With a silver-gray metallic luster and a flexible texture, it boasts excellent ductility, high temperature resistance, and chemical stability, making it a core high-end product in the field of deep processing of rare metals.
This product is produced in strict accordance with national standards and high-end customized industry specifications. It can be categorized by purity into grades such as 3N-Nb (99.9%), 4N-Nb (99.99%), and 5N-Nb (99.999%); and by state into soft (O), semi-hard (Y1), and hard (Y2) states. Its thickness range meets the stringent demands for ultra-thin, high-purity, and high-performance niobium materials in various fields such as electronics, aerospace, new energy, chemical industry, and medical care.
Niobium boasts ultra-high purity and stable, reliable performance. Utilizing electron beam vacuum melting combined with multiple purification processes, we strictly control the impurity content of oxygen, nitrogen, carbon, iron, silicon, and other elements, achieving a maximum purity of 99.999%. High-purity niobium foil exhibits excellent chemical stability: it does not react with air, water, alkalis, or dilute acids at room temperature, and a dense passivation film easily forms on its surface. In concentrated acids and strong corrosive media, its corrosion resistance far exceeds that of stainless steel and ordinary alloys. It remains corrosion-free, oxidation-free, and deterioration-free even after long-term use, making it suitable for extreme chemical and precision electronic environments. High temperature resistance: Niobium has a melting point of up to 2468℃ and a boiling point of 4742℃. Niobium foil maintains stable mechanical properties at high temperatures ranging from 800–1200℃, without softening, deformation, or oxidation, allowing it to withstand high-temperature conditions for extended periods. Low temperature resistance: In ultra-low temperature environments of -196℃, it exhibits no cold brittleness, and its toughness and strength remain uncompromised, making it suitable for aerospace, superconductivity, and cryogenic engineering applications. It combines flexibility, tear resistance, and impact resistance, allowing for repeated bending, stamping, and forming without breaking. Its excellent physical properties make it suitable for precision applications. Low density and high specific strength: With a density of only 8.57g/cm³, it is much lower than refractory metals such as tungsten, molybdenum, and tantalum, achieving lightweight while maintaining high strength, meeting the weight reduction requirements of aerospace and other industries. It possesses good electrical and thermal conductivity, offering a balance of electrical, thermal, and corrosion resistance, making it suitable for precision electronic cooling and conductive connecting components. Its non-magnetic properties make it ideal for electronic devices and precision instruments where magnetic interference is a concern.
Niobium foil exhibits excellent cold workability and can be processed into various complex shapes through processes such as shearing, stamping, bending, welding, etching, and coating, including ultra-thin gaskets, sealing rings, electrode sheets, sputtering targets, heat sinks, and precision components. The surface can be treated to achieve glossy, matte, polished, or cleaned finishes, accommodating surface requirements for different application scenarios.
We offer five core customization services: purity customization, thickness/width customization, irregular shape processing customization, surface treatment customization, and roll weight/length customization. We can produce ultra-thin, ultra-wide, and ultra-long niobium foils according to customer needs. We also provide customized technical solutions tailored to different industries such as electronics, aviation, medical, and chemical, and offer full-process follow-up for production and quality control.
