Inquiry
Form loading...
Discover our premier selection of high-performance copper alloy materials for advanced industrial applications
C17500 (also known as CuCo2Be or Cobalt Beryllium Copper) is a premium high-performance copper alloy that combines exceptional electrical conductivity with outstanding mechanical strength. Unlike standard C17200 beryllium copper, C17500 achieves a remarkable balance — delivering conductivity levels of approximately 45–60% IACS while maintaining tensile strengths up to 900 MPa after age hardening.
This makes C17500 an indispensable material for applications that demand both current-carrying capacity and structural integrity. It has become particularly vital in Nagoya's advanced manufacturing ecosystem, where precision components for automotive electronics, semiconductor equipment, and industrial connectors require materials that simply cannot compromise on either performance metric.
The alloy contains approximately 2.4–2.7% cobalt and 0.4–0.7% beryllium by weight, with the remainder being high-purity copper. The cobalt addition — distinguishing it from conventional beryllium copper — provides a refined grain structure that enhances fatigue resistance, creep performance at elevated temperatures, and dimensional stability under cyclic loading.
Nagoya — Japan's manufacturing heartland — represents one of Asia-Pacific's most dynamic demand centers for premium copper alloys
Nagoya is the global epicenter of Toyota's supply chain and hosts hundreds of Tier-1 and Tier-2 automotive suppliers. C17500 copper alloy is extensively used in EV battery management connectors, high-current relay contacts, and precision sensor housings where thermal and electrical performance is critical.
The Tokai region surrounding Nagoya hosts a dense cluster of semiconductor packaging and precision electronics manufacturers. C17500's superior spring characteristics and conductivity make it ideal for IC test sockets, burn-in board contacts, and lead frame materials demanding ultra-tight dimensional tolerances.
Nagoya's Noritake and surrounding industrial districts are renowned for precision machining and tooling. C17500 alloy delivers non-sparking, non-magnetic tooling solutions, EDM electrodes, and bearing components that maintain dimensional accuracy even under sustained mechanical stress and thermal cycling.
Japan's Shinkansen network and Nagoya's Linimo maglev system rely on high-performance copper alloys for pantograph contact strips and electromagnetic braking components. C17500's wear resistance and stable contact resistance under high-speed sliding contact make it a material of choice for rail electrification systems.
Nagoya's expanding 5G infrastructure rollout creates substantial demand for high-frequency connector components. C17500's combination of conductivity and spring-back properties makes it ideal for RF connector pins, antenna mounting springs, and coaxial cable shielding components in 5G base station equipment.
With Nagoya positioning itself as a next-generation EV and energy innovation hub, C17500 plays a key role in lithium-ion battery module busbars, cell interconnects, and thermal management components. Its high conductivity minimizes energy loss while its mechanical strength ensures long-term structural integrity.
Global megatrends are accelerating the adoption of high-performance copper alloys across Nagoya's key industries
The global shift toward electric vehicles is driving unprecedented demand for high-conductivity, high-strength copper alloys. C17500 is increasingly specified for EV charging connectors, power distribution units, and motor winding contacts where both electrical efficiency and mechanical durability are non-negotiable.
Nagoya's manufacturing sector is rapidly integrating collaborative robots and automated assembly systems. C17500 copper alloy contacts and spring elements in robotic end-effectors and servo motor components require materials that maintain performance through millions of operational cycles without degradation.
Japanese manufacturers face increasing regulatory and market pressure to adopt sustainable materials. C17500's longevity — components lasting 3–5 times longer than alternatives — reduces replacement frequency and lifecycle environmental impact, aligning with Japan's carbon neutrality goals for 2050.
As electronic devices shrink and operating frequencies climb into GHz ranges, the demand for thinner C17500 strip and foil grows exponentially. The alloy's ability to be cold-rolled to sub-0.1mm thicknesses while retaining mechanical strength addresses the miniaturization demands of next-generation electronics.
Post-pandemic supply chain disruptions have accelerated Japan's effort to localize critical materials sourcing. Nagoya's manufacturers are actively building partnerships with reliable Asian suppliers of C17500 alloy to ensure supply continuity for just-in-time production schedules.
Nagoya's precision manufacturers increasingly demand custom C17500 profiles — specialized cross-sections, surface finishes, and temper conditions — reducing downstream machining costs. Suppliers capable of providing near-net-shape extrusions and precision-slit strip command significant market premiums.
How C17500 copper alloy integrates into Nagoya's most critical manufacturing processes and products
C17500 strip is precision-formed into high-current contact springs for DC fast-charging connectors used in Nagoya's growing public EV charging network. The alloy's conductivity ensures minimal I²R heating even at 150kW charging rates.
