Semi Friable Alumina - Macro Grit

Semi friable alumina can be used in depressed center wheels, cut off Wheels, in surface and cylindrical Grinding of heat sensitive metals, alloys etc.

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Semi-Friable Alumina is a low titania containing brown corundum produced by controlled smelting of special grade Bauxite in an electric arc furnace above 2000 deg C. The lower titania gives an intermediate toughness between that of White and Brown Regular corundum and strict control of this parameter over a narrow band ensures consistent quality.The cooled crude is further crushed, cleaned of magnetic impurities in high intensity magnetic separators and classified into narrow size fractions. The grains are further annealed at intermediate temperatures in a specially designed kiln to build predictable toughness characteristics.