Explore our high-performance copper grades customized for challenging industrial environments, from precision stamping to heavy resistance welding.
The physics behind high electrical conductivity paired with superior mechanical hardness at extreme operating temperatures.
Cucrzr C18150 (Copper Chromium Zirconium) represents a premium category of precipitation-hardening copper-based alloys. By incorporating minor fractions of Chromium (Cr, typically 0.5–1.2%) and Zirconium (Zr, typically 0.03–0.3%), the alloy undergoes a phase transformation during thermal treatment. Quenching from high temperatures creates a supersaturated solid solution, which is subsequently aged. During the aging process, sub-microscopic chromium and zirconium phases precipitate out of the copper matrix.
This atomic dispersion hinders dislocation movement within the crystalline lattice, significantly elevating the metal's yield strength and hardness without dramatically reducing its natural electrical conductivity. The result is a specialized material that maintains over 80% IACS (International Annealed Copper Standard) conductivity while delivering a tensile strength that exceeds 450 MPa.
Unlike conventional copper alloys that soften rapidly at temperatures above 200°C, C18150 possesses a high softening temperature threshold of approximately 500°C. This makes it the absolute industry benchmark for applications involving thermal stress fatigue, localized arc discharges, and high-frequency cyclical mechanical loads.
How global sectors utilize Cucrzr C18150 to overcome heat dissipation bottlenecks and extreme mechanical wear.
In automated robotic assembly lines, C18150 forms the critical weld tips and electrodes. Its resistance to deformation at 400°C+ prevents electrode flattening (mushrooming) during rapid micro-spot welding on galvanized steel sheets and aluminum battery casings.
Metallurgical steel plants require high thermal flux materials to solidify molten steel rapidly. C18150 continuous casting mold plates offer the perfect blend of wear resistance against abrasive liquid metal and high thermal conductivity for rapid heat extraction.
For heavy power grids and renewable energy relay stations, C18150 provides reliable contact terminals. It prevents catastrophic system failure by maintaining structural integrity and low contact resistance even during unexpected short-circuit surges.
A premier high-tech enterprise integrating specialized copper alloy R&D, advanced hot extrusion manufacturing, and global industrial supply.
Established in 2017, Sichuan Kepai New Materials Co., Ltd. has grown to become a cornerstone manufacturer of high-performance strategic metal alloys. Operating from a state-of-the-art facility spanning 9,000 square meters alongside 1,000 square meters of dedicated research and corporate offices, we are directly focused on producing strategic emerging new materials aligned with global technological shifts and national industrial upgrades.
Our core catalog spans high-conductivity oxygen-free copper, silver copper, dispersion copper, and chromium zirconium copper (C18150). These materials are highly customized for high-tech applications, including 5G telecom components, new energy vehicle power systems, industrial laser cutters, and advanced lithium battery relays.
Located strategically in the western area of the Sichuan Guanghan Industrial Development Zone, directly adjacent to National Highway 108, our factory benefits from a superior geographical layout and highly integrated shipping channels. Our fundamental philosophy—"innovation-driven development, quality wins the market"—ensures that every metric of our production process, from metallurgical formulation to final quality verification, matches global quality and ecological expectations.
Key technical criteria for engineering procurement managers selecting C18150 Chromium Zirconium Copper alloys.
International purchasing teams must map structural and mechanical equivalent codes. C18150 corresponds closely to RWMA Class 2, EN CW106C, DIN 17666 W.Nr. 2.1293, and ASTM B929. We ensure 100% compliance across mechanical properties and trace element limits.
For critical applications like aerospace thrust chambers and EDM electrodes, micro-voids or slag inclusions are unacceptable. Our facility conducts strict non-destructive testing (NDT), verifying uniform grain structure throughout the entire bar or sheet thickness.
Even fractional contamination by lead, bismuth, or sulfur can degrade copper's high-temperature performance. Our chemical composition testing room uses state-of-the-art spectrometers to issue certified chemical composition sheets with every shipment batch.
Technical capabilities that position Sichuan Kepai at the forefront of international copper alloy metallurgical manufacturing.
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. Many of its technological achievements have reached international advanced levels and have been successfully applied in various industries such as new energy vehicles, precision machining parts, plasma cutting, relays, and energy storage, earning widespread recognition and praise in the market.
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 play an important role in reducing production costs and enhancing product performance due to their excellent physical and chemical properties and environmental friendliness, creating significant economic and social benefits for customers.
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.
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. We believe that only by continuously pursuing excellence and creating value can we win the trust of customers and the respect of society.
In alignment with global green supply chain transitions, Kepai actively implements green processing techniques. Our C18150 alloys are produced using energy-efficient induction furnaces and advanced closed-loop cooling circuits, significantly reducing carbon footprint per ton produced. We adhere to all regional environmental laws, ensuring our waste materials undergo absolute reclamation cycles.
Our production facility is fully audited under global standardization benchmarks, verifying chemical purity and dimensional accuracy.
From virgin cathode induction smelting to high-pressure hot extrusion and computerized tensile validation.
Predicting the evolution of Chromium Zirconium Copper under upcoming manufacturing demands.
With the rapid adoption of Direct Energy Deposition (DED) and Selective Laser Melting (SLM), aerospace and tooling sectors demand C18150 in spherical powder form. The challenge is copper's high laser reflectivity. Future roadmaps focus on using green or blue lasers combined with specialized C18150 alloys featuring tailored absorption characteristics, allowing the creation of complex cooling channels in rocket engines.
To push electrical conductivity past 85% IACS while maintaining peak hardness, double vacuum melting (VIM + VAR) is being explored. This technique reduces trace elements like oxygen, phosphorus, and lead to parts-per-million levels. Minimizing internal gas content prevents micro-cracking when subjected to cryogenic environments or high-energy plasma zones.
Equal-Channel Angular Pressing (ECAP) and other advanced drawing processes are being applied to C18150 to refine grain structures to the sub-micron scale. This grain boundary engineering boosts fatigue limits by up to 30%, satisfying the extreme needs of next-generation robotic spot-welding systems that operate at higher cycles and currents.
Detailed answers to the most common questions raised by procurement managers and design engineers.
Browse our broader range of industrial copper alloys, optimized for electrical switches, marine structures, and high-frequency connectors.
Looking ahead, Sichuan Kepai New Materials Co., Ltd. will continue to uphold its original intention, with even greater enthusiasm and determination, to engage in research and application in the field 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 friends from all walks of life to create a brilliant future together!
Kepai
