Ultra Pure Copper Wire for Industrial Use

Core Advantages

• Ultra-High Purity for Superior Performance: Available in purity levels of 99.9% (3N), 99.99% (4N), 99.999% (5N), and even 99.9999% (6N) for specialized needs, significantly reducing the content of impurities such as iron, lead, and sulfur that affect conductivity and stability. The high purity ensures ultra low resistivity and near theoretical limit conductivity, minimizing energy loss during power and signal transmission.

• Excellent Physical & Chemical Properties: Boasting a density of 8.96 g/cm³, melting point of 1083°C, and electrical conductivity of up to 101% IACS (International Annealed Copper Material Standard), it exhibits exceptional thermal conductivity (401 W/m·K) and ductility. The wire can be easily drawn into ultra fine diameters (down to 0.002 mm) or formed into robust configurations, with high tensile strength (200-380 MPa) and elongation (15%-40%), resisting fatigue and breakage even under repeated stress.

• Stable & Durable in Harsh Environments: Adopting oxygen free refining technology (oxygen content ≤ 10 ppm for OFC grades), it eliminates oxide inclusions that cause microstructural weaknesses, ensuring long term stability without oxidation or performance degradation. It has excellent corrosion resistance, adapting to atmospheric, aqueous, and high-vacuum industrial environments, and can operate stably in a wide temperature range (-40°C to 120°C).

• Precision Manufacturing & Strict Quality Control: The entire production process follows international standards such as ASTM B170, B152, and IEC 60228, with multiple rounds of purity testing, surface inspection, and performance verification using advanced detection equipment. The surface is bright, smooth, and free of oxidation layers, ensuring good solderability and connection reliability for seamless integration into industrial equipment.

• Highly Customizable for Diverse Needs: We offer flexible customization of specifications, including diameter (0.002 mm - 8.0 mm), length, shape (solid wire, stranded wire, multi-strand wire rope, straight wire, coil wire), surface treatment (bare wire, tin plating, silver plating, nickel plating, enameling), and temper (soft annealed for flexibility, hard drawn for rigidity). Packaging can also be customized with plastic, wooden, or metal spools, and suitable shipping packaging (cartons, foam boxes, wooden cases) to meet different industrial application scenarios and transportation needs.

• Electrical & Power Transmission: Power cables, transformer windings, bus bars, and high-voltage transmission lines. The high conductivity reduces energy loss, improving transmission efficiency and ensuring stable power supply for industrial production.

• Electronics & Precision Components: Internal wiring of smartphones, computers, and hard drives; motor and generator windings; high-frequency conductors; bonding wires for integrated circuit packaging; and micro-wiring for flexible electronics. The ultra-fine diameter and high purity ensure minimal signal attenuation and stable performance.

• Vacuum & High-Tech Industries: Vacuum evaporation sources, high-vacuum electronics, glass-to-metal seals, and sputtering targets. The low gas release rate and high surface cleanliness make it suitable for vacuum environments.

• New Energy & Transportation: Solar PV systems, electric vehicle (EV) components, rail transit wiring, and aerospace equipment. It adapts to the high-performance requirements of new energy and transportation industries, ensuring long-term reliability under complex conditions.

• Industrial Manufacturing & Other Fields: Heat exchangers, welding wires, machined parts, and scientific research experiments. The excellent thermal conductivity and ductility make it suitable for various industrial processing and research needs.