In the evolving landscape of precision metallurgy, CW118C (C14500) Tellurium Copper stands as the pinnacle of high-performance alloys. Established in May 2017, Sichuan Kepai New Materials Co., Ltd. has emerged as a high-tech titan specializing in the R&D and production of this critical material. Our focus is not merely on supply, but on providing an Information Gain advantage through superior material science.
CW118C is unique for its "High Conductivity + Free Machinability" duality. Traditionally, pure copper (C11000) offers peak conductivity but poor machinability (20%). By introducing trace tellurium, Sichuan Kepai delivers an alloy with 85% machinability while maintaining over 93% IACS electrical conductivity. This makes us the premier choice for manufacturers seeking to optimize high-speed CNC production without sacrificing electrical efficiency.
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Understanding the shift toward high-efficiency materials in a carbon-neutral era.
The rise of Electric Vehicles (EVs) and 5G infrastructure has tripled the global demand for CW118C. Its superior arc resistance and thermal stability are indispensable for charging piles and high-frequency connectors.
Global manufacturers are shifting from leaded-brass to Tellurium copper to meet stricter RoHS and REACH environmental standards. Kepai leads this transition with 100% eco-friendly processing.
As electronic components shrink, the need for materials that can be precision-machined at a microscopic scale without warping is paramount. CW118C's fine grain structure provides the necessary dimensional stability.
How Sichuan Kepai is engineering the next generation of copper alloys.
Our R&D team is currently pioneering the "Oxygen-Free High Conductivity Tellurium Copper (OFT)". Conventional CW118C contains trace oxygen which can lead to hydrogen embrittlement during welding. Our technical roadmap involves:
Achieving 99.99% pure copper base.
Uniform Tellurium dispersion via vacuum casting.
Total elimination of impurities for medical use.
Alloys optimized for AI-driven CNC machining.
High-current DC contactors and charging interface pins utilize CW118C for its low contact resistance and high heat dissipation properties, ensuring safety during rapid charging.
In MRI components and robotic surgical tools, CW118C provides the necessary non-magnetic high conductivity and precision required for delicate life-saving equipment.
Used extensively for electrodes and cutting nozzles. The alloy's ability to withstand high temperatures while maintaining conductive efficiency extends tool life by up to 40%.
Sichuan Kepai doesn't just sell rods and sheets; we provide Integrated Material Solutions. Our independent R&D team works directly with engineers to customize alloy hardness (HV), tensile strength, and grain size to match specific CNC tooling speeds. This reduces chip buildup and tool wear, lowering the Total Cost of Ownership (TCO) for our clients.
Expert insights into CW118C Tellurium Copper performance and sourcing.
Answer: While brass is easy to machine, its conductivity is only around 25-28% IACS. CW118C provides >90% IACS. In high-power applications, using brass leads to overheating and energy loss, whereas Tellurium Copper ensures efficient power transmission.
Answer: We use advanced vacuum induction melting and spectral analysis to ensure the Tellurium content is strictly between 0.4% and 0.7%. This precise range guarantees both the high conductivity and the broken-chip effect required for automatic lathes.
Answer: Yes, but only when produced as "Oxygen-Free". Sichuan Kepai's proprietary OFT technology reduces oxygen content to below 10ppm, effectively preventing hydrogen embrittlement during high-temperature brazing processes.
Answer: We provide a wide range of specifications including round rods, hexagonal rods, square bars, sheets, and customized forged parts to meet diverse industrial geometries.
Connect with Sichuan Kepai today for a technical consultation on CW118C Tellurium Copper and discover how our material innovation can revolutionize your components.
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