fine powder brown fused alumina/A for refractory materials and castable

Brown corundum is made of high quality bauxite, iron scrap and anthracite by high temperature smelting in electric arc. After grinding and shaping by self-mill, magnetic separation of iron is carried out and sifted into a variety of particle sizes. The main chemical composition is AL2O3, and its content is 94.5%--97%. Place of Origin Henan,China(mainland) Brand Name Sicheng Product Name Brown fused alumina Model Number 12#--220# Material AL2O3 Feature High Purity Usage Polishing,Refractory,Abrasive Color brown Advantage Whole Process Quality Control And High Performance Chemical Composition Al2O3,Fe2O3,TiO2,SiO2 Moh's hardness 8.9 Bulk density 1.53-1.99g/cm3 Real density 3.9g/cm3 Melting point 2250oc Maximum service temperature 1850oc Grade Top Grade Sample Sample Provided Customization Available