Brown Fused Alumina

It is a product Manufactured by gradual melting reduction of calcined bauxite in an electric Arc furnace at high temperature (approximately 2000 degrees Celsius). Its Chemical composition consists mainly of Al₂O₃(94,5-97%) and vestigial amounts of TiO₂, SiO₂, Fe₂O₃, CaO and MgO.

Brown Aluminum Oxide is Characterized by good toughness, high mechanical resistance and hardness (9 in Mohs scale). the micro hardness of the Material reaches about 1900kG/mm₂. Specific gravity (density) equals 3,90+/-0,05 G/cm₃. Bulk density depending on size equals 1,52-1,87 g/cm₃. It has relatively high Thermal conductivity and low thermal expansion. As regards electricity it is an Insulator.

Application:

     *Production of a broad Range of abrasive tools, e.g. Grinding wheels, abrasive segments, etc. that are Designed for processing durable articles, above all for steel processing,

Production of abrasive Papers and clothes,

      *in fireproof and ceramic Industry,

      *in sand-blast processing.