... 5 Ture density 3.9 White aluminium oxide/white fused alumina(WA)Al2O3 99.53%...........NaO 0.3%.........Fe2O3 0.1%......... Magnetic ... 3000#,4000#Refractory grade:1-0mm,3-1mm,5-3mm,5-8mm -200mesh,-240mesh,-320mesh PurposeSpecificationChemical Composition(%)Magnetic material content(%)maxAbrasives gradeAl2O3minFe2O3maxSiO2maxTiO2maxgrain12- ... with us.. Refractory White Fused Alumina 1-0mm.3-1mm.5-3mm