Chemical Composition Al2O3 more than 90% CaO+MgO+Fe2O3+others 2% Bulk Density 3.60g/cm3 Water Absorption less than 0.01% Hardness(Mohs) more than 9 Color White Size Dia(mm) 20 more or less 1.518 more or less 1.5 15 more or less 113 more or less 1 10 more or less 1 8 more or less 0.5 6 more or less 0.53 more or less 0.51 more or less 0.2(mm)Dimension more than 15 Wear Rate less than 0.08(mm)Dimension more than 13 Wear Rate less than 0.1(mm)Dimension more than 10 Wear Rate less than 0.12(mm)Dimension more than 8 Wear Rate less than 0.18(mm)Dimension more than 6 Wear Rate less than 0.2Character of Microcrystal Wear Alumina Ball(CIP) Using foreign imports, the original grain size less than 1 micron alumina, calcined with high-temperature tunnel kiln, the grain size controlled growth to more wear coefficient at the end. Coupled with advanced roller-made technology and equipment, not only ensured the whole round appearance, size specifications rich, but also guarantied the stability and reliability of the product qualityNotes:We can pack the products according to your requirement,also we can do OEM or ODM. The main application areas chemical inks cosmetics