Engineered high-performance materials optimized for aerospace, energy systems, semiconductor assemblies, and heavy manufacturing.
Within the spectrum of precipitation-hardened non-ferrous metals, Copper-Nickel-Beryllium (specifically designated as UNS C17510 and class-equivalent to RWMA Class 3) represents the pinnacle of high thermal/electrical conductivity matched with extreme mechanical yield strength. Modern engineering demands materials that resist deformation under elevated temperatures while keeping energy dissipation to an absolute minimum. Traditional coppers possess excellent conductivity but lack tensile resilience; high-strength brasses or steels possess durability but suffer from electrical bottlenecking. Copper-nickel-beryllium eliminates these compromises.
By leveraging a precise formulation of 1.4% to 2.2% Nickel (Ni) and 0.2% to 0.6% Beryllium (Be), this alloy benefits from precipitation hardening (aging). When solution heat-treated and aged, sub-microscopic beryllide phases precipitate uniformly within the copper matrix. These intermetallic compounds restrict dislocation movements under thermal and mechanical loading cycles, preserving high electrical conductivity (typically 45% to 60% IACS) and establishing high hardness properties up to 260 HB.
By shifting Beryllium parameters slightly lower than C17200 and adding Nickel, the thermodynamic behavior during aging triggers the formation of fine $NiBe$ and $Ni_5Be$ phase matrices. This delivers superior thermal fatigue resistance and elevated operating temperature thresholds compared to standard alloys.
CuNiBe alloys maintain mechanical properties up to 480°C (900°F). Their structural resistance to annealing or softening at elevated temperatures makes them highly suitable for components undergoing repeated thermal stress cycles, such as injection mold cores and plasma nozzles.
Offering tensile strength ratings up to 960 MPa and a yield strength exceeding 700 MPa, this alloy ensures structural integrity under extreme friction and high pressure, minimizing operational downtimes and component wear.
In high-tech domains, material failure introduces severe commercial risks. Sichuan Kepai New Materials provides macro-industrial solutions optimized for specific engineering fields:
| Alloy Grade / Standard | Beryllium (Be) % | Nickel (Ni) % | Tensile Strength (MPa) | Electrical Conductivity | Thermal Conductivity |
|---|---|---|---|---|---|
| UNS C17510 (CuNiBe) | 0.20 - 0.60 | 1.40 - 2.20 | 680 - 960 | 45 - 60% IACS | 240 W/m·K |
| UNS C17500 (CuCoBe) | 0.40 - 0.70 | Cobalt: 2.4 - 2.7 | 650 - 930 | 45 - 52% IACS | 210 W/m·K |
| UNS C17200 (Beryllium Copper) | 1.80 - 2.00 | Co + Ni: Min 0.20 | 1100 - 1380 | 15 - 25% IACS | 105 W/m·K |
| UNS C18150 (CrZrCu) | — | — | 350 - 540 | 75 - 80% IACS | 320 W/m·K |
The transition toward electrification, automated industrial tooling, and renewable grids drives a significant increase in demand for performance copper-beryllium derivatives. As manufacturing hubs seek optimized supply chains, selecting a supplier with reliable logistics and high-volume capacity is crucial for maintaining consistent assembly lines.
Sichuan Kepai New Materials addresses these challenges. Operating a 9,000 square meter factory, Kepai integrates the production cycle from raw ingot smelting and precise composition profiling to final heat treatments. This end-to-end integration ensures batch consistency, which is critical for complex automotive and defense manufacturing.
Strategically situated in the western zone of the Sichuan Guanghan Industrial Development Zone, adjacent to National Highway 108, Sichuan Kepai New Materials enjoys strong logistical connections. Since our establishment in 2017, we have adhered to the philosophy: "Innovation-driven development, quality wins the market." We are committed to supplying high-end copper alloy materials, supporting industrial upgrades, and minimizing energy footprints through efficient recycling and refining processes.
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.
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.
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. At the same time, we advocate the corporate spirit of "integrity, innovation, collaboration, and win-win."
Every single batch is processed through our advanced machinery and scrutinized under strict laboratory testing conditions.
Working with high-performance copper-nickel-beryllium alloys requires strict adherence to international safety standards. Beryllium, while safe in solid alloy forms, demands specialized handling during manufacturing processes like grinding or welding, which produce inhalable dust. Our technical support teams provide comprehensive guidelines on industrial hygiene, localized machining parameters, and ventilation systems to keep customer operations safe and compliant.
Furthermore, Sichuan Kepai maintains a robust regulatory posture, holding certifications for ISO 9001 and ISO 14001, and ensuring compliance with RoHS and REACH initiatives. This ensures smooth trade transitions through global customs networks, guaranteeing supply chain security for projects in Europe, North America, and across Asia.
In step with global shifts toward green energy, carbon-neutral processing, and high-conductivity grids, Sichuan Kepai continues to invest in advanced copper research. Our development roadmap focuses on three main fronts:
Technical answers from our engineering team regarding mechanical specifications, processing advice, and commercial logistics.
Consult with our metallurgical engineers to optimize your copper alloy specifications, resolve high-temperature failures, or request a custom quote.
High-conductivity tellurium coppers, corrosion-resistant brasses, and customized heavy-duty bronze materials.
Kepai
