Niobium (Nb) — 41-th element of the periodic table of Mendeleev. The atomic weight of 93,986, t ° melting 2741 ° K, t ° boiling point 5015 ° K. It is a brilliant grayish-silvery metal with a body-centered cubic crystal lattice of the form α-Fe, a = 0.3294 nm.
Production of niobium is increasing rapidly, due to the organic combination of such of its property as a small capture cross section for thermal neutrons, refractoriness, ability to form high-temperature and superconducting alloys, getter properties, corrosion resistance, low work on the output of electrons, excellent machinability of hot and cold pressure and the ability to weld. The main spheres of use of niobium: space and aeronautical engineering, defense industry, electronics, radio engineering, nuclear power and chemical products.
This is quite an expensive metal. Metal dust niobium is flammable and irritant skin and eyes. Some of its compounds are highly toxic. MPC niobium is 0.01 mg / l. When injected into the human body, this element causes severe neuritis and subsequent paralysis of the limbs.
Pure niobium and its alloys are used for the production of components of aircraft and rockets; skins for plutonium and uranium nuclear reactors (niobium carbide, t ° melting 3480 ° C), metal containers in a liquid state. Used as heat carriers in nuclear reactors, liquid sodium and potassium, are moved through the tubes of niobium. For niobium is characterized by low induced (artificial) radioactivity, because it makes containers for storage of radioactive waste. He claimed in the production of electrolytic capacitors; «Hot» fittings powerful generator and electronic lamps and (cathodes, anodes, grid, etc.). Because niobium alloys produce corrosion-resistant equipment in the chemical industry. They alloyed ferrous metals, among others — uranium. Niobium found application in cryotrons is the superconducting components of computers. He is also well known that it was used in the accelerating structures of the hadron collider.
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Steel pipes, alloy niobium, are the highest strength and corrosion resistance. Packed pipes can be transported as you like. When transporting they are protected from mechanical deformations, moisture and impact of active chemicals.
We sell niobium rental at the best price. The technical documentation includes data on the chemical composition, limiting the percentage of impurities; mechanical properties of products. We can buy in bulk, any semi-finished products for large-scale productions. We also offer optimal conditions for retail customers. High level of service and efficiency of service are the face of our company.
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In stock company «Electrovek-steel» is represented by a diverse range of products made of rare and refractory metals. We deliver certified niobium hire domestic and foreign manufacturers. Our staff members are always happy to provide expert assistance in the selection of metal-roll. We employ some of the most experienced management consultants. Strict compliance with the rules of production, excellent product quality and minimal lead times are the face of our company. For regular customers introduced discount prices.