Brown Fused Alumina

Brown fused alumina, also known as electro-corundum or brown corundum is produced from calcined and coal while gradual fusing in electric-arc furnace of high temperature more than 2000°C.

Brown fused alumina consists almost entirely of aluminium oxide and is almost iron-free. Brown fused alumina is less pure than white fused alumina.

The content of the Al₂O₃ in varies between 84% and 97%. Brown fused alumina does not contain lead and silica, contain small amounts of TiO₂, Fe₂O₃, CaO and MgO.

Brown fused alumina is used in abrasives, refractory applications and in stone industry, especcialy in polishing and grinding, blasting, processing non-ferrous metals and ceramics, ceramic grinding wheels and abrasive papers and clothes.