China Good Quality Pink Aluminum Oxide Corundum Fused Alumina

Good Quality Pink Aluminum Oxide Corundum Fused Alumina (PA) with Factory Price
Pink Fused Alumina ( PA ) is produced by bayer alumina and right quantity oxidized chromium in an electric arc furnace at high temperatures. Compared with white aluminium oxide, the product shows similar hardness and lower toughness. The abrasive tools which made of PA have excellent durability and high processing cleanness. The materials are used to grind measuring and cutting tools, instruments, threading workpieces, etc. which demand low roughness on the surface.

Physical CharacteristicsItemBasic mineralCrystal systemCrystal colorMohs
hardnessDensityPink aluminium oxideα- Al2O3HexagonalPink9≥3.90g/cm3ItemMicro hardnessElectrical
resistivityGrinding ability(compared with
diamond as one)Linear expansion
coefficient(when 900ºC α•10-6k-1)Pink aluminium oxideHV2200-23001014-1016Ω•cm0.128.3

Chemical CompositionGritLow chromiumMedium chromiumHigh chromiumAl2O3Cr2O3Na2OAl2O3Cr2O3Na2OAl2O3Cr2O3Na2OF12-F80≥98.500.20-0.45≤0.50≥98.200.45-1.00≤0.55≥97.401.00-2.00≤0.50F90-F150≥98.50≤0.55≥98.20≤0.60≥97.00≤0.60F180-F220≥98.00≤0.60≥97.80≤0.70≥96.50≤0.70

Note: Special requirements on chemical composition and other terms can be satisfied through discussion.