In the landscape of modern metallurgy, Tellurium Copper 145 (UNS C14500) stands as a pinnacle of engineering balance. As a premier OEM Tellurium Copper 145 Manufacturer, Sichuan Kepai New Materials Co., Ltd. recognizes that the global demand for materials that combine electrical conductivity with superior machinability has never been higher. Tellurium copper, fundamentally a high-copper alloy containing 0.4% to 0.7% tellurium, provides a unique solution to the age-old conflict between "performance" and "processability."
Unlike pure copper (C11000), which is notoriously difficult to machine due to its ductility and "gummy" nature, C14500 introduces tellurium as a free-machining agent. This addition produces a machinability rating of 85% (compared to 20% for pure copper), while retaining over 93% IACS (International Annealed Copper Standard) conductivity. This metallurgical synergy is what drives the heart of plasma cutting, EV charging infrastructure, and high-frequency connectors.
Factory Floor Space (m²)
Global Industrial Clients
National Patents
Conductivity (IACS)
Advancing oxygen-free high conductivity (OFHC) tellurium copper to eliminate hydrogen embrittlement in aerospace vacuum environments.
Implementing multi-stage cold drawing and precision straightening to achieve H04 hard tempers with micron-level tolerances.
Integrating AI-driven spectral analysis to ensure every batch of C14500 maintains the perfect Te-Cu phase distribution.
Focusing on 100% recyclable alloy streams and low-carbon smelting processes to meet EU Green Deal and RoHS compliance.
Tellurium Copper 145 is the gold standard for electrodes and nozzles. Its high melting point and thermal conductivity extend consumable life by 40% compared to traditional brass.
With the rise of fast-charging stations, C14500 is used for high-current contact pins, ensuring low contact resistance and preventing plug-side overheating.
Precision machined coaxial connectors and microwave components rely on the non-magnetic and free-cutting nature of our OEM copper alloys.
As a leading Supplier of C14500, Kepai New Material operates from the industrial heart of Sichuan. Our strategic location offers unparalleled access to raw material reserves and a robust logistics network that connects to global ports via the Belt and Road initiative.
Vertical Integration: Unlike many suppliers who outsource smelting, we manage the entire lifecycle from raw cathode copper to the finished tellurium alloy rod, wire, or sheet. This ensures total quality control and a 30% reduction in lead times compared to Western Tier-1 manufacturers. Our factory’s 29,000 sqm footprint is optimized for high-volume OEM orders, meeting the rigorous standards of ISO9001 and IATF16949.
Establishing authority through independent innovation and international certification.
Our team of metallurgical PhDs focuses on the molecular distribution of Tellurium in the copper matrix.
Developed high-conductivity oxygen-free tellurium copper with lower impurity levels for vacuum applications.
Certified by ISO9001:2015, ISO14001:2015, and OHSAS 45001:2018 for total reliability.
Kepai actively participates in formulating national industry standards for special copper alloys in China.
Partner with Sichuan Kepai for precision-engineered Tellurium Copper solutions tailored to your industry.
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