The scheme of extraction of niobium is similar to tantalum, for this reason, very often they get together. The main source of pure metal is a concentrate containing approximately 8% of an oxide of niobium. Technology of production of round or wire depends on the use in the future. Products in its composition can have impurities, which increase the most important quality. Often the wire is made to order, and its diameter may reach only some microns. For the manufacture of such products need high-tech equipment, the quality should be high, and parameters are to fractions of a micron. Wire and the circle represent a typical shape of semi-finished products for further industrial use. They are indispensable on the front lines of modern industry, thanks to the extraordinary advantages: higher reliability, ductility, exceptional corrosion resistance and heat resistance.
The circle of niobium produces the following range.
|Mark Nb||Diameter (mm)||Length (mm)||OKP code|
|NB 1||120||400 — 1250||17 6333 0111 06|
|NB 1||150||400 — 1250||17 6333 0112 05|
|NB 1||200||400 — 1250||17 6333 0113 04|
|NB 1||250||400 — 1250||17 6333 0114 03|
For samples of acceptable shrinkage and irregularities. But these defects must not go beyond the boundaries of acceptable standard deviations. Where there is a fracture, the wheel must remain intact and does not contain foreign inclusions or voids. The surface of wire should be clean with no cracks. Insignificant roughness or traces of broach allowed
Pure niobium is extremely malleable and can be rolled into the thinnest wire to a thickness of 0.01 mm. the tensile strength of niobium from 20 to 800 °C varies little: from 34.2 and to 31.2 kgf/mm2; as little change elongation: from 19.2% at 20 °C to 20.7%. at 800 °C. the Refractoriness of such wire allows to produce anodes, cathodes, grids vacuum devices high voltage. In addition, electron emission, equal to 4.01 eV is smaller in comparison with the application in vacuum technique similar to the refractory elements tungsten and molybdenum.
Niobium round popular in modern instrumentation, industrial chemistry, rocketry, nuclear power. Because it has a particularly strong atomic bond, its melting temperature is very high. 2468 °C. In the chemical industry, the metal has become a substitute for platinum. It is used for the production of parts of the devices, resistant to acids, cooling and heating devices that come into contact with aggressive substances. Niobium wire is used for the production of superconductors based on niobium-tin and niobium-titanium. Wire of niobium-silicon alloys are used in electronics and Nabieva-manganese wire used in the mercury rectifiers in the aviation and automotive spark plugs.
Supply certified and niobium round wire. The specification included data on the percentage composition and mechanical properties of products. We can easily buy in bulk any semi-finished products for large-scale production. We also work with retail buyers. A high level of service and speed of service are the face of our company.
Buy at best price
On the website LLC «Electrocentury-steel» reflects the most current information on the acquisition of rental of rare and refractory metals today. Our managers are ready to provide qualified advice on any current issues. Sell semi-finished products of rare and non-ferrous at a competitive price. The products are manufactured on the most modern equipment and meets the quality requirements of Russian state standard and international quality standards. Regular customers receive a discount system of discounts.