C11000 Copper, chemically defined as Electrolytic Tough Pitch (ETP) Copper, represents the baseline standard for electrical and thermal conductivity in modern engineering. Consisting of a minimum of 99.90% pure Copper (Cu), C11000 exhibits an outstanding nominal electrical conductivity rating of 101% IACS (International Annealed Copper Standard). This exceptional efficiency is achieved through rigorous electrolytic refining, which carefully controls trace impurities such as lead, iron, and bismuth, while retaining a controlled oxygen content (typically between 0.02% to 0.04%).
The presence of oxygen in ETP copper helps scavenge impurities out of the solid solution matrix, optimizing electrical conductivity. However, it also requires precise thermo-mechanical handling to avoid hydrogen embrittlement when processed at temperatures exceeding 370°C in reducing atmospheres. This metallurgic characteristic highlights the vital need to procure C11000 copper from manufacturers with advanced thermal processing capabilities and extensive custom design expertise.
Features a minimum rating of 101% IACS, reducing resistive losses in heavy electrical systems and high-current busbars.
Maintains a thermal conductivity rating of 388 W/m·K at 20°C, ideal for heat exchangers, radiators, and industrial cooling modules.
Exhibits exceptional formability, allowing deep drawing, stamping, bending, and cold forging into highly intricate geometries.
As a premier Chinese developer and exporter of advanced copper alloys, Sichuan Kepai New Material Co., Ltd. (established in 2017) represents the next generation of metallurgical innovation. Strategically positioned within the western area of the Sichuan Guanghan Industrial Development Zone, adjacent to National Highway 108, our facility integrates high-precision smelting, extrusion, drawing, and straightening processes under one roof.
By coupling regional supply chain advantages with our proprietary manufacturing protocols, we mitigate common industrial challenges, including oxygen level inconsistencies and dimensional variances. Our advanced localized systems allow us to customize C11000 copper specifications (including specific tempers from soft annealed O60 to hard H04, as well as strict custom dimensional tolerances) at highly competitive prices.
Our infrastructure is designed for high-volume capacity and custom metallurgy adjustments, ensuring reliable operations for global industrial clients.
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.
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 minimize production costs and enhance electrical stability.
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 in Europe, the Americas, and Southeast Asia.
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.
Our quality management system is strictly certified under leading global ISO standards. Every shipment of C11000 copper goes through rigorous material testing to guarantee trace chemical compliance, exact dimensional tolerance, and targeted mechanical properties.
Equipped with advanced processing machinery and physical-chemical testing instruments, Sichuan Kepai manages the entire production cycle from initial smelting to final drawing, straightening, and packaging.
Smelting Plant
Laying-off Station
Extrusion Processing
Precision Drawing
Straightening Station
Secure Packaging
Eddy Current Conductance Instrument
Chemical Composition Testing
Metallographic Polishing
Electro-hydraulic Servo Universal Testing Machine
LCD Electronic Universal Testing Machine
Hardness Tester
Industrial demands vary widely across regions and applications. Custom C11000 copper specifications from Sichuan Kepai meet these requirements through precise mechanical, thermal, and electrical adaptation:
The rapid expansion of electric vehicles demands low-loss charging station cables, battery cell connectors, and motor windings. Custom C11000 ETP copper busbars handle high-current transients with minimal thermal buildup, improving overall charging efficiency and vehicle safety.
Next-generation telecom networks depend on high thermal dissipation to maintain structural integrity in high-frequency transceiver units. Our thin-gauge C11000 foils and custom sheets provide excellent thermal routing, helping keep active components within optimal operational limits.
High thermal stability is essential for heavy manufacturing equipment. Sichuan Kepai delivers custom-drawn C11000 copper bars that are machined into high-durability plasma nozzles and contact tips. These components resist material degradation under intense electrical arcs.
Wind and solar installations require durable interconnect components to operate in harsh outdoor conditions. We supply precision-straightened C11000 busbars designed to handle high mechanical stress while maintaining excellent electrical efficiency over decades.
Procuring C11000 copper at scale requires addressing critical supply chain variables: chemical purity, dimensional consistency, regulatory compliance, and transportation logistics. Sichuan Kepai supports procurement managers worldwide with a comprehensive service framework:
Every production run is accompanied by certified mill test reports (MTRs) detailing exact trace elements. We guarantee compliance with international standards, including RoHS, REACH, ASTM B152, and EN 13601.
Industrial stamping, forming, and automated assembly operations require tight dimensional tolerances to prevent machine jams and component failures. Our high-precision extrusion and drawing machinery maintains strict dimensional control across flat bars, round rods, and customized profiles.
Located near National Highway 108 and key Sichuan transport hubs, our logistics team coordinates seamless transit to major container ports, ensuring timely and cost-effective delivery for international shipments.
Partner with Sichuan Kepai New Material Co., Ltd. for your custom C11000 copper requirements. We look forward to contributing to the development of the copper alloy industry in China and globally.
Kepai
