Core Advantages: Beyond Purity, Exceptional Performance
Ultimate Purity, Laying a Solid Foundation for Performance
Made from high-quality electrolytic copper sourced from domestic or international suppliers, with a copper content of up to 99.996% or higher, strictly controlling oxygen content and total impurity levels (≤0.0065%), effectively eliminating “resistance-inducing impurities” such as phosphorus, sulfur, iron, and nickel. This ensures the stability and superiority of electrical conductivity from the source, preventing issues like localized overheating and transmission losses caused by impurities. It far exceeds the standards of ordinary copper wire and meets the stringent purity requirements of high-end applications. Based on purity grades, it is available in models such as TU00, TU1, TU2, and TU3 to meet the diverse needs of different industries.
Exceptional electrical and thermal conductivity, high energy efficiency
Leveraging its ultra-high purity, the product achieves a maximum electrical conductivity of 102% IACS (International Annealed Copper Standard) and a resistivity of ≤0.017241 Ω·mm²/m at 20°C. It offers high current transmission efficiency and low losses; for every 1% increase in conductivity, 10,000 meters of cable can save up to 3,800 kWh of electricity annually, significantly reducing energy costs over the long term. It also features excellent thermal conductivity, rapidly dissipating heat generated during equipment operation to prevent component damage from overheating and extend equipment lifespan, making it particularly suitable for high-frequency and high-power applications. After 30 minutes of annealing at 700°C, the electrical conductivity remains at 101.5% IACS, demonstrating outstanding performance stability.
Superior Mechanical Properties, Easy to Process and Form
The product combines outstanding tensile strength with high elongation. At a cold deformation rate of 50%, tensile strength reaches 372 MPa; after annealing at 700°C, tensile strength is 220 MPa, with elongation as high as 43%. It exhibits excellent toughness, withstanding repeated bending and stretching without breaking easily. In torsion tests (10 rotations in each direction), cracking is limited to within 2 mm. It also possesses excellent plasticity, allowing for precise drawing into wire diameters ranging from 0.02 mm to 8.0 mm. It can be processed into various structures such as single wires, stranded wires, and flat wires, and is compatible with subsequent processing requirements such as bare wire, tin-plating, silver-plating, and nickel-plating, meeting installation and usage requirements in various scenarios.
Stable, Corrosion-Resistant, and Long-Lasting
Its high-purity properties result in low chemical reactivity; it does not react with dry air or oxygen at temperatures below 185°C. The thickness of the surface oxide film is controlled between 200–300 Å, with copper powder content ≤6 g, effectively resisting corrosion in harsh environments such as humidity and exposure to acids and alkalis. It shows no oxidation after 72 hours in a 5% salt spray test, preventing issues like poor contact and performance degradation caused by corrosion. Compared to ordinary copper wire, it offers superior resistance to hydrogen embrittlement, significantly extending service life and reducing maintenance and replacement costs, making it ideal for industrial applications requiring long-term, stable operation.
Stringent Quality Control, Traceable Quality
We have introduced high-end equipment such as the German SMS Group CONTIROD continuous casting and rolling line and the German Niehoff MSM85 double-head wire drawing machine. The melting furnace and holding furnace are controlled separately, with temperature tolerances maintained within 5°C. The entire production process is automated to minimize human error. We have established a five-dimensional inspection system. Using a handheld XRF analyzer, we can identify impurity levels within 3 seconds. We measure resistivity via the four-terminal method and examine fracture surfaces under an electron microscope, complemented by online flaw detection. This ensures that every batch of products has a clean surface, is free of cracks and burrs, and complies with international standards such as ISO 4738, DIN EN 7625, and ASTM B49, as well as national standards including GB/T 3952-2008 and GB/T 3953-2009. A complete inspection report is provided for each batch, ensuring full product traceability.
Versatile Applications, Empowering High-End Manufacturing
Electronics Industry
As the core conductor in electronic components, Copper Material is widely used in waveguides, resonators, vacuum tubes, superconductor substrates, electron tube leads and
cathodes, copper busbars, and more. It is also suitable for internal chip connections, fine wiring on mobile phone circuit boards, and server busbars. With its high conductivity and low loss characteristics, it ensures the accuracy and stability of signal transmission in electronic devices. Silver-containing oxygen-free copper wire is also suitable for electrical conductors in high-temperature environments, offering excellent resistance to high-temperature softening.
Aerospace Sector
Suitable for high-power microwave vacuum devices used in spacecraft, it is employed in the manufacture of components such as slow-wave helical lines. Compared to tungsten and molybdenum materials, its superior electrical conductivity reduces high-frequency losses and minimizes heat generation, while its excellent thermal conductivity facilitates heat transfer. Through welding processes, it can be seamlessly integrated with beryllium oxide ceramic clamping rods, meeting the demands of extreme flight environments and ensuring the stable operation of aerospace equipment.
Power and Energy Sector
Used in high-voltage/ultra-high-voltage transmission lines, transformer windings, motor windings, and connection wires for new energy vehicle battery packs. Large-gauge copper wires reduce power transmission losses, with line loss rates controllable below 2%. Flat copper wires, due to their low skin effect, are suitable for high-frequency transformers. In solar inverters and wind turbines, their high current-carrying capacity and weather resistance ensure the stable output of renewable energy.
Transportation Sector
Suitable for new energy vehicles, high-speed rail, and rail transit applications, including automotive wiring harness systems, motor windings, high-speed rail pantograph conductors, and onboard power distribution systems. The copper content in a single electric vehicle is approximately 40% higher than in a gasoline-powered vehicle. Its high purity enhances energy conversion efficiency, while its high toughness withstands vibrations and bending during vehicle operation, ensuring stable power transmission.
Quality Commitment and Partnership Assurance
1. Raw Material Assurance: We select only high-quality electrolytic Copper Tube,copper wire,and strictly reject substandard materials. Every batch of raw materials undergoes rigorous testing to ensure purity meets standards;
2. Production Assurance: Our fully automated production process involves strict control at every stage, with real-time monitoring of parameters such as temperature, tensile force, and wire diameter to prevent production errors;
3. Inspection Assurance: Every batch undergoes multiple tests, including spectroscopic analysis, resistivity testing, tensile strength testing, and surface flaw detection. Non-conforming products are never shipped, and comprehensive inspection reports are provided;
4. Service Assurance: A professional technical team offers one-on-one consultation services to assist customers with product selection, promptly responds to customization requests, and provides comprehensive after-sales and technical support to resolve any issues that may arise during use;
5. Certification Assurance: Our products comply with numerous international and domestic standards. We are certified under the ISO 9001 Quality Management System and ISO 14001 Environmental Management System, and can provide relevant certification documents. We have established long-term, stable partnerships with world-renowned enterprises, ensuring our quality is trustworthy.
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