Calcined alumina is produced through the calcination (“heating”) of alumina to various temperatures. Combined with state of the art process control equipment we are able to produce a range of high alpha alumina grades with controlled soda chemistry, surface area and partied size distributions.
It has high hardness and compression strength, wear-resistance, chemical inertness, high degree of refractoriness and melting point, superior electrical insulating properties, resistance to thermal shock, dielectric Properties.
|Index||Al2O3≥ %||Fe2O3≤ %||Na2O≤ %||SiO2≤ %||Ture Density≥ g/cm3||L.O.I.≤ %||Primary crystal size μm|
325mesh, 500mesh, 800mesh, 5μm, 3μm, 2μm, 1μm Other specifications are also available on request
It can be used for the unshaped refractories (all kinds of high aluminium castables) and shaped refractories (corundum bricks), monolithics and pre-case shapes used in foundry, iron and steel making.