C10100, scientifically recognized as Oxygen-Free Electronic (OFE) copper, represents the absolute pinnacle of purity in metallurgy, containing a minimum of 99.99% pure copper. As electronic systems grow more sensitive and operates at higher voltages, frequencies, and temperatures, the requirement for standard copper alloys transitions into high-grade C10100 solutions. Manufactured under strictly controlled, oxygen-free vacuum environments, C10100 exhibits virtually zero volatility, making it the industry standard for high-vacuum, cryogenic, and semiconductor manufacturing equipment globally.
Currently, the global industrial economy relies heavily on OFE C10100 to bridge the technological gap between microelectronics and power transmission infrastructure. From submarine telecommunication repeaters and supercolliders to EV traction motors and aerospace busbars, this pure metal provides thermal and electrical conductivity values that exceed 101% IACS (International Annealed Copper Standard). By eliminating volatile elements and avoiding hydrogen embrittlement, C10100 manufacturers provide global industries with an indispensable structural and conductive building block.
Established in 2017, Sichuan Kepai New Materials Co., Ltd. is a leading high-tech enterprise integrating research and development, production, and sales of high-performance strategic copper alloys. Spanning an industrial footprint of approximately 9,000 square meters of factory space and an additional 1,000 square meters of administrative offices, Kepai has positioned itself as a critical player in modern metallurgical research.
The company primarily engages in the production of strategic emerging new materials aligned with the national development plans. Our advanced focus centers on special copper alloys such as high-purity tellurium copper, high-conductivity oxygen-free copper, silver copper, and dispersion-strengthened copper. Concurrently, our R&D efforts are dedicated to solving the trade-off between electrical conductivity, machinability, and mechanical strength in copper alloys. These products are widely deployed in cutting-edge industries including new energy vehicles (NEVs), 5G telecommunication networks, high-precision laser cutting devices, and advanced lithium battery relays.
Understanding the exact chemical composition limits and electrical performance requirements for premium grade Oxygen-Free Electronic Copper.
C10100 is defined by ASTM B170 specs. It enforces extremely low limits on volatile impurities. Oxygen is restricted to a maximum of 5 ppm (0.0005%), while other volatile elements like Lead, Bismuth, Antimony, Arsenic, and Sulfur are kept at trace quantities to prevent thermal cracking or outgassing in vacuum zones.
Unlike ETP (Electrolytic Tough Pitch) copper alloys, C10100 does not suffer from hydrogen embrittlement. Standard coppers contain cuprous oxide which reacts with hydrogen at high temperatures to form high-pressure water vapor, causing micro-voids and cracking. C10100 is completely immune to this structural failure mechanism.
Due to the absence of oxygen and volatile impurities, C10100 copper displays negligible outgassing characteristics. This makes it the preferred structural and electrical material for particle accelerators, sputtering targets, and high-frequency vacuum tubes operating under 10^-10 Torr levels.
Technological innovation is the core competitiveness of Sichuan Kepai New Materials Co., Ltd. The company boasts a dedicated research and development and production team composed of senior industry experts who keep pace with international cutting-edge metallurgy trends. Through the integration of independent R&D and active industry-university-research collaboration, Kepai has achieved breakthrough progress in high-conductivity tellurium copper, lead copper, and sulfur copper alloys. Many of our proprietary achievements have reached international standards and are applied across electric vehicles, plasma cutting torches, electrical relays, and high-capacity battery systems.
Kepai’s product system is diverse, spanning from basic high-purity copper to highly custom copper alloys. Our capabilities include pure copper, oxygen-free copper, oxygen-free high-conductivity tellurium copper, nickel tellurium copper, tin bronze, beryllium copper, lead bronze, sulfur copper, and chromium zirconium copper. By offering tailored physical, thermal, and electrical profiles, we enable clients to reduce fabrication costs and enhance product lifecycle performance, delivering economic and social benefits.
We operate on the development strategy of "rooted in Sichuan, radiating nationwide, and moving towards the world." By continuously optimizing our sales and engineering network, we have established long-term cooperative partnerships with key manufacturers in China and internationally. Kepai actively participates in global material supply chains, providing global OEMs and distributors with access to high-purity copper and specialty alloys.
We understand that the long-term success of a metallurgical manufacturer relies on a culture of integrity, innovation, collaboration, and mutual benefit. Our facility in the western area of the Sichuan Guanghan Industrial Development Zone provides logistics and supply-chain efficiency. We remain dedicated to promoting industrial upgrades, sustainable development, and strict environmental compliance in all our smelting and drawing operations.
Equipped with advanced metallurgy processing lines and testing instruments to ensure zero defects and high consistency.
Smelting Furnace
Laying-off Process
Extrusion Line
Drawing Machine
Straightening Equipment
Packaging & Shipping
Eddy Current Conductance Instrument
Chemical Composition Testing Room
Metallographic Polishing Machine
Electro-Hydraulic Servo Universal Testing Machine
Electronic Universal Testing Machine
Digital Hardness Tester
C10100 high-purity copper is used in complex engineering projects that require specialized physical properties. Below are the key sectors utilizing our materials:
OFE Copper is crucial for glass-to-metal seals and anode/cathode components inside power grid tubes, vacuum interrupters, and klystrons. The absence of volatile impurities prevents localized ionization and electrical arcing.
We supply precision extruded rods and plates that match exact tolerance requirements, providing predictable chip formation and reducing tool wear in CNC milling of high-speed connectors.
Modern EV traction systems, inverter plates, and high-amperage battery busbars depend on C10100 and specialty copper-tellurium alloys (like Kepai's C14500) to manage high electrical and thermal loads without breakdown.
The copper alloy manufacturing sector is evolving to meet the demands of microelectronics, electric propulsion, and clean energy. Our R&D centers focus on these primary development paths:
1. Ultra-Purification & Refining Processes: Refining the smelting process to decrease trace impurity concentrations below 1 ppm. This will improve the cryogenic performance and electrical conductivity of oxygen-free copper grades.
2. Advanced Micro-alloying Methods: Developing copper alloys that balance conductivity and mechanical strength. By adding trace elements like Tellurium, Zirconium, or Chromium, we can improve tensile strength and machinability without significant losses in IACS values.
3. Advanced Additive Manufacturing: Adapting pure copper and copper alloys for metal 3D printing (Selective Laser Melting). This allows the creation of cooling channels for aerospace propulsion systems and induction heating coils.
4. Sustainable Green Metal Production: Transitioning our operations toward energy-efficient induction furnaces and closed-loop scrap recycling systems to reduce the environmental footprint of high-purity copper production.
Our production processes adhere to international quality and environmental management standards.
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, contributing to the development of the new copper alloy materials industry in China and globally. We look forward to working hand in hand with friends from all walks of life to create a brilliant future together!
Kepai
