In the modern era of high-precision engineering, C18150 (Chromium Zirconium Copper) has emerged as the definitive material for applications requiring the triad of high electrical conductivity, superior thermal stability, and exceptional mechanical strength. As a RWMA Class 2 material, its global demand is skyrocketing, driven by the expansion of the Electric Vehicle (EV) infrastructure, aerospace heat exchangers, and advanced robotic welding lines.
Current industrial data suggests a compound annual growth rate (CAGR) of 5.8% for specialty copper alloys. Suppliers who can optimize the machinability of C18150 provide significant Information Gain for engineers: by reducing tool wear and increasing feed rates, the Total Cost of Ownership (TCO) of precision components is slashed by up to 30%.
Unlike standard electrolytic copper, C18150 utilizes precipitation hardening. This metallurgical process involves alloying copper with 0.5–1.5% Chromium and 0.05–0.25% Zirconium, followed by heat treatment to create a stable microstructure that resists softening at temperatures up to 500°C.
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.
Our facility in Sichuan represents the pinnacle of modern metallurgy, focusing on solving the "machinability gap" in high-performance alloys. By integrating vacuum melting with precision extrusion, we ensure that our C18150 bars and tubes exhibit uniform grain structures, making them the preferred choice for CNC machining centers globally.
Focus on pure copper (C11000) and basic brasses. Limitations include low strength and poor resistance to high-temperature softening.
Integration of Chromium and Zirconium. Our current focus is optimizing the machinability via trace element control and specialized cold-working processes.
Kepai's proprietary "Oxygen Free Tellurium Copper" and "Oxygen Free Chromium Zirconium Copper" represent the future. These materials eliminate hydrogen embrittlement and provide a surface finish that rivals precious metals.
Developing Lead-free and Cadmium-free alternatives for the global market, ensuring compliance with REACH and RoHS standards while maintaining superior performance.
C18150 is the "gold standard" for resistance welding electrodes used in high-strength steel vehicle frames. Our high-machinability rods ensure longer tool life and consistent weld quality.
Used in rocket engine nozzle liners and high-stress electrical connectors. Our materials maintain 80% IACS conductivity even under extreme thermal cycling.
Copper alloys offer inherent bio-fouling resistance. Our C18150 and Lead-Bronze series are optimized for underwater sensor housings and seawater-resistant connectors.
Kepai New Material is not just a manufacturer; we are a research institution. We have passed ISO9001:2015, ISO14001:2015, and OHSAS 45001:2018. Our international certifications reflect our commitment to the highest quality, environment, and occupational health standards.
Innovative Product development: In addition to the production of traditional copper alloys, we have developed a new type of highly conductive oxygen-free tellurium copper. Compared with traditional copper tellurium, this material has lower impurities and higher conductivity (>98% IACS).
In addition to high share of the domestic copper alloy market, Kepai has exported to overseas clients with high reputation in Europe, North America, and Southeast Asia.
Partner with Kepai New Material for sustainable, high-performance copper solutions. Our engineering team is ready to assist with your material selection.
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