Browse our top industrial high-conductivity and high-purity copper and brass alloy components, manufactured to strict international quality standards.
In modern electronics, aerospace, and energy transmission systems, the requirement for raw materials of uncompromising purity has never been higher. 99.99% Pure Copper Wire (often designated as 4N Copper or Oxygen-Free Electronic C10100) represents the gold standard of electrical and thermal conductivity. Unlike standard grade copper (such as ETP or C11000), which may contain higher traces of oxygen and micro-impurities, 4N pure copper wire is refined under vacuum environments to minimize structural anomalies and achieve an International Annealed Copper Standard (IACS) value often exceeding 101%.
The global demand for high-purity copper is shifting. Driven by the mass electrification of transport, high-frequency telecommunication systems (5G/6G), and heavy industrial automation, manufacturers require ultra-clean copper alloys. Impurities like lead, sulfur, or iron—even in levels measured in parts per million (PPM)—can severely impact signal integrity, increase electrical resistance, and cause premature fatigue in structural cabling. As a leading high-tech alloy enterprise, Sichuan Kepai New Material Co., Ltd. addresses these requirements by integrating state-of-the-art smelting and drawing techniques.
Established in 2017, Sichuan Kepai New Materials Co., Ltd. is a modern high-tech enterprise integrating research and development, production, and sales. Located in the western area of the Sichuan Guanghan Industrial Development Zone, adjacent to National Highway 108, the company enjoys strategic logistical access that supports rapid distribution to both local and international markets.
Currently, our state-of-the-art facility covers approximately 9,000 square meters of production space, complemented by a 1,000-square-meter administrative and R&D center. Kepai focuses heavily on strategic emerging materials, offering premium solutions including tellurium copper, high-conductivity oxygen-free copper, silver copper, and dispersion copper, alongside bespoke high-conductivity and easy-to-machine alloys.
Since our founding, Kepai has operated on the core philosophy that sustainable development is inextricably linked to technological breakthrough. We actively invest in clean melting practices, closed-circuit water systems, and low-emission extrusion techniques to align with global environmental benchmarks.
By designing specialized copper alloys that require fewer processing steps or offer enhanced wear resistance, we help our clients lower their operational energy footprints. Our strategic initiatives contribute directly to critical high-tech fields including new energy vehicles, 5G signal networks, precision laser cutting, and lithium battery relays.
Technological innovation remains the core competitive driver at Sichuan Kepai New Materials Co., Ltd. Our engineering team comprises senior metallurgical experts and material scientists who track international trends to push performance limits. Through a combination of independent research and strategic university partnerships, Kepai has achieved major advancements in high-conductivity, free-cutting tellurium copper, lead bronze, and sulfur copper alloys.
Our developments in tellurium copper and oxygen-free copper meet demanding tolerances, supporting applications in EV batteries, plasma cutting electrodes, and micro-electronic connections.
We supply a broad range of high-end alloys, from pure copper and OFHC copper to nickel tellurium copper, tin bronze, beryllium copper, and chromium zirconium copper.
By optimizing our global distribution and localized support, we supply high-performance alloys to manufacturing partners across Europe, North America, and East Asia.
Our company emphasizes a culture of integrity and continuous improvement. Rigorous quality assurance processes support the long-term reliability of our products.
Achieving 99.99% purity and precise alloy dispersion requires modern equipment at every stage. Sichuan Kepai maintains a fully integrated facility covering smelting, extrusion, cold drawing, straightening, and comprehensive physical and chemical analysis.
The shift toward electrification is driving demand for copper wire with minimal electrical resistivity. Pure copper alloys, particularly oxygen-free and micro-alloyed types, provide the conductivity and mechanical resilience needed for high-power applications.
High-frequency communications rely on stable signal paths. Trace impurities in conductive wires can cause signal scattering and attenuation at high frequencies. High-purity oxygen-free copper helps ensure signal integrity in core network infrastructure.
Modern electric vehicles require high-current charging and distribution systems. Using 99.99% pure copper and customized alloys like Tellurium Copper (C14500) allows contacts, terminal pins, and battery relays to handle high electrical loads with minimal thermal loss.
Traditional high-purity copper can be difficult to machine due to its ductility. By introducing trace elements (like tellurium or sulfur) under controlled conditions, we produce alloys that offer free-machining properties while maintaining high conductivity.
Focusing on reducing total gas impurities (O, N, H) to below 5 PPM, optimizing our vacuum induction furnace capabilities, and enhancing grain boundary density controls.
Developing customizable copper-tellurium-tin and copper-zirconium variants designed to withstand mechanical stress in heavy industrial connectors without reducing IACS conductivity.
Industrial requirements vary significantly by application. Below is an overview of how our range of high-conductivity alloys matches specific operational requirements:
Nozzles and contact tips operate in high-temperature environments. Our oxygen-free tellurium copper alloys (C14500) provide the electrical and thermal conductivity required to extend consumable lifespan under continuous arc conditions.
Power transmission components must handle repeated contact cycles. Using high-conductivity copper-zirconium (C18150) and oxygen-free copper prevents contact sticking and reduces heat generation at high current loads.
Long-distance transmission requires low conductor resistance to minimize power loss. Our 99.99% pure copper wire is processed to minimize impurities, providing consistent performance across large manufacturing batches.
Operating in international markets requires compliance with strict technical and environmental regulations. Sichuan Kepai maintains a comprehensive quality management system certified under key international frameworks, including ISO9001 and ISO14001, to ensure consistent material performance.
Get answers to common technical and logistical questions about 99.99% pure copper wire and high-conductivity alloys.
Explore our range of oxygen-free copper, tellurium copper, and specialty chromium zirconium alloys designed for heavy industrial use.
Partner with Sichuan Kepai New Materials Co., Ltd. to optimize your alloy supply chain. Our engineering team is available to assist you with material selection, technical compliance, and custom manufacturing runs.
Kepai
