Luoyang Mingzhen Bearing Steel Ball Co., Ltd is one of the famous zirconia balls manufacturers and suppliers in China, providing with zirconia balls free sample, welcome to import high precision bulk zirconia balls in stock from our factory.Ceramic balls could be separated into two types: non-oxide ceramic balls (silicon nitride, Si3N4 ball) and oxide ceramic balls (alumina and zirconia balls). Weight of a zirconia ball (Zr02 ball) is 77% weight of a general steel ball. Besides, zirconia balls have excellent performance of non-magnetic, electrical insulation, excellent corrosion resistance, antirust etc. Thus, zirconia balls are used in pumps, valves, ceramic bearings etc.Ceramic ball Size range0.4 mm up to 50 mm (2")Grades2C, 3C, 5C, 10C, 16C, 24C, 48C. PHYSICAL CHARACTERISTICS Corrosion resistanceExcellentWear resistanceYesMagneticNoElectric insulationYesRustNeverHigh temperature resistanceYes, over 750 ℃ APPLICATION Aerospace, National defense, Chemical industry, Bearings, Pumps, Valves etc..