Direct procurement pathways for high-conductivity, precipitation-hardened, and high-purity copper products manufactured under strict ISO quality standards.
Established in 2017, Sichuan Kepai New Materials Co., Ltd. is a high-tech pioneer integrating metallurgy research, advanced precision manufacturing, and international trade. Operating out of a state-of-the-art facility in the Sichuan Guanghan Industrial Development Zone, we focus on the research, development, and supply of strategic emerging materials engineered for ultra-high performance requirements.
We are situated in the western area of the Sichuan Guanghan Industrial Development Zone, adjacent to National Highway 108. This provides our enterprise with critical logistical advantages, enabling rapid transit from production floors to major export ports. Under our operating philosophy of "innovation-driven development, quality wins the market," Kepai leverages advanced smelting systems to supply green, highly recyclable materials that comply with strict global directives like RoHS and REACH.
By investing heavily in energy-efficient induction furnaces and low-emission extrusion lines, we minimize the carbon footprint of high-purity copper smelting. Our focus extends to strategic emerging technologies within China's national 13th Five-Year Plan, enabling core transformations in electric grid reliability and industrial automation.
Oxygen-Free Copper (OFC) and Oxygen-Free High Conductivity (OFHC) metals represent the peak of electrical and thermal material engineering. This section analyzes market demands, hydrogen embrittlement solutions, and macroeconomic drivers.
High-vacuum and ultra-high-vacuum (UHV) electronics require oxygen levels strictly below 10 ppm (ASTM B170 Grade 1). Any residual oxides can cause outgassing under high vacuum. Standard ETP (Electrolytic Tough Pitch) copper is prone to rapid degradation in these conditions, making high-purity OFC alloys essential.
Next-generation electric vehicle (EV) charging stations and high-voltage busbars demand massive current-carrying capacity without thermal runaway. Using low-resistivity copper ensures minimized power loss, lower heat emission, and highly efficient energy transfer for fast-charging applications.
Due to raw material restrictions and energy policies, key industrial consumers in North America and the European Union rely on certified exporters in developing manufacturing corridors. Our supply chain is structured to ensure continuity and full compliance with strict Western specifications.
| Copper Grade (UNS) | Purity (Min Cu %) | Max Oxygen Content | Electrical Conductivity | Core Application |
|---|---|---|---|---|
| C10100 (OFE) | 99.99% | < 5 ppm (0.0005%) | 101% - 102% IACS | Superconductors, Cryogenics, Waveguides, Vacuum Chambers |
| C10200 (OF) | 99.95% | < 10 ppm (0.001%) | 100% IACS | Busbars, Electrical Conductors, Semi-Conductor Substrates |
| C14500 (Te-Cu) | 99.50% (Te: 0.4-0.7%) | Oxygen-Free (OFT) | 93% - 98% IACS | Plasma Cutting Nozzles, High-speed CNC Machined Connectors |
| C18150 (Cr-Zr-Cu) | Balance (Cr: 1%, Zr: 0.1%) | Oxygen-Free base matrix | 80% IACS | Resistance Welding Electrodes, High-Temperature Switchgear |
A comprehensive overview of our manufacturing processes, including continuous casting, drawing, and precision testing protocols.
Our metallurgy and production processes are built on modern scientific principles. The core challenge in refining Oxygen-Free Copper lies in preventing oxidation and gas dissolution during casting. We utilize a protected vertical continuous casting system under controlled atmospheres (typically argon or carbon cover) to prevent molten metal from absorbing oxygen, hydrogen, and carbon.
For micro-alloyed materials such as Tellurium Copper (C14500) and Chromium Zirconium Copper (C18150), precise thermal management is required during melting. This ensures uniform dispersion of alloying elements without forming heavy oxide clusters that reduce electrical performance.
We perform systematic testing on every batch of copper produced. Key metrics include density measurements to detect micro-porosity, eddy current testing to verify IACS electrical conductivity, and metallographic grain analysis to confirm recrystallization parameters. These measures ensure our products satisfy the high reliability standards of our industrial partners.
Delivering high-purity copper products to aerospace, power grid, and scientific research centers globally.
By optimizing our supply chains and distribution networks, we support strategic industrial centers across Europe, North America, and Southeast Asia. We work closely with international shipping networks to ensure prompt delivery of orders to global clients.
Our research and development team consists of senior material scientists. Through active collaborations with universities and metallurgical institutes, we work to push the boundaries of high-conductivity and high-strength alloys.
Our product portfolio ranges from oxygen-free tellurium copper and chromium zirconium copper to high-purity oxygen-free copper and beryllium copper. These materials find critical applications in power transmission, laser cutting, and EV relays.
Our development roadmap focuses on refining microstructure control and expanding production capacities to meet the demands of advanced technologies.
Implementing advanced electromagnetic levitation melting methods to consistently achieve oxygen levels below 3 ppm. This enables the production of high-performance components for high-power laser and cryogenic vacuum systems.
Expanding our research on Tellurium and Sulfur copper micro-alloys (C14500 / C14700). We aim to improve the electrical conductivity and machinability of these materials to support high-speed CNC manufacturing processes.
Working towards carbon-neutral operations by integrating solar arrays, heat-recovery systems on extrusion lines, and closed-loop scrap recycling processes.
How Kepai's engineering materials solve critical performance challenges across diverse industries.
High-purity Oxygen-Free Copper (OFC) serves as the primary substrate for EV power modules and high-speed charging connector terminals. Standard coppers can experience thermal fatigue and mechanical failure due to oxide impurities. Our C10100 materials provide reliable, low-loss energy transfer under cyclic high-voltage loading.
High-frequency transmission signals propagate primarily along the surface of conductors (skin effect). Any surface contamination or oxide inclusions can cause signal attenuation. Our oxygen-free copper rods and profiles are drawn under tight dimensional controls to ensure smooth surfaces and stable high-frequency performance.
Tellurium Copper (C14500) provides high electrical and thermal conductivity combined with excellent machinability. It is widely used in CNC-machined plasma cutting nozzles and laser tip components, helping to extend tool life and maintain stable manufacturing cycles.
Chromium Zirconium Copper (C18150) retains its mechanical strength at elevated temperatures. This makes it a preferred choice for resistance welding electrodes and high-stress mechanical components in automotive assembly lines.
Technical answers to key procurement and metallurgical questions about Oxygen-Free Copper production and sourcing.
Additional grades, specialty alloys, and precision components designed for high-stress industrial applications.
Contact Sichuan Kepai New Materials Co., Ltd. to request a quote, verify technical specifications, or discuss custom copper alloy development for your application.
Kepai