Explore our premier range of industrial-grade copper alloys, meticulously manufactured to reach superior electrical conductivity, unmatched machinability, and extreme structural durability.
Established in 2017, Sichuan Kepai New Materials Co., Ltd. is a pioneering high-tech enterprise integrating research and development, production, and global sales. Strategically situated in the western area of the Sichuan Guanghan Industrial Development Zone, adjacent to National Highway 108, our facility operates at the nexus of superior geographical connectivity and advanced regional supply chains.
Our core mission revolves around the production of strategic emerging new materials aligned with national development guidelines. Specifically, Kepai is specialized in high-performance copper alloys, including tellurium copper, high-conductivity oxygen-free copper, silver copper, and dispersion copper. By focusing heavily on easy-to-machine, high-strength, and high-conductivity copper formulations, we enable technological breakthroughs across new energy vehicles (NEVs), 5G telecommunication networks, precision laser cutting machinery, aerospace systems, and advanced lithium battery relays.
Since inception, Kepai has anchored its operations in the philosophy of "innovation-driven development, quality wins the market." We are committed to providing the global market with the highest quality high-end copper alloy materials, actively driving modern industrial upgrades and sustainable development practices.
As global industries transition toward ultra-fast electric vehicle charging, high-density 5G transmission, and precision electronics, the limitations of conventional copper alloys have become a significant engineering bottleneck. Traditional electrolytic tough pitch (ETP) copper offers excellent conductivity but suffers from poor machinability and hydrogen embrittlement susceptibility. Conversely, free-machining brasses solve machining issues but drop severely in electrical conductivity (typically down to 25-28% IACS).
By combining high-purity oxygen-free copper with trace amounts of tellurium (0.4%–0.7%), our alloy maintains an outstanding electrical conductivity of ≥93% IACS (and up to 98% IACS in optimized tempers), facilitating minimum power loss in high-current links.
Boasting a 85% machinability rating relative to free-cutting brass (C36000), Tellurium Copper produces short, manageable chips, minimizing tool wear and significantly increasing manufacturing cycle speeds.
Utilizing an oxygen-free copper base ensures that our alloy does not suffer from embrittlement when exposed to reducing atmospheres at high temperatures, critical for brazing and welding applications.
The microscopic structure of Sichuan Kepai's tellurium copper features uniformly dispersed copper telluride (Cu2Te) particles throughout the copper matrix. These particles act as natural chip breakers during machining operations. Unlike leaded coppers, tellurium copper offers a more environmentally compliant path (meeting RoHS and REACH guidelines) while exhibiting superior cold and hot workability.
Our manufacturing processes maintain strict oxygen levels below 10 ppm, which preserves the structural integrity of the copper during high-temperature thermal cycling. This meticulous control results in a material that is uniquely suited for power electronics, electrical switchgears, semiconductor packaging, and plasma cutting torches.
The global transition to electric vehicles (EVs) has catalyzed a steep increase in demand for materials that can withstand rapid DC charging systems. High-conductivity tellurium copper is increasingly specified for charging gun pins, terminal connectors, and lithium battery relays where thermal dissipation is critical. Concurrently, 5G base stations rely on C14500 to handle high-frequency signals with minimal heat generation.
Modern procurement managers are shifting away from general metal suppliers to direct, integrated manufacturers. The criteria for high-performance alloy sourcing have evolved to require:
At Sichuan Kepai, we leverage advanced manufacturing automation and integrated processes (from raw material smelting to final inspection) to ensure maximum production efficiency and batch-to-batch consistency. Our factory setup reflects the transition to China's Factory 4.0 paradigm:
Integrated Smelting & Continuous Extrusion: By conducting our own casting, extrusion, drawing, and precision straightening on-site, we maintain full control over the material's microstructural integrity. This localized integration drastically shortens lead times, reduces scrap rates, and minimizes logistics-induced carbon footprints.
Strategic Logistics Advantage: Being located in Sichuan's Guanghan Industrial Development Zone grants us rapid access to trans-Eurasian rail lines and deep-sea ports. This robust logistics network ensures secure, predictable container shipping times to our partners across Europe, North America, and Southeast Asia.
Quality is validated by rigorous scientific testing. We utilize high-precision extrusion machinery and top-tier metallurgical inspection laboratories to confirm that every shipment meets strict international standards.
Our commitment to rigorous international management guidelines is backed by standard-setting certifications.
Answering structural and performance queries regarding Oxygen Free High Conductivity Tellurium Copper for engineers and purchasing managers.
Ready to optimize your production lines, reduce tool wear, and improve the electrical performance of your systems? Contact our technical team for custom alloy formulations and volume-based pricing quotes.
In addition to tellurium copper, we manufacture and export a wide spectrum of pure coppers, high-strength bronzes, and customized brass alloys.
Kepai