In today's fast-evolving industrial landscape, the intersection of mechanical strength, thermal management, and electrical conductivity is critical. High-performance OEM cobalt alloys and copper-cobalt matrices represent the forefront of material science engineering. These advanced composite matrices, such as C17500 Beryllium Cobalt Copper, offer unparalleled structural integrity under extreme environments.
Unlike standard copper derivatives, cobalt additions induce precipitation-hardening mechanisms. This allows the alloy to sustain high operating temperatures without structural degradation. For industries operating in high-stress sectors—including new energy vehicles (NEVs), aerospace component design, 5G wireless arrays, and precision automated machining—selecting the correct metallurgical formulation is critical to preventing component failure.
High Thermal Stability: Maintains yield strength at temperatures reaching up to 500°C.
Wear & Galling Resistance: Ideal for high-speed friction and automated machinery interfaces.
Synergetic Formulation: Combines the extreme electric conductivity of copper with the rugged structural matrix of cobalt.
Connecting raw material expertise with modern high-tech applications, helping global supply chains maintain a competitive edge.
Global demand shifts require factories that can mitigate raw material cost fluctuations. Our strategic alliances ensure a steady procurement of high-purity cobalt and cathode copper, shielding our OEM buyers from sudden price volatility.
Navigating global standards (ASTM, EN, JIS, GB) requires deep metallurgical knowledge. We guarantee that all OEM batches meet tight composition tolerances, fully conforming to EU RoHS and REACH environmental guidelines.
From aerospace thermal barrier sleeves to high-load relays in utility-scale electric vehicle (EV) charging stations, our customized alloys are tailored to perform where traditional materials fail.
Established
Factory Area (SQM)
Modern Office (SQM)
Tested & Certified
We configure specific mechanical and chemical properties of copper and cobalt alloy structures to meet precise operational parameters. Below is a comparative breakdown of our popular OEM configurations.
| Alloy Grade | Primary Composition | Electrical Cond. (% IACS) | Hardness (HRB) | Key Industrial Applications |
|---|---|---|---|---|
| C17500 (Beryllium Cobalt Copper) | Cu + 2.5% Co + 0.5% Be | 45 - 60% | 95 - 102 | Resistance welding electrodes, high-stress relays, mold inserts. |
| C18150 (Chromium Zirconium Copper) | Cu + 1.0% Cr + 0.15% Zr | 75 - 80% | 75 - 85 | EV welding caps, semiconductor lead frames, high-load switches. |
| C14500 (Tellurium Copper) | Cu + 0.5% Te + 0.008% P | 90 - 98% | 40 - 50 | Plasma cutting torches, high-speed automated machining connectors. |
| C19160 (High Strength Copper Alloy) | Cu + 1.0% Ni + 0.2% P + Pb | 50 - 60% | 70 - 80 | Automotive electronic sensors, heavy-duty electrical pins. |
| C14700 (Sulfur Copper) | Cu + 0.35% S | 93 - 97% | 35 - 45 | High-volume screw machine parts, electrical terminal components. |
At Sichuan Kepai New Materials Co., Ltd., technology isn't static. Our dedicated R&D division constantly investigates grain refinement technologies to maximize mechanical resilience without degrading electrical conductivity.
Through advanced cooling control during casting and optimized aging cycles, we control precipitation sizes at the nanometer scale. This allows our beryllium-cobalt-copper products to exhibit higher thermal limits, prolonging tool life and ensuring stable operations in high-heat production environments.
We collaborate with national metallurgical research universities, combining academic research with factory practical application to remain at the leading edge of precision material manufacturing.
As global markets shift toward sustainable manufacturing and high-frequency communication protocols (such as 5G/6G systems), the need for refined, non-hazardous, and reliable conductive systems grows.
Our roadmap focuses on expanding oxygen-free high-conductivity tellurium copper (OFT) production capacities and researching next-generation cobalt-silicon-bronze alloy matrices as high-performance alternatives for demanding micro-electronic connectors.
"Delivering specialized, resource-efficient metallurgical solutions that lower production waste and improve performance."
- R&D Division, Sichuan Kepai New Materials Co., Ltd.From initial thermal smelting to precise chemical composition testing, we utilize professional systems to guarantee high dimensional and metallurgical accuracy.
Smelting Process
Laying-off Process
Precision Extrusion
Cold Drawing
Straightening Line
Secure Packaging
Eddy Current Conductance
Chemical Composition Testing
Metallographic Polishing
Hydraulic Servo Tester
LCD Electronic Tester
Vickers/Rockwell Hardness Tester
Established in 2017, Sichuan Kepai New Material Co., Ltd. is a high-tech enterprise integrating research and development, production, and sales. Operating from our 9,000 square meter factory in the western area of the Sichuan Guanghan Industrial Development Zone, we focus on strategic emerging materials.
Our strategic location adjacent to National Highway 108 provides logistics and transportation support. Our core specialty involves developing and manufacturing high-conductivity, easy-to-machine, high-strength copper and copper-cobalt alloy formulations.
We adhere to the business philosophy of "innovation-driven development, quality wins the market." Our materials are applied globally in new energy vehicles, 5G technology, laser cutting arrays, and high-voltage relays.
At Kepai, environmental stewardship and commercial growth are aligned. Our metallurgy lines are engineered to minimize hazardous output and maximize material reclamation.
We implement closed-loop copper scrap recycling programs and utilize high-efficiency filtration to manage emissions during smelting.
Green Manufacturing Certified
In compliance with global RoHS, REACH, and domestic Chinese environmental standards.
Quality control is verified through regular audits. Our manufacturing standards are backed by global certifications.
Detailed technical answers to common questions about OEM cobalt alloys, manufacturing parameters, and supply chain logistics.
Adding cobalt to copper matrices induces precipitation hardening during heat treatment. The sub-microscopic particles of cobalt and beryllium precipitate within the copper matrix, creating internal stresses that resist dislocation movement. This process increases tensile strength and hardness (up to 100 HRB) while retaining up to 60% IACS electrical conductivity, making it suitable for resistance welding electrodes and heavy-duty switch contacts.
We operate chemical testing labs equipped with optical emission spectrometers (OES) and eddy current testers. During smelting, we sample molten metal to verify elemental composition. After processing, each batch is tested for electrical conductivity and hardness. We issue Material Test Certifications (MTCs) for traceability with every shipment.
Yes. Our production processes conform to international standards, including ASTM B534 (for copper-cobalt-beryllium alloys), DIN EN 12163, and JIS H3250. We also collaborate with clients to formulate custom ratios that optimize for specific parameters like higher wear resistance or targeted thermal expansion limits.
Standard OEM production lead times range between 3 to 5 weeks, depending on order size and custom extrusion complexity. For products like standard tellurium copper bars, pre-cast plates, and billets, we maintain inventory reserves to shorten delivery times to 7–10 days.
Both are free-machining alloys with a machinability rating of 85% relative to free-cutting brass (100%). Tellurium copper generates small, brittle chips that clear tools easily, which reduces downtime in high-speed automated lathe operations. Sulfur copper performs similarly but is often preferred in applications requiring specific scrap recycling separation or where tellurium is restricted.
Partner with Sichuan Kepai New Material Co., Ltd. for certified manufacturing, custom extrusion profiles, and technical support.
Kepai
