Sand blasting abrasives Fused brown alumina BFA Brown fused alumina is made of bauxite/anthracite coal. Abrasive tools made by brown fused alumina are suitable for metal with high tensile(like: steel, malleable iron, bronze etc).and suitable for grinding, polishing, blasting precision casting, and also for refractory material. Brown fused alumina with characteristics like: high purity, good crystalline liquidity, low coefficient of linear expansion, corrosion resistance, high temperature, high strength.
