White Fused Alumina Micropowder is white and harder and more brittle than A. It features strong cutting force,steady chemical property and excellent insulation.Its knoop hardness is 2200-2300kg/mm2. It can be used for making bonded and coated abrasive tools,wet or dry blasting. It is also suitable for super precision grinding and making high quality refractory material,such as chilled steel,alloy steel,high-speed and high carbon steel.Meanwhile,it can be used as catalyst.