In the evolving landscape of advanced metallurgy, the demand for materials that balance high electrical conductivity with superior machinability has never been higher. As a premier OEM Copper and Sulfur exporter, Sichuan Kepai New Material Co., Ltd. specializes in C14700 Sulfur Copper—a revolutionary alloy designed for high-speed automated machining applications. Unlike standard copper, the integration of sulfur facilitates "chip breaking" during machining without significantly compromising the thermal or electrical properties, making it the preferred choice for 5G telecommunications, new energy vehicle (NEV) components, and precision electronics.
Our role as a tier-one sulfur copper exporter is built on the foundation of Information Gain. We don't just supply metal; we provide engineering solutions that reduce cycle times by up to 30% for our global partners. By leveraging China's robust industrial ecosystem and our proprietary R&D, we offer high-conductivity, oxygen-free copper variants that meet the most stringent ASTM and DIN standards.
Sichuan Kepai is located in the Western Sichuan Industrial Development Zone. This strategic location provides us with direct access to high-purity raw materials and a logistics network that connects us to major global ports in record time. Our OEM sulfur copper production leverages this proximity to maintain competitive pricing without sacrificing purity.
As a high-tech enterprise, we are at the forefront of the national strategic emerging materials initiative. Our dedicated laboratory focuses on tellurium copper and dispersion copper, ensuring that our clients receive the most advanced technological increments in the market.
With 9,000 square meters of production space, we transition from prototyping to mass production seamlessly. Our automated smelting and extrusion processes ensure consistent batch quality, a critical factor for global enterprises requiring high-performance conductive materials.
The global Copper and Sulfur market is witnessing a paradigm shift. With the rise of the Internet of Things (IoT) and Electric Vehicles (EVs), the need for components that can withstand high temperatures while maintaining connectivity is paramount. Sulfur copper (C14700) is filling the gap between pure copper and lead-based alloys, offering an eco-friendly alternative that aligns with RoHS and REACH regulations.
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.
Technological innovation is our core competitiveness. Our team consists of senior industry experts who keep pace with international cutting-edge technology trends. We have made breakthrough progress in high-performance tellurium copper, lead copper, and sulfur copper, earning widespread recognition in NEV, 5G, and precision machining sectors.
Our product line covers pure copper, oxygen-free copper, nickel tellurium copper, tin bronze, beryllium copper, and chromium zirconium copper. These solutions help reduce production costs and enhance product performance through excellent physical and chemical properties.
We are "rooted in Sichuan, radiating nationwide, and moving towards the world." We have established stable partnerships with internationally renowned enterprises and actively participate in global competition to promote the Kepai brand influence.
Our state-of-the-art facility is equipped with precision testing and production machinery to ensure 0-defect exports.

Smelting

Extrusion

Drawing

Eddy Current Conductance Instrument

Chemical Composition Test Room

Metallographic Polishing

Servo Universal Testing Machine

Hardness Tester
High-conductivity sulfur copper for charging gun pins and battery relays. Our materials provide the durability required for rapid charging cycles and vibration resistance.
Tellurium and sulfur copper components for RF connectors and base station hardware. Ensures minimal signal loss and maximum heat dissipation in compact designs.
Specialty alloys designed for lithium battery connectors, offering superior electrical stability and long-term reliability in high-current environments.
Global procurement teams from Europe, North America, and Southeast Asia prioritize three things: Material Consistency, Supply Chain Transparency, and Technical Support. Sichuan Kepai addresses these through:
We provide OEM services tailored to specific hardness, conductivity, and tensile strength requirements. Whether you need rods, plates, or wires, our extrusion lines are adaptable.
In the high-stakes world of new material development, speed is key. We offer rapid sample production to help your R&D department validate designs quickly.
C14700 Sulfur Copper offers a machinability rating of 85% compared to Free-Cutting Brass. It maintains high electrical conductivity (approx. 90-95% IACS) and excellent thermal conductivity, making it superior for precision machined electrical components.
We employ a rigorous multi-stage testing process including chemical composition analysis, eddy current conductance testing, hardness testing, and metallographic sampling in our own advanced laboratory. We are ISO 9001 certified.
Yes, we specialize in high-conductivity, oxygen-free tellurium and sulfur copper alloys specifically engineered for RF connectors and 5G base station thermal management systems.
While both enhance machinability, tellurium copper (C14500) typically offers slightly better thermal stability at higher temperatures, whereas sulfur copper (C14700) is often a more cost-effective choice for high-speed automatic screw machine operations.
Absolutely. As a dedicated OEM Copper and Sulfur exporter, we provide full export documentation and support custom branding/packaging for global distributors and OEMs.
Join hundreds of global enterprises leveraging Kepai’s advanced material science.