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Alumina Oxide Ceramic Balls Ceramic balls are particularly well suited for use in extremely harsh environments where high temperatures, corrosive and erosive substances are present. Standard 99.5% alumina oxide ceramic balls have proven performance in wear, heat and corrosive environments, as well as, in maintaining dimensional stability at temperatures up to 20000 F. Alumina resists oxidation and is tolerant to water, salt solutions, and many chemicals and acids, but is not suitable for use in hydrochloric or hydrofluoric acids or strong alkaline solutions. Typical applications include pumps, valves and flow meters. Alumina Oxide Ceramic Balls:   Click here for sizes and pricing   Grade Size Range in Inches and Millimeters C10* 1/8 - 1                    3.175 - 25.400 C24* 1/8 - 1                    3.175 - 25.400 48 1/8 - 2                    3.175 - 50.800 100 1/8 - 4                    3.175 - 101.600 200 1/8 - 6                    3.175 - 152.400 Alumina Oxide - *Alumina Oxide is specified as grade C10 and C24 which is equal to grade 10 and 24, except surface finish is less then or equal to 3Ra. Balls per Pound Size Balls per Pound Inches Millimeters 1/8 3.175 6896.55 5/32 3.968 3558.72 3/16 4.762 2061.86 7/32 5.556 1297.02 1/4 6.350 870.32 9/32 7.143 610.50 5/16 7.937 445.43 3/8 9.525 257.20 13/32 10.318 203.17 7/16 11.112 166.11 1/2 12.700 108.62 5/8 15.875 56.39 3/4 19.050 33.01 1 25.400 13.85 Material Analysis Property/Material.......................................................................... Alumina Oxide - 99.5% pure Chemistry (wt%)............................................................................. 99.5% Al2O3 - .5% Other Hardness kg/mm3....................................................................... 1700 Hv Density (gm/cc).............................................................................. 3.87 Transverse Rupture Strength (psi)............................................... 45,000 Ultimate Compressive Strength (psi).......................................... >330,000 Ultimate Tensile Strength (psi)..................................................... 31,000 Modulus of Elasticity (psi)............................................................. 53 x 106 Maximum Work Temperature....................................................... 14000C Fracture Toughness (K1C) kg/mm1.5........................................... 13.5 © copyright 2005 Hoover Precision Products, Inc., All Rights Reserved - Alumina Oxide Ceramic Balls Click Here for Ball Terms and Definitions (Grades Available and Tolerances) Click here to Order Online Stock Part # Grade # Diameter Pkg Qty.  Price/Pkg KB-1231 C24 0.125 Per 50  $61.00 KB-1232 C24 0.156 Per 50  $65.00 KB-1233 C24 0.187 Per 50  $69.00 KB-1234 C24 0.218 Per 50  $72.00 KB-1235 C24 0.250 Per 50  $76.00 KB-1236 C24 0.281 Per 50  $79.00 KB-1237 C24 0.312 Per 50  $83.00 KB-1238 C24 0.375 Per 25  $62.00 KB-1239 C24 0.437 Per 25  $83.00 KB-1240 C24 0.500 Per 25  $85.50 KB-1241 C24 0.625 Per 5  $86.30 KB-1242 C24 0.750 Per 5  $95.00 KB-1242 C24 1.000 Per 5  $128.00

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