Explore our high-conductivity, high-strength engineered copper alloys designed for critical applications.
Advanced lead copper bronze materials manufactured to precise specifications, offering superior wear resistance and low friction coefficients for heavy-duty industrial components.
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Unmatched electrical and thermal conductivity combined with excellent free-machining properties. Ideal for high-speed electrical connectors and plasma cutting tips.
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Engineered for maximum machining efficiency. C14700 offers high electrical conductivity and excellent hot and cold formability for high-volume manufacturing.
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Electrolytic Tough Pitch (ETP) copper featuring a minimum of 99.90% purity, delivering exceptional electrical conductivity and thermal transfer capabilities.
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Leaded beryllium copper alloy combining the high strength of C17200 with excellent machinability, perfect for intricate automatic screw machine parts.
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Ultra-pure oxygen-free tellurium copper designed for high-vacuum applications, hydrogen embrittlement resistance, and superior electrical performance.
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Custom-formulated beryllium copper alloys tailored to demanding mechanical properties, offering unmatched fatigue resistance and high yield strength.
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Premium grade C14500 alloy offering a unique combination of high electrical conductivity, excellent machinability, and superior corrosion resistance.
Learn MoreEstablished in May 2017, Sichuan Kepai New Materials Co., Ltd. is a leading high-tech enterprise specializing in the research, development, production, and global supply of high-conductivity, high-strength free-cutting tellurium copper, beryllium copper (including C17200), and other high-performance copper alloys.
Operating from our state-of-the-art 29,000 square meter facility, we leverage advanced manufacturing systems to deliver metallurgical solutions that meet the stringent demands of modern aerospace, automotive, medical, and telecommunication industries worldwide.
The definitive metallurgical guide to the strongest copper-based alloy available in the commercial market.
C17200 Beryllium Copper, also known as Alloy 25, represents the absolute pinnacle of high-strength copper alloys. By combining trace amounts of beryllium (1.8% to 2.0%) with high-purity copper, this material undergoes precipitation hardening (age hardening) to achieve mechanical properties comparable to high-strength alloy steels, while retaining the excellent thermal and electrical conductivity characteristic of copper.
For procurement managers and design engineers, understanding the exact C17200 material properties is critical for optimizing component lifespans in high-stress, abrasive, or corrosive environments. Below is a comprehensive breakdown of the physical, mechanical, and thermal specifications of custom C17200 alloys in their fully age-hardened (TF00/TH04) states.
| Property Category | Specific Metric | Value (Imperial / Metric) |
|---|---|---|
| Chemical Composition | Beryllium (Be) % / Cobalt + Nickel % | 1.80% - 2.00% / Min 0.20% (Be), Max 0.6% (Co+Ni) |
| Tensile Strength | Ultimate Tensile Strength (UTS) | 165 - 200 ksi / 1140 - 1380 MPa |
| Yield Strength | 0.2% Offset Yield Strength | 140 - 175 ksi / 965 - 1205 MPa |
| Hardness | Rockwell C (HRC) | 36 - 42 HRC |
| Electrical Conductivity | % IACS (International Annealed Copper Std) | 22% - 28% IACS |
| Thermal Conductivity | At 20°C (68°F) | 60 Btu/ft·hr·°F / 105 W/m·K |
| Modulus of Elasticity | Tension Modulus | 19,000 ksi / 131 GPa |
| Density | Specific Gravity | 0.302 lb/in³ / 8.26 g/cm³ |
How the transition to electrification, aerospace expansion, and green energy is driving the demand for custom copper alloys.
The global shift toward Electric Vehicles (EVs) and smart grids has created unprecedented demand for high-performance connectors. Custom C17200 alloys provide the high current-carrying capacity and mechanical resilience required for high-voltage EV battery terminals and charging interfaces.
Global procurement teams are actively diversifying their supply bases to mitigate geopolitical risks. Partnering with vertically integrated Chinese manufacturers like Sichuan Kepai ensures a stable, high-volume supply of certified copper alloys, bypassing traditional bottlenecked channels.
