Focus on high conductivity and high strength free cutting tellurium copper and other copper alloys
Established in May 2017, Sichuan Kepai New Materials Co., Ltd. is a high-tech private company specializing in R&D, production and sales of high conductivity and high strength free cutting tellurium copper and other special copper alloys. With independent intellectual property rights and internationally certified production systems, Kepai delivers precision copper alloy solutions to global industries.
Kepai New Material combines cutting-edge R&D capabilities, internationally certified quality systems, and eco-friendly manufacturing to deliver copper alloy products that meet the most demanding global standards.
Oxygen-free and highly conductive tellurium copper alloy with independent intellectual property rights. Our proprietary OFT technology achieves superior electrical conductivity while maintaining excellent machinability — an industry-first breakthrough.
Fully compliant with ISO 9001:2015, ISO 14001:2015, and OHSAS 45001:2018 international standards. Our quality management system ensures consistent product performance, environmental responsibility, and occupational health safety across every batch.
Kepai employs environmentally responsible materials and green manufacturing processes. Our free-cutting copper alloys reduce machining waste and energy consumption, supporting our customers' sustainability goals and global ESG compliance requirements.
Our in-house research and development team, equipped with a complete production system and mature production technology, enables deep expertise in tellurium copper alloy formulation, quality control, and custom material development for specialized applications.
Kepai actively participates in the formulation of relevant industry standards for tellurium copper alloy materials, reinforcing our authority and market leadership. This positions us as a benchmark supplier for high-end manufacturing sectors worldwide.
With a strong domestic market share and a growing international client base, Kepai exports to customers across Asia, Europe, and the Americas. Our logistics and supply chain capabilities ensure reliable, on-time delivery for both large-volume and custom orders.
Kepai offers a comprehensive range of high-performance copper alloy products — from tellurium copper and beryllium copper to lead bronze and sulfur copper — engineered for the world's most demanding applications.
C19160 (CuNiSiCr) is a high-performance nickel-silicon precipitation strengthened copper alloy with high strength, excellent electrical conductivity, and outstanding softening resistance.
C26000 achieves a perfect balance of excellent cold forming properties, good comprehensive mechanical properties, and moderate cost — ideal for complex deep drawing, stretching, bending, and cold heading.
C51100 (CuSn4) is a typical tin-phosphorus bronze — a high-performance elastic copper alloy with enhanced strength, wear resistance, and corrosion resistance.
C54400 is a typical tin-phosphorus bronze alloy featuring excellent strength, wear resistance, corrosion resistance, and good elastic properties for demanding engineering applications.
C17300 beryllium copper is a high-performance precipitation-hardening alloy. Lead addition enhances cutting performance while maintaining excellent strength and conductivity for precision industrial applications.
C17200 beryllium bronze foil offers extremely high strength and excellent elastic properties. Widely used in high-end electronic connectors, precision spring clips, and highly reliable conductive components.
C36000 is globally renowned as the "King of Free-Cutting" — a leaded brass alloy with excellent machinability and comprehensive mechanical properties, ideal for high-volume precision components.
C11000 pure copper foil delivers the highest electrical conductivity of any copper grade, making it the preferred choice for PCB manufacturing, battery current collectors, and electromagnetic shielding applications.
High-purity C10100 oxygen-free copper tube offers exceptional electrical and thermal conductivity with minimal oxygen content, suitable for vacuum electronics, audio equipment, and precision engineering.
Kepai's proprietary OFT tellurium copper achieves superior electrical conductivity while maintaining excellent free-cutting performance — the next generation solution for new energy and precision electronics.
C11000 electrolytic tough pitch copper provides excellent electrical conductivity and formability, widely used in electrical wiring, bus bars, heat exchangers, and architectural applications.
C17200 beryllium copper provides the highest strength of all available copper-beryllium alloys, with electrical and thermal conductivity considerably greater than other high-strength copper alloys. Ultimate tensile strength can exceed 200 ksi (1380 MPa).
Kepai's proprietary OFT tellurium copper achieves superior conductivity and free-cutting performance — the next generation solution for new energy and precision electronics industries.
C14500 tellurium copper delivers an outstanding combination of electrical conductivity, thermal conductivity, and machinability — the benchmark alloy for precision electrical components.
Copper tellurium (TeCu) is a high-performance copper alloy containing trace tellurium, widely used in electronics, electric power, and automobile manufacturing due to its excellent electrical conductivity, thermal conductivity, and processing properties.
Developed for the high-speed development fields of new energy vehicles and precision electronics, this material overcomes the traditional dilemma of achieving both conductivity and processing performance simultaneously.
Tellurium copper occupies an important position in the industrial field due to its excellent electrical conductivity and mechanical properties, serving as the ideal high-performance conductive material for demanding applications.
C17300 beryllium copper is a high-performance precipitation-hardening alloy with added lead for enhanced cutting performance, widely used in precision industrial fields.
The highest strength of all copper-beryllium alloys. Ultimate tensile strength can exceed 200 ksi (1380 MPa) with superior electrical and thermal conductivity.
C17510 (CuNi2Be) is a beryllium bronze and spring copper alloy containing 0.2–0.6% beryllium and 1.4–2.2% nickel, offering excellent spring properties and conductivity.
C17300 is a high-performance beryllium copper alloy with high strength, high conductivity, and excellent heat resistance, widely used in electronic, automotive, and aerospace fields.
Beryllium copper offers excellent strength, hardness, and wear resistance while maintaining good electrical and thermal conductivity, with superior fatigue and corrosion resistance for high-stress environments.
Known as the "King of Non-Ferrous Metals," beryllium copper delivers irreplaceable performance in many fields with its excellent comprehensive properties including strength, elasticity, and conductivity.
