Industrial grade materials optimized for conductivity, strength, and thermal management.
Established in May 2017, Sichuan Kepai New Materials Co., Ltd. is a premier high-tech enterprise dedicated to the R&D, production, and global distribution of high-conductivity, high-strength free-cutting tellurium copper and specialized copper alloys. With a sprawling 29,000 sqm facility, we serve as a critical node in the electronics and automotive supply chains.
Our core expertise lies in breaking the limitations of traditional copper materials. By integrating oxygen-free high conductivity (OFHC) technologies with precise alloying elements like Tellurium, Beryllium, and Nickel, we provide the global market with materials that offer unmatched machinability without sacrificing electrical performance.
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Analyzing the shift toward high-frequency, high-current industrial applications.
The global industrial landscape is undergoing a fundamental transformation driven by three core pillars: Electrification, Digitalization, and Sustainability. High-precision copper strips are the "nervous system" of these modern infrastructures. From the ultra-thin foils used in EV battery lithium-ion collectors to the heavy-gauge strips required for smart grid switchgear, the demand for precision has moved from micron-level tolerance to atomic-level purity.
With the rise of 800V EV architectures, copper strips must handle higher current densities with lower heat dissipation. Kepai's C14500 tellurium copper provides the perfect balance of conductivity (>90% IACS) and heat resistance.
High-frequency signal transmission requires copper with ultra-smooth surface finishes to minimize the "Skin Effect." Our precision rolling process ensures Ra < 0.2Āµm for critical connector applications.
Automated CNC lines demand free-cutting alloys that don't foul tools. Our Sulfur Copper and Tellurium Copper alloys are engineered for high-speed machining, reducing downtime and increasing yield.
Kepai's R&D department is focused on the next generation of metallurgical solutions. Our technical roadmap focuses on three key areas:
As semiconductor nodes shrink and power electronics grow, Kepai is pioneering "Graphene-Copper Composites" and "Nano-twinned Copper" to push the boundaries of IACS conductivity beyond 103%, a theoretical leap for energy-efficient motor designs.
Kepai materials are integrated into critical systems across diverse sectors.
Operating in a global market means adhering to the highest regulatory standards. Kepai provides comprehensive documentation to ensure our clients face zero hurdles in cross-border trade and industrial audits.
Get a deep-dive technical assessment for your specific material needs.
Expert insights into copper strip selection and application.
Tellurium copper (C14500) offers a machinability rating of 85%, significantly higher than ETP copper (20%). This allows for faster production of complex precision parts with minimal tool wear while maintaining 90-96% IACS conductivity.
We utilize advanced 4-high and 20-high cold rolling mills equipped with AGC (Automatic Gauge Control) systems, ensuring thickness tolerances within +/- 0.002mm for ultra-thin precision strips.
Yes, Kepaiās independent R&D team can develop custom copper alloys with specific ratios of Tellurium, Beryllium, Nickel, or Phosphorus to meet your unique tensile strength or conductivity requirements.
C17300 is primarily used in the aerospace and electronics sectors for high-reliability connectors and spring contacts where extreme fatigue resistance and high strength are non-negotiable.
For standard specifications, we maintain a rolling stock that can be shipped within 7-10 days. Custom alloy melts and precision slitting orders typically have a lead time of 3-5 weeks depending on the order volume.
Browse our complete catalog of high-performance copper materials.
In addition to high share of the domestic copper alloy market, Kepai has exported to overseas clients with high reputation.
Kepai New Material
