In the era of the Global Green Transition and the Fourth Industrial Revolution, Pure Copper Bars have evolved from simple conductive components to critical strategic assets. As a leading custom pure copper bar supplier, Sichuan Kepai New Material Co., Ltd. recognizes that purity is no longer the only benchmark. Today’s procurement demands a synergy of high conductivity, exceptional machinability, and thermal stability.
The rise of Electric Vehicles (EVs) and Decentralized Energy Storage has created a 400% surge in demand for oxygen-free high-conductivity (OFHC) copper. Global enterprises are shifting toward suppliers who offer vertical integration—from smelting to precision straightening.
We solve the "Conductivity vs. Machinability" paradox. By utilizing Tellurium and Beryllium alloying techniques, we provide bars that offer 90%+ IACS conductivity while maintaining the tool-friendly properties required for high-speed CNC precision machining.
Our materials strictly adhere to international standards including ASTM, JIS, and DIN. We ensure full RoHS and REACH compliance, providing the necessary certification for aerospace and medical grade applications.
Sichuan Kepai New Materials Co., Ltd., established in 2017, is a high-tech enterprise integrating research and development, production, and sales. We primarily engage in the production of strategic emerging new materials, including special copper alloys such as tellurium copper, high-conductivity oxygen-free copper, silver copper, and dispersion copper. Our products are vital in high-tech fields like new energy vehicles, 5G technology, laser cutting, and lithium battery relays.
Our team composed of senior industry experts keeps pace with international cutting-edge technology. Breakthroughs in high-performance tellurium copper, lead copper, and sulfur copper have reached international advanced levels.
A comprehensive range from pure copper to high-end customization. Includes oxygen-free high-conductivity tellurium copper, nickel tellurium copper, tin bronze, beryllium copper, and chromium zirconium copper.
Rooted in Sichuan, radiating worldwide. We have established long-term cooperative relationships with several internationally renowned enterprises, actively expanding into overseas markets.
Smelting Process
Extrusion Technology
Eddy Current Conductance
Universal Testing Machine
Pure copper is "gummy" during machining, causing tool wear and poor surface finish. Tellurium copper (C14500) contains small amounts of tellurium which acts as a chip breaker, improving machinability by 85% while maintaining nearly identical conductivity.
OFC copper prevents hydrogen embrittlement and offers higher thermal conductivity. In Electric Vehicles, this ensures that high-current connectors and busbars do not overheat, extending the lifespan of the battery system.
We use a proprietary "Integrated Smelting & Monitoring" system. Every batch undergoes chemical composition analysis, hardness testing, and eddy current conductivity checks in our on-site lab before packaging.
Yes. As a direct manufacturer, we offer custom extrusion and drawing services. We can produce bars with specific cross-sections, tolerances, and tempers tailored to your engineering blueprints.
Looking ahead, Sichuan Kepai New Materials Co., Ltd. will continue to uphold its original intention, with even greater enthusiasm and determination, to engage in research and application in the field of new materials. We look forward to working hand in hand with friends from all walks of life to create a brilliant future together!
Kepai
