In the evolving landscape of metallurgy, CW118C (EN designation for Tellurium Copper) stands as a revolutionary alloy that bridges the gap between high electrical conductivity and superior machinability. While traditional pure copper (like C11000) offers excellent conductivity, its "sticky" nature during machining often leads to tool wear and poor surface finishes. CW118C solves this industrial bottleneck by incorporating a precise 0.4% to 0.7% tellurium content.
This subtle addition creates a material that produces short, brittle chips during high-speed CNC operations, achieving a machinability rating of 85% compared to Free-Cutting Brass. As a leading CW118C tellurium copper wholesale supplier, Sichuan Kepai New Material Co., Ltd. ensures that our production processes maintain the electrical conductivity at a minimum of 93% IACS, making it the preferred choice for components requiring complex geometries and high electrical loads.
| Property | Pure Copper (C11000) | Tellurium Copper (CW118C/C14500) | Industrial Impact |
|---|---|---|---|
| Machinability Rating | 20% | 85% - 90% | 4x Increase in Production Speed |
| Electrical Conductivity | 101% IACS | 93% - 98% IACS | Negligible loss for high-power apps |
| Thermal Conductivity | 391 W/m·K | 355 W/m·K | Excellent Heat Dissipation |
| Hydrogen Embrittlement | Susceptible | Resistant | Safe for high-temp soldering/welding |
Located in the Sichuan Guanghan Industrial Zone, Kepai leverages China's vast mineral resources and integrated logistics to provide a stable, uninterrupted supply of CW118C, even during global market volatility.
From vacuum induction melting to final precision drawing, every step is handled in-house. This ensures that the grain structure of our tellurium copper is optimized for both conductivity and mechanical strength.
As an established exporter, we understand international standards (ASTM B301, EN 12164). Our materials power the infrastructure of new energy vehicles and 5G networks across Europe, North America, and Southeast Asia.
In the localized context of China's "Dual Carbon" goals, CW118C is critical for EV charging gun pins and battery connectors. Its ability to withstand high current without overheating, combined with fast machining for high-volume demand, makes it indispensable for the EV ecosystem.
Localized 5G base station deployments require connectors with zero signal distortion. Our CW118C tellurium copper provides the precision required for coaxial connectors and microwave components that operate in extreme environments.
High-quality torch tips and nozzles require materials that resist arc erosion. The thermal properties of Kepai’s CW118C extend the lifespan of consumables by up to 30%, significantly reducing downtime for industrial users.
Looking toward 2030, our R&D is focusing on "Ultra-High Purity" tellurium copper with oxygen levels below 5ppm. This will push the boundaries of superconducting applications and quantum computing cooling systems, where even the slightest impurity can disrupt performance.
Our commitment to E-E-A-T (Experience, Expertise, Authoritativeness, and Trustworthiness) is backed by our state-of-the-art laboratory and testing facility.
Advanced Smelting
Precision Extrusion
Eddy Current Conductance
Chemical Composition Lab
Technical Mastery: Sichuan Kepai employs senior industry experts who collaborate with top-tier universities. This ensures that every batch of CW118C meets the specific hardness and grain size requirements of our clients, whether they are in precision medical device manufacturing or heavy-duty power distribution.
Whether you are designing the next generation of electric vehicle chargers or upgrading precision aerospace components, our CW118C Tellurium Copper provides the performance and reliability you need. Sichuan Kepai is more than a supplier; we are your strategic partner in material science.
Kepai
