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C11000 copper is produced through electrolytic refining, yielding a material with extremely low impurity levels. Its oxygen content typically ranges from 0.02% to 0.04%, which contributes to its outstanding combination of electrical conductivity, thermal conductivity (approximately 391 W/m·K), and excellent cold-working characteristics. The alloy designation conforms to ASTM B187, B152, and B272 standards, as well as Chinese national standard GB/T 5585.
The face-centered cubic (FCC) crystal structure of C11000 gives it outstanding ductility, enabling it to be drawn into wire as fine as 0.01 mm without fracture. This property is indispensable for the electronics industry, where miniaturization demands thinner conductors without sacrificing reliability.
The global copper wire and cable market was valued at over USD 180 billion in 2023 and is projected to exceed USD 260 billion by 2030, growing at a CAGR of approximately 5.4%. C11000 pure copper accounts for the lion's share of this demand, driven by rapid electrification across energy, transportation, construction, and consumer electronics sectors. Asia-Pacific, led by China, India, and Southeast Asia, represents the fastest-growing regional market, while Europe and North America continue to upgrade aging grid infrastructure with high-conductivity copper solutions.
China alone consumes over 12 million metric tons of refined copper annually, with electrical applications representing more than 60% of total copper consumption. The national dual-carbon policy (carbon peaking by 2030 and carbon neutrality by 2060) is accelerating investments in renewable energy infrastructure, EV charging networks, and smart grids — all of which are intensive consumers of C11000 pure copper.
Electrical Conductivity: ≥101% IACS — the highest among commercially available copper grades, making every kilogram of material count in power-loss-sensitive applications. Resistivity: 1.71 μΩ·cm at 20°C. Thermal Conductivity: ~391 W/m·K. Tensile Strength: 220–380 MPa (depending on temper). Elongation: Up to 45% in annealed condition, supporting complex forming operations without cracking.
1. Busbars & Power Distribution: C11000 busbars are the circulatory system of power distribution panels, switchgear, and data center infrastructure. Their low resistivity minimizes I²R losses, directly reducing operational energy costs. In modern hyperscale data centers, where power loads exceed tens of megawatts, even marginal improvements in busbar conductivity translate into millions of dollars in annual energy savings.
2. Transformer Windings: Both distribution and power transformers rely on C11000 copper windings for their superior conductivity and thermal performance. Copper-wound transformers are typically 30–40% smaller than aluminum equivalents for the same power rating, a critical advantage in space-constrained urban substations and industrial facilities.
3. EV & Hybrid Vehicle Electrical Systems: A single battery electric vehicle (BEV) contains approximately 2.5–4 kg of copper wiring and up to 80 kg of copper in total (including motor windings, battery busbars, and charging systems). C11000 pure copper is specified for high-voltage battery interconnects, motor stator windings, and fast-charging cable assemblies, where thermal management and conductivity are non-negotiable.
4. 5G Base Station & Telecom Infrastructure: The rollout of 5G networks globally has created surging demand for high-frequency copper components. C11000 is used in antenna feedlines, RF connectors, and precision-machined waveguide components. Its low skin-effect resistance at high frequencies and excellent solderability make it the preferred substrate for RF and microwave assemblies.
5. Semiconductor & PCB Manufacturing: In printed circuit board (PCB) production, electrodeposited C11000 copper foil (as thin as 9 μm) forms the conductive traces that interconnect billions of electronic components daily. Advanced HDI (High Density Interconnect) and flex PCBs for smartphones, wearables, and IoT devices all depend on ultra-pure copper foil derived from C11000-grade material.
6. Lithium Battery Relay & Energy Storage Systems: C11000 copper is critical in battery management systems (BMS), where precision-stamped copper bus bars connect individual cells in series-parallel configurations. The material's excellent solderability and resistance to oxidation ensure long-term contact reliability in lithium-ion and solid-state battery packs used in grid-scale energy storage.
7. Laser Cutting & Plasma Cutting Electrodes: High-purity C11000 copper is used as electrode material in plasma cutting torches due to its exceptional thermal conductivity, which efficiently dissipates the intense heat generated during operation, extending electrode service life and maintaining cut quality.
Green Energy Transition: Solar PV systems, wind turbines, and offshore energy platforms require massive quantities of C11000 copper for cabling, grounding, and inverter components. The International Energy Agency (IEA) estimates that achieving net-zero emissions by 2050 will require a tripling of annual copper demand for clean energy applications alone.
Smart Grid & Digital Infrastructure: Next-generation smart grids incorporate advanced metering infrastructure (AMI), automated switching, and real-time monitoring — all requiring high-conductivity copper interconnects. The global smart grid market is expected to reach USD 103 billion by 2028.
Miniaturization & High-Density Packaging: As electronic devices shrink and power densities increase, the demand for ultra-fine C11000 copper wire (below 0.1 mm diameter) and ultra-thin copper foil continues to grow, pushing materials science and manufacturing precision to new limits.
Sustainability & Circular Economy: Copper's near-infinite recyclability — with no degradation in properties — makes C11000 a cornerstone of circular economy strategies. Recycled copper (secondary copper) accounts for approximately 35% of global copper supply, and this share is expected to grow as ESG mandates tighten across supply chains worldwide.
