellurium Copper (OFT) | Impact on Industry |
|---|---|---|---|
| Oxygen Content | 100 - 500 ppm | < 10 ppm | Prevents hydrogen embrittlement in welding |
| Conductivity (IACS) | 90% - 93% | 93% - 98% | Higher energy efficiency in EV chargers |
| Machinability Rating | 85% (Free Cutting) | 90%+ | Faster throughput for CNC precision parts |
| Grain Size | Standard | Ultra-Fine / Homogeneous | Superior surface finish and tool life |
Our OFT copper is the preferred material for high-voltage charging pins and battery interconnects. Its thermal conductivity ensures rapid heat dissipation during 400kW+ fast charging cycles.
The vacuum environment of space demands materials with zero outgassing and extreme reliability. Oxygen-free copper provides the purity required for satellite data transmission components.
With superior resistance to seawater corrosion, our customized alloys are used in undersea sensors and communication cable connectors, ensuring decades of performance in high-pressure depths.
In MRI and CT scanners, the magnetic properties of copper alloys must be strictly controlled. Our high-purity oxygen-free series provides the non-magnetic precision needed for life-saving diagnostics.
As the "heart" of plasma torches, our tellurium copper electrodes offer 20-30% longer lifespan compared to standard alloys, significantly reducing downtime in heavy manufacturing.
Scaling oxygen-free production to ensure <5ppm levels for ultra-high-end semiconductor applications.
Developing Copper-Graphene tellurium hybrids for increased strength without losing 1% of conductivity.
Implementing AI control systems in the vacuum furnace to predict and eliminate micro-inclusions in real-time.
Building a global buy-back program for tellurium copper scrap to refine back into high-purity OFT grade.
Navigating international trade requires more than just good products. Kepai ensures your supply chain is resilient and compliant.
Partner with the industry leader in high-conductivity oxygen-free tellurium copper.
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