The brown fused alumina is composed of aluminum alumina, anthracite and iron scale as raw material, and finished by melting under high temperature in a three-phase arc furnace, reduced, refined and cooled into crystallizing block, and then crushing, The product is one of artificial grinding material, which is required and used at most. It has many features in experience, such as, moderate hardness, high toughness, high anti-crushing capacity, high temperature resistance, oxidation and corrosion resistance, applicability, etc., widely used in grinding copper and steel, fabricating carbon steel and common alloy steel, and casting and forging steel and hard bronze.