Black Fused Alumina by Ningxia Huiheng Activated Carbon
White fused alumina is fused by alumina powder by electric arc furnace under high temperature. It has white color and little higher hardness and lower toughness comparing with brown fused alumina. The micro hard- ness of the product is 2200-2300kg/mm2. It has higher hardness and slight lower toughness comparing with brown fused alumina.