Explore our high-conductivity, precision-engineered copper alloy lines trusted by global OEMs and industrial manufacturers.
Focus on high conductivity and high strength free cutting tellurium copper and other copper alloys.
Established in May 2017, Sichuan Kepai New Materials Co., Ltd. is a high-tech private enterprise specializing in the research and development, production, and sales of high-conductivity and high-strength free-cutting tellurium copper, oxygen-free electronic copper (OFE C10100), and other high-end, customized special copper alloys. Our cutting-edge manufacturing facility incorporates the complete industry pipeline from melting and casting to final extrusion, cold drawing, and quality testing.
With an unwavering commitment to quality and technical innovation, we have gained a remarkable share of the international advanced materials market, serving critical sectors such as semiconductor packaging, high-vacuum engineering, medical devices, new energy vehicles (NEVs), and aerospace applications globally.
Understanding the critical metallurgy, performance metrics, and strict purity requirements defining ASTM B170 Grade 1 electronic-grade copper.
C10100 OFE copper is refined to achieve a minimum copper purity of 99.99%, with oxygen levels strictly controlled below 5 ppm (0.0005%) and volatile element concentrations virtually eliminated to prevent high-vacuum outgassing.
Boasting a nominal electrical conductivity of 101% IACS (International Annealed Copper Standard) and outstanding thermal conductivity, OFE C10100 provides minimal power loss and maximum thermal dissipation.
Conventional coppers suffer catastrophic failure in hydrogen-rich, high-temperature environments. Our vacuum-refined C10100 copper prevents hydrogen embrittlement, ensuring absolute stability during brazing and welding.
In ultra-high vacuum (UHV) systems, such as those utilized in quantum computing chambers, particle accelerators, and extreme ultraviolet (EUV) lithography machines, the presence of volatile impurities can lead to high outgassing rates. These outgassed molecules degrade the vacuum and contaminate critical optics or semiconductor substrates. C10100 (OFE) is processed through a strict, multi-stage vacuum melting protocol that selectively removes volatile elements (such as Lead, Antimony, Bismuth, Sulfur, and Phosphorus) to less than 1 ppm each. Standard high-conductivity copper grades like C11000 (ETP) contain higher levels of oxygen and impurities, making them completely unsuitable for these delicate electronic and vacuum environments.
Navigating the global demands for advanced alloys requires a manufacturing partner that combines low structural costs with unmatched agility.四川科派新材料 (Sichuan Kepai New Materials) bridges the gap between state-of-the-art metallurgical technology and dynamic mass production.
We do not just ship copper; we deliver complete engineering compliance and localized customer assurance across the Americas, Europe, and Asia-Pacific.
Fully compliant with European RoHS and REACH directives, ensuring zero toxic trace elements in electronic applications.
Our manufacturing plant operates under verified ISO 9001:2015, ISO 14001:2015, and IATF 16949 quality systems.
Dedicated engineering teams provide quick responses to RFQs, handling complex specifications and physical properties.
Flexible distribution terms, door-to-door customs clearance, and stockholding contracts for stable, on-time delivery.
We provide a comprehensive selection of ultra-pure copper, precipitation-hardened, and free-machining alloys customized to your application's exact needs.
Specially refined grades (C10100, C10200) representing the highest chemical purity. Essential for extreme-vacuum chambers, cryogenic installations, high-voltage busbars, and superconducting applications requiring zero-outgassing properties.
Combining high electrical conductivity (min 93% IACS) with excellent machinability (85% of free-cutting brass). Perfect for plasma cutting nozzles, electrical connectors, switchgear components, and new energy vehicle charging connectors.
The "King of Copper Alloys" offering extreme tensile strength exceeding 1380 MPa (200 ksi) after simple heat treatment, combined with high elasticity, fatigue resistance, and spark-resistant safety characteristics.
Providing exceptional self-lubricating behavior, low friction, and immense wear resistance under heavy loads. Optimized for marine bushings, high-stress bearings, and continuous heavy-machinery slides.
A specialized copper-sulfur formulation engineered for maximum production efficiency. Ideal for high-volume screw machine operations where both rapid machining speed and high electrical transmission are required.
A precipitation-hardened, multi-component copper alloy demonstrating excellent thermal relaxation resistance. Crucial for heavy-duty spring contacts, high-temperature terminal blocks, and electronic relays.
Our custom-engineered C10100 OFE copper and specialized copper alloys power essential modern industries worldwide.
From antimicrobic copper hospital touchpoints to high-precision RF amplifiers inside MRI scanners, our high-purity materials ensure reliable performance and clinical safety.
High-conductivity alloys are key to maximum efficiency and rapid heat dissipation in electric powertrains, battery cell-to-cell busbars, high-voltage wiring, and public supercharging connectors.
High-altitude generators, complex orbital electronics, telemetry data transmission wires, and rocket thruster cooling jackets require the exceptional reliability of Kepai's certified alloys.
Excellent resistance to seawater corrosion, salt-spray oxidation, and marine bio-fouling makes our specialized bronzes and copper-nickels the perfect choice for offshore extraction systems and vessel piping.
By blending superior thermal conductivity with high-efficiency free-cutting tellurium copper, our alloys extend the operational lifespan of heavy-duty plasma cutter nozzles and electrode holders.
Providing structural busbars, specialized connectors, and high-frequency inverter windings necessary to stabilize renewable energy generation and battery container interfaces.
We invest heavily in state-of-the-art testing equipment, continuous casting refinement, and advanced material research to drive industry progress.
Our company has established its own independent R&D team, equipped with a complete production system and mature production technology. This allows us to maintain deep, hands-on control over structural alloy quality.
In addition to traditional copper alloys, we have developed a new type of highly conductive, oxygen-free tellurium copper. Compared with traditional copper tellurium, this material offers superior structural purity and lower processing resistance.
Our manufacturing plants have passed ISO9001:2015, ISO14001:2015, and OHSAS 45001:2018 certifications, reflecting our international standards in quality assurance, environmental protection, and occupational safety.
We actively participate in formulating national and industrial standards for tellurium copper and other specialty alloys, elevating the technical benchmark and reputation of the Chinese metallurgical sector globally.
Through our advanced, low-emission melting equipment, eco-friendly scrap recovery programs, and lead-free alloy developments, we actively support global carbon-reduction and corporate sustainability goals.
Equipped with optical metallographic analyzers, high-precision eddy current conductivity meters, and tensile strength testers to guarantee zero defects in every production batch.
A strategic outlook on how technological breakthroughs are driving unprecedented demands for high-purity C10100 (OFE) copper.
As semiconductor lithography shrinks to 3nm nodes and below, EUV optical paths operate under ultra-high vacuum conditions. Optical mirror brackets and critical sensors must use C10100 copper to ensure completely zero outgassing, high conductivity, and complete dimensional stability under temperature variations.
Quantum computing processors require operating temperatures near absolute zero inside cryostats. The thermal transport links, shielding cans, and microwave coax cables in these cryostats depend on C10100 OFE copper, which maintains outstanding electrical and thermal conductivity even in sub-Kelvin conditions.
The push toward global carbon neutrality is accelerating the adoption of massive energy storage systems and mega-watt fast-charging ports for commercial electric trucks. Purity-controlled copper alloys are essential to avoid overheating, minimize transmission loss, and handle higher current densities safely.
Answers to crucial technical, procurement, and logistics questions from professional procurement officers and system design engineers.
Contact Sichuan Kepai's engineering and sales specialists today. Receive detailed specifications, competitive bulk quotes, and custom alloy design consulting matching your exact industrial blueprint.
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