白色的融合Alumina

White Fused Alumina White Fused Alumina ( WFA OR WA) is made from chemical by high furnace or tilting furnace at high temperature . it is very important raw material for advanced refractory and abrasives. Its properties are as following : Property Size 0-1 1-2 3-5mm Fine (mesh) 0-180 0-320 Spec Typical Value Spec Typical Vlalue a-Al2O3 99%Min 99.5% 99%Min 99.2% SiO2 0.2%Max 0.08% 0.2%Max 0.12% Fe2O3 0.2%Max 0.01% 0.25%Max 0.05% Na2O 0.4%Max 0.23% 0.4%Max 0.30% Principal crystalline Phase a-Al2O3 Crystal systerm Hexzagon Color White True density 3.95Min Bulk density 1.75-1.95 Mohs hardness 9 Size (mm) 85 53 31 10 Fine(Mesh) -80,-120,-240,-320