Brown alumina oxide

Brown alumina oxide Brown alumina oxide is made of bauxite, anthracite coal, and smelted in electric-arc furnace of high temperature more than 2000 degrees. brown alumina oxide are suitable for metal with high tensile(like: steel, malleable iron, bronze etc). Suitable for product high consolidation abrasive, and suitable for grinding, polishing, blasting, precision casting etc,brown alumina oxide is also used for refractory material. brown alumina oxide with characteristics like: high purity, good crystalline liquidity, low coefficient of linear expansion, corrosion resistance, high temperature, high strength.