High-performance custom alloys engineered to optimize electrical conductivity, mechanical strength, and structural integrity across demanding global applications.
Offers superior electrical/thermal conductivity combined with excellent high-speed machining performance.
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Unmatched strength-to-conductivity profile. Ideal for heavy stress electrical contacts and mechanical springs.
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High-strength leaded beryllium copper offering premium machinability for complex micro-precision turnings.
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Engineered for extreme ease of machining with steady conductivity, preventing high scrap rates.
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Highly refined electrolytic copper yielding minimum 100% IACS rating, essential for transformers and busbars.
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In-depth technical breakdown and customized application layouts of C14500 elements.
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Refined oxygen-free copper featuring ultra-low hydrogen embrittlement susceptibility for high vacuum systems.
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Offers reliable yield strength and thermal endurance for high-stress electrical contacts.
Learn MoreFocusing on high conductivity, high strength, and free-cutting tellurium copper and specialized copper alloys since May 2017.
Sichuan Kepai New Materials Co., Ltd. is a high-tech enterprise dedicated to the R&D, manufacturing, and distribution of premium grade conductive alloys. Our core expertise lies in custom electrical conductors designed to meet strict structural and conductivity guidelines for industry sectors globally.
By developing new alloys, such as our proprietary oxygen-free highly conductive tellurium copper, we help engineers and procurement directors overcome performance limits in electric vehicles, automated systems, medical gear, and heavy aerospace components.
Addressing the strategic supply chain requirements, volatile metal markets, and precision demands of engineering projects globally.
Global OEMs require stable procurement pipelines for specialty non-ferrous alloys.四川国派 (Kepai) mitigates lead time risk by maintaining robust inventory configurations of refined cathode raw materials and automated casting units.
From medical connectors requiring absolute zero magnetic interference to high-voltage EV busbars carrying continuous thermal load, our processing complies with detailed parameters (ASTM, EN, JIS standards).
Where conventional options fail, our metallurgical laboratories formulate trace element profiles to increase material hardness without impacting electrical performance, optimizing total system cost.
Technical Insight: Sourcing electrical conductors is no longer just about buying generic copper wire. Today's applications require optimized electrical conductivity (IACS%), tensile strength (MPa), machinability indexes, and resistance to environmental stress crack corrosion. Matching these parameters to your operational environment is key to a reliable procurement strategy.
An analysis of chemical structures, conductivity performance, and metallurgical properties of primary electrical conductor materials.
| Alloy Type | UNS Grade | Electrical Conductivity (% IACS) | Tensile Strength (MPa) | Machinability Index (Brass = 100) | Primary Industrial Use Case |
|---|---|---|---|---|---|
| Tellurium Copper | C14500 | ≥ 93% | 250 - 380 | 85 | Plasma cutting nozzles, EV power terminals, smart switchgears |
| Beryllium Copper | C17200 | 22% - 30% | 1100 - 1380 | 20 | Aerospace instrumentation, heavy wear bushings, spring connectors |
| Beryllium Cobalt Copper | C17510 | ≥ 45% | 680 - 960 | 30 | Projection welding dies, resistance welding electrodes, sensor pins |
| Sulfur Copper | C14700 | ≥ 95% | 240 - 360 | 85 | Screw machine parts, electrical relays, high-conductivity assemblies |
| Pure Copper (ETP) | C11000 | ≥ 100% | 220 - 320 | 20 | Electrical distribution busbars, grounding systems, custom foils |
| Brass (CuZn30) | C26000 | ≥ 28% | 300 - 450 | 30 | Deep drawing parts, stamping terminals, mechanical fasteners |
Modern electrical systems demand distinct balances between electrical conductivity and mechanical properties. While C11000 Pure Copper offers high performance in raw electron flow, its low machinability index (20) makes high-volume precision turning slow and costly. This is where C14500 Tellurium Copper excels, maintaining ≥ 93% IACS while boosting machinability to 85. This ensures faster run cycles and reduced tool wear during complex milling and Swiss-turn operations.
For projects requiring extreme load capability without deformation, precipitation-hardening alloys like C17200 Beryllium Copper provide tensile strengths exceeding 1100 MPa. Understanding these differences allows procurement teams to choose the most suitable alloy, preventing field failures and reducing costs.
Our customized electrical conductor alloys operate under critical conditions across key global industry sectors.
Copper's high conductivity and non-magnetic options make it ideal for MRI systems, diagnostic electronics, and antibacterial touch surfaces in medical facilities.
Critical EV systems depend on tellurium copper terminals, busbars, and rapid charging infrastructure to handle high currents with minimal thermal buildup.
High reliability connectors, power generators, and data transmission systems rely on lightweight, high-strength beryllium copper configurations.
Excellent resistance to seawater corrosion and marine fouling makes our copper alloys suitable for offshore structures, sensors, and power lines.
Tellurium copper is widely used for manufacturing plasma nozzles and welding electrodes due to its high thermal dissipation and resistance to wear.
Large solar grids and power storage units rely on high-purity copper connectors to reduce electrical resistance and optimize system efficiency.
How our independent research labs and advanced testing facilities ensure the quality of every production run.
Our R&D facility brings together experienced metallurgical engineers focused on high-performance alloys. Through collaborations with universities and continuous testing, we refine production steps like induction melting, precise cold drawing, and heat treatments.
Proprietary Technology:四川国派 (Kepai) has developed a high-conductivity oxygen-free tellurium copper. Compared to standard tellurium copper, this material has lower residual oxygen levels, preventing hydrogen embrittlement during brazing or welding operations.
We actively contribute to the development of national and international industrial standards for specialized copper alloys, reflecting our commitment to technical progress and material reliability.
From raw material melting to finished extruded shapes, our complete production loop allows us to control the entire manufacturing process.
We operate under ISO9001:2015, ISO14001:2015, and OHSAS 45001:2018 (ISO 45001) management frameworks to ensure consistent quality and environmental compliance.
We select and process eco-friendly, low-lead, and lead-free copper alternatives to comply with international RoHS and REACH requirements.
Rigorous testing, system compliance, and certified production facilities ensure that our alloys meet high industrial standards.
Our products are distributed across domestic and international markets, serving high-precision manufacturing hubs globally.
Through partners in Europe, North America, and East Asia, we provide supply-chain support, material certifications, and custom extrusion shapes directly to international clients.
Detailed technical insights and sourcing advice for engineering and procurement professionals.
Explore our complete range of specialized non-ferrous products designed for precision stamping, forming, and electrical conductivity.
Phosphor bronze alloy offering high strength, wear resistance, and good elasticity for spring applications.
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High-grade copper alloy material with excellent wear, fatigue, and corrosion resistance for tough operating conditions.
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High-purity copper designed for electrical components requiring clean transmission and vacuum-level integrity.
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Optimized cold-forming properties suitable for deep drawing, stamping, and complex component forming.
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Premium grade tellurium copper alloy designed for stable electrical conductivity and clean machining.
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Combines high electrical conductivity with free-machining characteristics and low oxygen content.
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Sulfur-bearing copper designed to improve manufacturing efficiency through easy machining.
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Designed for applications that require low hydrogen embrittlement susceptibility along with high conductivity.
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