As a high-performance copper alloy material, lead copper bronze occupies an important position in the industrial field due to its excellent electrical conductivity and mechanical properties.
Lead bronze shows excellent wear resistance and fatigue resistance with hardness reaching 80–120HB and tensile strength exceeding 300MPa, fully meeting the requirements of heavy load conditions.
C17200 beryllium bronze foil is widely used in high-end electronic connectors, precision spring clips, and highly reliable conductive components requiring extreme strength and elasticity.
C17500 beryllium cobalt copper alloy (CuCoBe) is known for its high strength, high electrical conductivity, and good fatigue resistance, commonly used in demanding industrial applications.
C14700 sulfur copper is a sulfur-containing, free-cutting copper alloy known for its excellent processability and good electrical conductivity — ideal for high-speed automated machining.
With expanding applications in new energy and intelligent manufacturing, C14700 sulfur copper's unique properties are being more fully utilized in electric vehicle charging systems and precision electronic components.
Our products are widely used in welding and cutting, connector industry, electrical switches, complex precision components, new energy vehicles, and many other high-demand fields worldwide.
Every batch of Kepai copper alloy undergoes rigorous quality control from raw material selection through final inspection — backed by ISO 9001:2015 certified processes and 30+ proprietary patents ensuring consistent, world-class performance.
Download Quality ReportKepai's vertically integrated manufacturing process — from raw copper sourcing to precision finishing — ensures every product meets exacting international specifications for conductivity, strength, and dimensional accuracy.
High-purity copper and precision-graded alloying elements (tellurium, beryllium, lead, sulfur) are sourced from certified suppliers and subjected to incoming quality inspection before entering production.
Controlled-atmosphere melting using proprietary OFT technology ensures precise alloy composition, minimizing oxygen content and achieving the target microstructure for superior conductivity and machinability.
Multi-pass rolling and drawing processes, combined with precision heat treatment (annealing, precipitation hardening), develop the final mechanical properties — strength, hardness, and elasticity — required by each specification.
100% dimensional inspection, conductivity testing, tensile strength verification, and chemical composition analysis are performed. All products ship with full material certification compliant with ASTM, EN, and JIS standards.
Three core pillars define Kepai's competitive advantage in the global copper alloy market.
Oxygen-free and highly conductive tellurium copper alloy with independent intellectual property rights. Our proprietary OFT technology delivers excellent performance to meet high-end manufacturing needs in new energy, electronics, and precision engineering sectors.
Fully compliant with international standards including ISO 9001:2015, ISO 14001:2015, and OHSAS 45001:2018 to ensure product quality, environmental management, and occupational health and safety across all operations.
The use of environmentally friendly materials and green manufacturing processes produces copper alloy products that meet the needs of sustainable development — supporting our customers' ESG commitments and global regulatory compliance requirements.
With the industry's core technical personnel and a high independent R&D production capacity, Kepai continuously pushes the boundaries of copper alloy science and application.
Research & Development
Kepai's R&D team has developed the world's first oxygen-free high-conductivity tellurium copper (OFT), solving the longstanding industry challenge of achieving both superior conductivity and excellent machinability in a single alloy. With 30+ patents and active participation in national standard formulation, Kepai is not just a manufacturer — we are a technology leader shaping the future of copper alloy materials.
Independent R&D Team & Production System
Our company has established its own independent R&D team, equipped with a complete production system and mature production technology. This allows us to have deep knowledge in the production of copper alloy materials and to rapidly develop custom solutions for specific customer requirements.
Innovative Product Development
In addition to producing traditional copper alloys, we have developed a new type of highly conductive oxygen-free tellurium copper. Compared with traditional copper tellurium, this material achieves lower oxygen content and significantly higher electrical conductivity without compromising free-cutting performance.
International Certification
Our company has passed ISO 9001:2015, ISO 14001:2015, and OHSAS 45001:2018 international certifications, reflecting our adherence to international standards in quality management, environmental management, and occupational health and safety management systems.
Technological Innovation & Standard Development
We continue to innovate in the development and production of tellurium copper alloy materials, and participate in the formulation of relevant industry standards, which not only enhances our market competitiveness but also establishes Kepai as an authoritative reference in the global copper alloy industry.
Environmental Protection & Social Responsibility
Our company focuses on environmental protection and sustainable development, through the use of environmentally friendly free-cutting copper alloys and other materials, to reduce the environmental impact of the machining process. We are committed to delivering materials that help our customers achieve their sustainability targets while maintaining the highest performance standards.
Kepai's commitment to quality and compliance is demonstrated through internationally recognized certifications and a growing portfolio of proprietary patents — providing our global customers with the confidence they need.
Kepai holds more than 30 proprietary patents covering alloy formulation, manufacturing processes, and quality control methods — a testament to our commitment to continuous innovation and intellectual property development in the copper alloy sector.
In addition to holding a high share of the domestic copper alloy market, Kepai has exported to overseas clients with high reputation — serving customers across Asia, Europe, the Americas, and beyond.
Kepai's 29,000 m² state-of-the-art manufacturing facility in Sichuan, China is equipped with advanced copper alloy production lines, precision testing laboratories, and environmentally controlled processing areas — the foundation of our product quality commitment.
From Sichuan, China to global destinations — Kepai's robust supply chain, flexible MOQ policies, and responsive customer service team ensure your copper alloy materials arrive on time, every time, with full traceability documentation.
Send Inquiry NowContact Us For Best Pricing & Technical Support. Would you like to know more about our copper alloy products, custom specifications, or delivery capabilities? We can give you the answer — fast.
Kepai New Material