Local relay manufacturers in the Nagoya area use C17500 for contact bridges and spring armatures in industrial contactors rated for 600V/400A continuous service. The alloy's resistance to contact welding under fault conditions is a key selection criterion.
Nagoya's optoelectronics manufacturers specify C17500 heat spreader substrates for high-power laser diode arrays. The alloy's thermal conductivity of approximately 210 W/(m·K) combined with low CTE mismatch minimizes thermal stress at die-attach interfaces.
Measuring instruments and analytical equipment manufactured in Nagoya rely on C17500 flat springs for zero-hysteresis force sensing elements. The alloy's consistent modulus of elasticity and fatigue life exceeding 10⁷ cycles ensure instrument calibration stability.
Nagoya's JAXA-adjacent aerospace supply chain uses C17500 for flight-critical electrical connectors and thermal interface components in avionics. The alloy meets AMS 4535 specifications and maintains performance across the wide temperature range encountered in aerospace applications.
Aichi Prefecture's growing medical device industry employs C17500 for surgical instrument springs, MRI-compatible fixtures (non-magnetic), and diagnostic equipment contacts. The alloy's biocompatibility and sterilization resistance expand its utility in healthcare applications.
Sichuan Kepai New Material Co., Ltd. — Your Trusted Partner for Advanced Copper Alloy Solutions
Sichuan Kepai New Materials Co., Ltd., established in 2017, is a high-tech enterprise integrating research and development, production, and sales. Currently, the factory covers an area of approximately 9,000 square meters, with an office space of about 1,000 square meters.
The company primarily engages in the production of strategic emerging new materials for the national 13th Five-Year Plan, including special copper alloys such as tellurium copper, high-conductivity oxygen-free copper, silver copper, and dispersion copper, while also focusing on the research and development of high-conductivity, easy-to-machine, high-strength copper alloys. The products are mainly applied in high-tech fields such as new energy vehicles, 5G technology, laser cutting, and lithium battery relays.
Innovation-driven development · Quality wins the market
The company is located in the western area of the Sichuan Guanghan Industrial Development Zone, adjacent to National Highway 108, boasting a superior geographical location and convenient transportation, which lays a solid foundation for the rapid development of the enterprise. Since its establishment, Kepai has adhered to the business philosophy of "innovation-driven development, quality wins the market," committed to providing customers with the highest quality high-end copper alloy materials, and promoting industrial upgrading and sustainable development.
Four pillars that define Kepai's competitive excellence in the copper alloy industry
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. Many of its technological achievements have reached international advanced levels and have been successfully applied in various industries such as new energy vehicles, precision machining parts, plasma cutting, relays, and energy storage, earning widespread recognition and praise in the market.
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, creating significant economic and social benefits for customers.
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, the company actively expands into overseas markets, participates in international competition and cooperation, and strives to promote Kepai's brand influence on the global stage.
We understand that the long-term development of an enterprise is inseparable from an excellent corporate culture. We advocate the corporate spirit of "integrity, innovation, collaboration, and win-win," encouraging employees to explore boldly and innovate courageously, while also emphasizing teamwork and talent cultivation, striving to create a harmonious, open, and inclusive work atmosphere. We believe that only by continuously pursuing excellence and creating value can we win the trust of customers and the respect of society.
Quality certifications and global market presence that validate our commitment to excellence
State-of-the-art manufacturing and testing equipment ensuring the highest quality copper alloy products
Smelting
Laying-off
Extrusion
Drawing
Straightening
Package
Eddy Current Conductance Instrument
Chemical Composition Test Room
Metallographic Sample Polishing Machine
Microcomputer Controlled Electro-Hydraulic Servo Universal Testing Machine
Liquid Crystal Display Electronic Universal Testing Machine
Hardness Tester
Looking ahead, Sichuan Kepai New Materials Co., Ltd. will continue to uphold its original intention, with even greater enthusiasm and determination, to engage in research and application in the field of new materials, contributing to the development of the new copper alloy materials industry in China and globally. We look forward to working hand in hand with friends from all walks of life to create a brilliant future together!
Explore Our Full Product Range →Explore our comprehensive range of specialty copper alloy materials for every industrial need
C11000 Pure Copper Foil
C19160 High Strength Copper Alloy
Characteristics and Application of High Performance Tellurium Copper
Excellent Copper Alloy Material — Beryllium Copper
High Conductivity C51100 Phosphor Copper
C17200 High Elastic Beryllium Copper Foil
Free-Cutting Copper Alloy Sulfur Copper
C18150 Chromium-Zirconium Copper Alloy
