WHITE ALUMINUM OXIDE Grinding Wheels also called White Alumina, White Corundum Grinding Wheels, WA grinding wheels. It is the most common grinding wheels.
White Aluminium Oxide is a highly refined form of aluminium oxide containing over 99 % pure alumina. The high purity of this abrasive not only bestows its characteristic white colour, but also lends it with its unique property of high friability. The hardness of this abrasive is however 2 similar to that of Brown Aluminium Oxide (1700 – 2000 kg/mm knoop). This white abrasive has exceptionally fast and cool cutting and grinding characteristics, especially suitable for grinding hardened or high speed steel in varied precision grinding operations.