With tightening RoHS, REACH, and ESG regulations, global buyers require transparent material sourcing. Sichuan Kepai implements eco-friendly manufacturing processes and offers lead-free or low-lead alternatives, ensuring seamless compliance across European and North American markets.
At Sichuan Kepai New Materials, we have integrated Industry 4.0 principles into our manufacturing lines to achieve unmatched precision and efficiency. Our automated casting, extrusion, and heat-treatment facilities are monitored in real-time to guarantee consistency in grain structure and mechanical properties across every batch of C17200 beryllium copper.
By maintaining complete control over the entire supply chain—from raw material sourcing to final precision drawing and testing—we eliminate middleman markups and reduce lead times by up to 35% compared to Western competitors. This vertical integration allows us to offer highly competitive wholesale pricing without compromising on international quality standards.
Where C17200 and Kepai's advanced copper alloys prove their worth under extreme operating conditions.
C17200's absolute non-magnetic properties make it the premier choice for critical components inside Magnetic Resonance Imaging (MRI) machines, surgical instruments, and high-precision diagnostic sensors.
With high thermal conductivity and mechanical strength, our copper alloys are widely utilized in EV battery busbars, power distribution units, and high-speed charging connectors to ensure optimal energy transfer.
In aerospace, C17200 is used for landing gear bushings, actuator bearings, and highly reliable electrical connectors that must withstand extreme vibration, temperature fluctuations, and corrosive aviation fluids.
Offering excellent resistance to seawater corrosion and marine biofouling, our copper alloys are ideal for offshore oil drilling equipment, underwater sensor housings, and marine propulsion shaft sleeves.
Our high-performance tellurium copper and beryllium copper alloys are extensively used in plasma cutting electrodes, electrode holders, and resistance welding tips, offering extended service life.
High-conductivity copper alloys are critical for solar inverter terminals and utility-scale battery storage connectors, minimizing transmission losses and maximizing system efficiency.
Our commitment to technological innovation, quality assurance, and sustainable manufacturing.
We have established a dedicated in-house R&D team equipped with advanced metallurgical testing laboratories. This allows us to continuously innovate and customize alloy compositions to meet unique customer requirements.
Beyond traditional alloys, Kepai has developed a new type of highly conductive, oxygen-free tellurium copper. This material offers superior electrical conductivity and hydrogen embrittlement resistance compared to standard alloys.
Sichuan Kepai is fully certified under ISO 9001:2015 (Quality Management), ISO 14001:2015 (Environmental Management), and ISO 45001:2018 (Occupational Health & Safety), ensuring compliance with global manufacturing standards.
Get authoritative metallurgical and commercial answers regarding C17200 beryllium copper and custom copper alloys.
Whether you need custom C17200 beryllium copper, high-conductivity tellurium copper, or specialized bronze alloys, our engineering team is ready to assist you with material selection, technical specifications, and competitive wholesale quotes.
Send Inquiry / Request QuoteBrowse our extensive range of high-conductivity, wear-resistant, and free-cutting copper alloys.
Ultra-high purity oxygen-free copper (OFC) delivering maximum electrical and thermal conductivity, engineered specifically for high-vacuum electronics and semiconductor applications.
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Premium grade beryllium copper alloys designed for high-stress spring contacts, switches, and non-sparking safety tools, offering exceptional wear and fatigue resistance.
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High-machinability sulfur copper alloys designed for high-volume automated screw machine production, offering a perfect balance of conductivity and machinability.
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C17500 alloy offering moderate strength combined with high electrical conductivity (up to 60% IACS), widely used in resistance welding electrodes and electrical switchgear.
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High-conductivity copper-nickel-beryllium alloy (CuNi2Be) engineered for high-temperature electrical applications, spring connectors, and projection welding dies.
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Deep technical insights and supply options for high-performance tellurium copper, optimized for high-speed machining and maximum electrical efficiency.
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Premium wholesale C14500 tellurium copper rods, bars, and profiles, manufactured to strict international tolerances for high-speed CNC machining.
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High-elasticity tin-phosphorus bronze alloy (CuSn4) offering excellent corrosion resistance, high fatigue strength, and superior cold formability for spring components.
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