Niobium (Nb from lat. Niobium) is rare, in terms of distribution in the earth's crust (0.002% by weight), a steel-gray metal. Niobium is of exceptional value for maintaining the growth rate and development of a number of high-tech and knowledge-intensive industries.
Among the key properties of niobium are:
high corrosion resistance;
resistance to various types of corrosion;
low efficiency from a collision with neutrons;
the formation of alloys with heat-resistant and superconducting qualities;
ease of welding;
maintaining operability at low temperatures;
heat resistance (temperature: melting ~ 2415 ° С, boiling ~ 5100 ° С);
hardness (45 kg / mm2 according to Brinell);
tensile strength (up to 34.2 kg / mm2 at 20 ° C)
outstanding electrical performance; Niobium Anodes
resistance to mineral acids;
high dielectric properties of the oxide film;
low specific gravity.
Also, the metal is resistant to aqueous solutions of ammonia. The unique property of an element to form a dielectric oxide film in acidic electrolytes has found application in the manufacture of miniature high-capacitance capacitors, where the element replaces the more expensive tantalum.
The metallurgical industry produces several types of semi-finished products from niobium, the most popular of which are: niobium wire, niobium tape, niobium rod, niobium pipe, niobium sheet and niobium powder. The required characteristics are given to semi-finished products from niobium by metal processing according to certain technological schemes.
The range of applications of niobium in the form of functional products and materials based on it includes:
auto, ship, aircraft and rocket science;
production of oil and gas processing equipment;
manufacturing of industrial pipes, including for oil and gas pipelines;
production of optically active materials, etc.