Precision-engineered alloys satisfying international standards for global industrial applications
In the theater of global industrial electrification, power transmission, and electronics manufacturing, **C11000 copper** (commonly designated as **Electrolytic Tough Pitch or ETP copper**) serves as the structural and conductive standard. Possessing a minimum copper purity of 99.90%, C11000 exhibits an exceptional electrical conductivity rating that matches or exceeds 101% IACS (International Annealed Copper Standard). This outstanding parameter makes it the prime choice for engineers demanding minimal resistive loss and maximum thermal efficiency.
Unlike oxygen-free grades (such as C10200), C11000 is engineered with a tiny, controlled concentration of oxygen (typically in the range of 0.02% to 0.04%). This intentional addition of oxygen acts as a purifying agent during the refining process, scavenging trace impurities and ensuring that the electrical path remains unobstructed. The resulting microstructure yields high electrical and thermal performance, paired with excellent ductility and malleability. This balance is critical for downstream OEM processes such as drawing, stamping, forging, and bending.
Understanding the microstructural behaviors of C11000 is essential when defining manufacturing and procurement criteria. The material boasts a highly stable structure at standard ambient temperatures, but design teams must remain alert to its thermodynamic limits. When exposed to temperatures exceeding 370°C in reducing atmospheres—specifically those rich in hydrogen—C11000 ETP is susceptible to a phenomenon known as **hydrogen embrittlement**. For vacuum devices, high-temperature welding, or hydrogen-cooled environments, oxygen-free copper variants (such as OFHC or Kepai's high-purity oxygen-free copper series) are recommended instead.
Leading Chinese Enterprise driving research and development of strategic emerging new copper alloys
Established in 2017, Sichuan Kepai New Materials Co., Ltd. is a high-tech enterprise integrating research and development, production, and sales. Currently, our state-of-the-art factory covers an area of approximately 9,000 square meters, complemented by a modern administrative and technical 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.
In addition to high-purity materials, we maintain a core focus on the research and development of high-conductivity, easy-to-machine, high-strength copper alloys. Our premium solutions are primarily applied in high-tech fields such as new energy vehicles, 5G technology, laser cutting, and lithium battery relays.
Our manufacturing center is located in the western area of the Sichuan Guanghan Industrial Development Zone, adjacent to National Highway 108. This superior geographical position and convenient transport network lay a solid foundation for the rapid, carbon-efficient distribution of our metal products. Since our inception, Kepai has adhered to the core business philosophy of "innovation-driven development, quality wins the market." We are fully committed to providing customers with the highest quality high-end copper alloy materials, while continuously promoting industrial upgrading and sustainable development.
Technical expertise, diverse product system, global reach, and collaborative culture
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.
Why global OEMs partner with western-China hubs for high-performance copper alloys
Sichuan is structurally integrated into China's heavy chemical and metallurgical production bases, allowing Kepai to source primary high-purity copper cathodes with minimal transit times. This direct mineral corridor mitigates international spot price fluctuations and reduces shipping markups, ensuring competitive pricing for our high-precision OEM customers.
Operating in Sichuan gives Kepai a distinct environmental advantage. The province's electric grid is predominantly powered by renewable hydroelectric energy. Processing C11000 and other specialty alloys in a hydro-powered facility drastically reduces the Scope 3 carbon footprint of the metal products, satisfying green procurement directives in the EU and NA.
Unlike trading entities, Sichuan Kepai is a fully integrated manufacturer. From raw material smelting to final extrusion, cold drawing, straightening, sizing, and chemical/physical testing, every process is conducted within our 9,000 m² factory under strict ISO9001 supervision. This ensures traceability from ingot to ship-out.
For global enterprise buyers, purchasing raw copper materials internationally presents complex challenges regarding compliance and physical specifications. To guarantee friction-free integration into assembly lines in North America, Western Europe, and Japan, Kepai designs all C11000 copper profiles to align directly with international engineering standardizations, including:
To address the stringent demands of modern environmental regulations, every batch of C11000 copper processed by Kepai is certified RoHS and REACH compliant. We ensure that dangerous levels of lead, mercury, cadmium, and hexavalent chromium are absent, enabling seamless integration into high-tech consumer electronics and automotive assemblies. In addition, our team offers specialized localized technical support, bridging engineering challenges by assisting with local customs documentation, import tariffs, and logistics frameworks.
Unlocking peak performance in next-generation high-tech markets
Inside electric vehicles and charging infrastructures, large currents must flow with minimal resistive heat generation. Custom OEM C11000 busbars, connector pins, and terminal contacts route power efficiently from lithium-ion cell packs to traction inverters. Its exceptional ductility enables complex, space-saving geometric bends without micro-fracturing.
Modern telecommunications stations, data storage centers, and coaxial transmission lines demand optimal signal integrity. C11000 provides high conductivity and low impedance, making it ideal for electromagnetic wave shielding (EMI), RF connectors, and specialized grounding networks.
Laser cutting systems run at extreme temperatures that degrade lower-grade components. The rapid thermal dissipation of C11000 makes it highly sought after for laser nozzles and cooling structures. By rapidly dispersing excess heat, C11000 prevents nozzle distortion and prolongs mechanical lifespan.
Full processing cycle and quality assurance machinery deployed in Sichuan Kepai
Smelting Production
Laying-off Operation
Heavy Extrusion Processing
Precision Cold Drawing
Mechanical Straightening
Standardized Packaging
Eddy Current Conductance testing
Chemical Composition Lab
Metallographic Polishing
Servo Universal Testing Machine
LCD Electronic Testing Machine
Hardness Testing System
Analyzing global demand vectors, supply strategies, and advanced metallurgy shifts
The global copper market is undergoing a structural shift driven by the "Green Transition" and the widespread adoption of AI hardware infrastructure. While ETP C11000 remains the cornerstone for heavy electrical applications due to its cost-efficiency and high conductivity, there is a clear trend toward hybrid alloys. Applications demanding high thermal dissipation combined with high wear resistance are transitioning toward chromium-zirconium copper (C18150) or specialized tellurium copper (C14500) to support faster machining operations without sacrificing electrical performance.
OEM manufacturers and enterprise buyers are adjusting their procurement strategies to mitigate geopolitical blockages and logistical friction. There is a growing focus on securing reliable OEM suppliers capable of managing the entire value chain in-house. Kepai is positioned to meet this demand, utilizing regional hydroelectric power assets to provide globally compliant alloys that support low Scope 3 emissions. This positioning helps Western partners meet environmental targets while optimizing production costs.
Clear, authoritative engineering answers addressing key procurement queries
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!
Retaining industry-leading standards across all special copper alloy classifications
Kepai
