... a kind of fused Zirconia Alumina abrasive FEPA “P” grit, it is got by fusing zirconia sand ... “+ “Al2O3-ZrO2” combined tree systemTrue Density 4.55 gms/ccMelting Temperature About 1950 oCHardness 1450 Knoop 100 ... scaleMagnetic Material 0.0076% Macrogrit Sizes Available (P):12, 16, 20, 24, 30, 36, 40, ... Key words:zirconia fused alumina FEPA"P" GRIT,zirconia aluminium oxide, zirconia abrasive material, ...