Brown fused alumina, commonly known as carborundum, with the characteristics of high purity, good crystallization, strong liquidity, low linear expansion coefficient,corrosion resistance.Abrasive tools is made of brown fused alumina, suitable for grinding the high tensile metals, such as all kinds of steel, malleable cast iron, hard bronze, etc., also can make advanced refractories.Kimcary management of brown fused alumina, AL2O3 content is between 94% and 99%.