Brown corundum

Useage:brown fused alumina abrasive for grinding,producing polishing materials,casting,producing spraying material and fire-proof material etc. it's widely used in the line of steel,chemical industry and others. brown fused alumina is fused and crystalized unded high temparature from amixture of barxite and other raw materials.it is characterized by its high hardness ,good toughness and sharp in size. Abrasives tools mead of it are suitable for grinding metals of high-tensile strength such as:carbon steel,general-purpose alloy steel,annealed malleable iron and hard bronze,etc.it also can be used as refractory materials. Brown Corundum(BFA) TechnicalDate: Product NameFirst Grade Brown CorundumSecond Grade Brown CorundumThird Grade CorundumSpecificationF4-325F4-325F4-325 AL2O3 ≥94%85%75-80%Fe2o3<0.3%<0.5%<1.0%TiO21.5-3.8<2.8%<3.0%SiO20.5%0.8%1.0%Density3.5g/cm33.5g/cm33. 5 g/cm3