Explore our certified premium range of copper alloys designed for optimal electrical conductivity, wear resistance, and high-precision CNC machining.
Superb tensile strength and high fatigue resistance properties.
Superior corrosion resistance and excellent spring properties.
Engineered for heavy load and sliding wear applications.
Ultra-high electrical conductivity combined with superb machinability.
Optimized for low-friction operations and dynamic load bearings.
Ideal for high-speed machining in electrical switches and terminal lugs.
Premium sulfur-copper formulations delivering great chip control.
Exceptional hydrogen embrittlement resistance and purity.
Founded with a dedication to advancing global metallurgy, Sichuan Kepai New Materials Co., Ltd. is a nationally recognized high-tech enterprise integrating R&D, production, and sales. Nestled in the western area of the Sichuan Guanghan Industrial Development Zone, adjacent to National Highway 108, our site boasts unparalleled logistics connectivity.
Our modern plant spans a total of 9,000 square meters of state-of-the-art manufacturing facilities, supported by an advanced 1,000 square meter technical office space. We focus on producing strategic emerging new materials aligned with global technological frameworks, specializing in high-performance copper alloys like tellurium copper, high-conductivity oxygen-free copper, silver copper, and dispersion copper.
The global shift toward electrification, decarbonization, and hyper-connectivity has fundamentally transformed the parameters of metallurgy. Traditional, commodity-grade copper is no longer sufficient to meet the mechanical and thermal requirements of modern high-power electronics. Engineers now demand alloys that display high electrical conductivity alongside robust tensile strength, superior wear properties, and high resistance to thermal softening.
High-voltage battery packs, fast-charging networks, and traction motors require highly conductive alloys that can handle transient electrical currents and mechanical vibrations. Custom tellurium copper (C14500) and beryllium copper derivatives are critical to prevent thermal runaways in connector terminals.
With massive MIMO antennas operating at high frequencies, coaxial connectors and signal components must maintain mechanical stability across dynamic temperature shifts. The spring-like resilience of UNS C51900 phosphor bronze and beryllium cobalt copper alloys (C17500) ensures signal integrity over millions of mating cycles.
Nozzles in automated fiber laser cutting machines operate under extreme thermal stresses. Oxygen-free tellurium copper is the industry choice, matching the high thermal conductivity required for rapid heat dissipation with the precise tolerances needed for micro-nozzles.
In the United States and Canada, local infrastructural grids are being upgraded to accommodate megawatt-level EV charging stations. Kepai’s tellurium copper alloys are used in high-power charging coupler pins and liquid-cooled cables to limit thermal degradation, reducing downtime for public transit hubs and private commercial depots.
For precision machinery manufacturers in Germany and Switzerland, Kepai provides phosphor copper and lead-bronze wear bearings designed for high mechanical repeatability. These alloys facilitate smooth, low-friction movements in articulated joints and CNC slide tables under heavy duty cycles.
In tech hubs like Japan, South Korea, and Taiwan, micro-machined beryllium copper contact pins are deployed in high-density IC test sockets. The alloy's electrical conductivity and high hardness allow testing probes to maintain electrical connections at sub-millimeter scales without deformities.
Technological innovation is our core driver. Kepai boasts a dedicated R&D team consisting of industry experts and metallurgical engineers. Through a combination of independent research and strategic university-industry collaborations, we study phase transformations, dynamic recrystallization, and grain structure controls to formulate high-conductivity, easy-to-machine alloys.
Oxygen content is a key parameter affecting electrical and thermal conductivity. Our vacuum casting processes keep oxygen levels below 10 ppm, which prevents hydrogen embrittlement. This approach produces uniform microstructures in our oxygen-free high-conductivity tellurium copper, optimizing spark erosion properties and prolonging contact tip life in plasma systems.
Every batch of copper alloy undergoes structural inspection. We check for consistent distribution of secondary phases (such as copper tellurides or beryllium precipitates) to ensure mechanical properties match our specifications, allowing our clients to optimize their machining parameters.
Operating out of Sichuan, China, Kepai utilizes the region's abundant hydropower resources and industrial infrastructure to produce high-quality copper alloys with lower operational overheads. Our proximity to key transportation networks, including direct links to major ports, enables predictable lead times for international deliveries.
By using localized raw material sourcing, integrating production in a single facility, and optimizing energy consumption, we minimize supply chain vulnerabilities. This integration protects our clients from price volatility and ensures consistent material supply, even during global shipping disruptions.
Our production processes are supported by state-of-the-art smelting, extrusion, drawing, and precision quality control instruments.
Advanced Smelting
Precision Laying-off
Hydraulic Extrusion
Cold Drawing
Straightening Line
Protective Packaging
Eddy Current Conductance Tester
Chemical Composition Test Room
Metallographic Polisher
Servo Universal Testing Machine
Electronic Tensile Tester
Brinell/Vickers Hardness Tester
As industries progress, material demands become more stringent. Kepai's research roadmap focuses on improving physical properties while meeting international environmental standards.
To align with updating RoHS and REACH regulations, our engineering team is developing lead-free copper alloys. By incorporating alternative free-cutting elements like sulfur, silicon, or bismuth, we provide eco-friendly options that maintain similar machinability to traditional leaded brass.
By adding micro-alloying elements (such as chromium, zirconium, or nickel) and optimizing aging treatments, we aim to increase mechanical tensile strength and resistance to thermal degradation without reducing the material's bulk electrical conductivity.
We are optimizing our induction furnaces and waste-heat recovery systems to reduce the carbon footprint per ton of copper alloy produced. These processes help our customers meet their Scope 3 emission targets and sustainability objectives.
Our production processes align with international quality standards. We maintain traceability from raw materials to final shipment.
Technical answers to common questions about metallurgy, applications, and logistics.
Our comprehensive selection of copper alloys matches demanding industrial requirements.
Ultra-purity levels for high-end electrical and vacuum applications.
The industry benchmark for high-speed machining and threading.
High thermal conductivity combined with high mechanical strength.
High elastic limits, suitable for springs and high-cycle connectors.
Excellent cold formability and fatigue resistance properties.
Combines high electrical conductivity with mechanical durability.
Maintains mechanical strength and conductivity at elevated temperatures.
Free-cutting beryllium copper grade for high-precision components.
Looking ahead, Sichuan Kepai New Materials Co., Ltd. will continue to focus on the research and application 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 partners from all industries to create a brilliant future together!
Kepai