أكسيد الألومنيوم البني P500 (D50: 30.2 ± 1.5 ميكرومتر)

Brown Aluminum Oxide is also called brown corundum and brown fused alumina,is a virgin grain, manufactured in an electric furnace that produces an extremely tough, long-lasting blasting grain which is graded to exacting standards. It may be repeatedly recirculated and is chemically stable and not affected by alkalies, acids or harmful atmospheres.