Grinding, blasting, and cutting processes, as well as the production of refractory materials, all employ alumina. We are proud to be the world's largest fused alumina producer and supplier. It is also known as fused aluminium oxide Alumina is found in the regions of Odisha, West Bengal, Kerala, Uttar Pradesh, Maharashtra and Tamil Nadu. There are several physical properties of alumina. It is high in hardness with the value of 9 on Mohs scale. It has sharp-edged grains, a high load bearing capacity, strong shock resistance, and thermal and chemical stability, besides their superior hardness. Alumina, or aluminium oxide (aluminum oxide), is better known in the mineral world as corundum with the chemical formula Al2O3 Alumina has widespread usage in several industries in refractories, sandblasting and abrasives to mention a few. Grinding, machining, blasting, cutting, and the manufacturing of shaped and unshaped refractory materials all employ fused aluminium oxide grits. We offer innovative, brilliant quality alumina mineral with both macro and micro sized that could be used for a wide range of applications. We can add refining procedures to our regular production of alumina mineral to suit the bespoke requirements of various industries and application domains. These various industries are ceramics, sand casting, tiles, enamels, laminates & paints, industrial coatings, abrasives, blasting, concrete & resin components, refractories, insulators and heat conductive to name a few.
Introduction White Fused Alumina (WFA) is made from Calcined Alumina and is a friable product. Like Brown Fused Alumina, WFA is used in the manufacturing of grinding wheels (both vitrified and resin bonded) and coated products. These grains are also used for shot blasting purpose and as polishing media and refractory grade WFA is used as raw material for high alumina refractories Application White fused alumina is mainly used for grinding high carbon steel, high-speed steel and chilled steel. It can also be used as lapping and polishing medium, precision founding sand and coating materials, catalyst carrier, special ceramics and super refractory material.
White fused alumina Chemical composition: Al2o3 99%min Fe2o3 0.1%max Sio2 0.1%max Na2o 0.4%max Size:0-1, 1-3, 3-5mm;f4,f220 A.40*25kg/bag packed in big bag B.1mt/bag, 1.2mt/bag, 1.25mt/bag
We are supplier and exporter of Calcined Alumina. Calcined alumina can be used in the polishing of different alumina products(mainly used in middle, fine polishing).It is also widely used in high-class aluminium refractory material, unshaped refractory materials, high aluminium ceramic product and advanced coating, etc, . Item Al2o3 % Na2o % Sio2 % Fe2o3 % D50 A4m 99.8 0.1 0.05 0.02 3.1 Alumina (Al2O3), the industrial Al2O3 is prepared from alumina (Al2O3, 3H2O) and hard alumina, and the Al2O3, which is high in purity, is usually prepared by chemical methods. Al2O3 has many isomorphic crystals, and there are currently more than 10 known types, mainly three types of crystal, namely gamma-al2o3, beta-al2o3, alpha-al2o3.Which structure is different, with different properties in high temperature above 1300 s almost entirely into alpha Al2O3.
White fused alumina for refractories White fused alumina is made from redused fusion of high purity alumina powder whose content is aluminium oxide(al2o3). It has very high refractory temperature, acid and alkali corrosion resistant, stable in chemical content, high true gravity/density, low porosity rate, thermal shock resistant. It's an excellent corundum aluminium oxide refractory material. White fused alumina refractory grades is an important high end material for production of shaped and unshaped refractory products. Physical and chemical properties True gravty: ?3.60 g /cm3 Bulk density: 1.5-2 g / cm3 Mosh hardness: 10 Color: white, light blue after heat treatment Melting point: 2350 celcius degree Linear expansion coefficient index: (7-9)*10^-6/k (0 - 1600) Sizes available: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 100mesh, 200mesh, 325mesh Applications of white fused alumina refractory grades Alumina bricks, alumina type refractory brick mullite box body, nozzle, spray gun, furnace and oven linear Unshaped refractory materials like ladle pouring material, drainage sand, spraying and filling material, prefabricated parts Refractory materials in steel making, metallurgical, cement, glass, ceramic, petrochemical industries Precision casting and foundry sand
brown fused alumina is fused and crystallized under high temperature from a mixture of bauxite and other and other raw materials. It is characterized by its high hardness,good toughness and shape in size. Abrasives tools made of it are suitable for grinding metals of high-tensile strength such as: carbon steel,general-purpose alloy steel,annealed malleable iron and hard broze,etc.It also can be used as refractory materials Applications: Brown fused alumina for coated and bonded abrasive tools Brown aluminum oxide for lapping and polishing processes Brown fused alumina for sandblasting Brown aluminum oxide for producing mold of precision casting Brow fused alumina as refractory materials
Aluminum oxide Alumina powder for Electric vacuum tube shell ceramic Al2O3 item value Classification ALUMINA CAS No. 1344-28-1 Other Names Alumina MF Al2O3 EINECS No. 215-691-6 Grade Standard Electron Grade, Industrial Grade, Reagent Grade Purity 99.5% Appearance White powder Application electronic ceramics Color White Grade Industrail Grade Density 3.5 g/cm3 Melting point 2054 Boiling Point 2980 Molecular Weight 101.96 Shape Ionische Water Solubility Hard Packing 25 Kg Pp Bag or plastic barrel Sample Availiable
White alumina oxide powder White alumina oxide powder is electrically fused at high temperature. Our white alumina oxide powder has the features of stable quality, well-distributed particle size composition, low magnetic substance content, high bulk density and hardness, good toughness, and high cleanliness, etc. It has been exported to more than 20 countries in Europe, America, Southeast Asia, etc.
Smelter Grade Alumina