Unmatched electrical conductivity — the industry gold standard for power transmission, minimizing energy losses across every application from micro-connectors to grid-scale busbars.
Thermal conductivity of ~391 W/m·K ensures efficient heat dissipation in high-current applications, extending component lifespan and improving system reliability.
Up to 45% elongation in annealed condition enables complex stamping, deep drawing, and fine wire drawing without cracking — ideal for precision electrical components.
C11000 copper retains full properties through infinite recycling cycles, supporting green manufacturing and circular economy compliance across global supply chains.
Natural oxide layer formation provides inherent corrosion protection, ensuring long-term contact integrity in connectors, terminals, and outdoor electrical installations.
Advanced continuous casting and drawing processes deliver tight dimensional tolerances, critical for automated assembly in PCB, relay, and semiconductor manufacturing.
Each BEV uses up to 80 kg of copper. With global EV sales projected to surpass 40 million units annually by 2030, C11000 copper demand from the automotive sector alone will increase by over 3 million metric tons per year.
5G base stations require 4–5× more copper than 4G equivalents. The global deployment of 5G networks and the proliferation of IoT devices are creating sustained demand for high-purity C11000 copper in RF, telecom, and data infrastructure.
Solar and wind energy installations require 5–6 tonnes of copper per MW of capacity. As global renewable capacity targets accelerate under net-zero commitments, C11000 copper cabling and grounding systems are in unprecedented demand.
Grid digitalization and the integration of distributed energy resources (DER) require advanced switchgear, smart meters, and automation equipment — all relying on C11000 copper for reliable, low-loss electrical connections.
The global semiconductor shortage has accelerated fab construction worldwide. Each new semiconductor fabrication facility requires thousands of kilometers of ultra-pure C11000 copper interconnects and precision-machined components.
Grid-scale battery energy storage systems (BESS) and EV battery packs rely on C11000 copper busbars and current collectors. The global energy storage market is projected to grow at 30%+ CAGR through 2028, driving significant copper consumption.
Sichuan Kepai New Materials Co., Ltd., established in 2017, is a high-tech enterprise integrating research and development, production, and sales. Currently, the factory covers an area of approximately 9,000 square meters, with an office space of about 1,000 square meters. The company primarily engages in the production of strategic emerging new materials for the national 13th Five-Year Plan, including special copper alloys such as tellurium copper, high-conductivity oxygen-free copper, silver copper, and dispersion copper, while also focusing on the research and development of high-conductivity, easy-to-machine, high-strength copper alloys. The products are mainly applied in high-tech fields such as new energy vehicles, 5G technology, laser cutting, and lithium battery relays.
The company is located in the western area of the Sichuan Guanghan Industrial Development Zone, adjacent to National Highway 108, boasting a superior geographical location and convenient transportation, which lays a solid foundation for the rapid development of the enterprise. Since its establishment, Kepai has adhered to the business philosophy of "innovation-driven development, quality wins the market," committed to providing customers with the highest quality high-end copper alloy materials, and promoting industrial upgrading and sustainable development.
Technological innovation is the core competitiveness of Sichuan Kepai New Materials Co., Ltd. The company has a research and development and production team composed of senior industry experts who keep pace with international cutting-edge technology trends and continuously explore the unknown boundaries in the field of new copper alloy materials. Through a combination of independent research and development and industry-university-research collaboration, Kepai has made breakthrough progress in several areas, including high-performance tellurium copper, lead copper, and sulfur copper. Many of its technological achievements have reached international advanced levels and have been successfully applied in various industries such as new energy vehicles, precision machining parts, plasma cutting, relays, and energy storage, earning widespread recognition and praise in the market.
Kepai's product line is rich and diverse, covering a comprehensive range of solutions from basic materials to high-end customization. We focus on providing customers with high-performance, high-quality high-end copper alloy products, including but not limited to 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. These products play an important role in reducing production costs and enhancing product performance due to their excellent physical and chemical properties and environmental friendliness, creating significant economic and social benefits for customers.
In the face of global market competition, Sichuan Kepai New Materials adheres to the development strategy of "rooted in Sichuan, radiating nationwide, and moving towards the world." By continuously optimizing market layout and improving the sales network, we have established a stable customer base in multiple provinces and cities across the country and have formed long-term cooperative relationships with several internationally renowned enterprises. At the same time, the company actively expands into overseas markets, participates in international competition and cooperation, and strives to promote Kepai's brand influence on the global stage.
We understand that the long-term development of an enterprise is inseparable from an excellent corporate culture. We advocate the corporate spirit of "integrity, innovation, collaboration, and win-win," encouraging employees to explore boldly and innovate courageously, while also emphasizing teamwork and talent cultivation, striving to create a harmonious, open, and inclusive work atmosphere. We believe that only by continuously pursuing excellence and creating value can we win the trust of customers and the respect of society.
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Laying-off
Extrusion
Drawing
Straightening
Package
Eddy Current Conductance Instrument
Chemical Composition Test Room
Metallographic Sample Polishing Machine
Microcomputer Controlled Electro-Hydraulic Servo Universal Testing Machine
Liquid Crystal Display Electronic Universal Testing Machine
Hardness Tester
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!
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