Brown fused alumina (A)

It is made by fusing bauxite in an electric arc furnace under high temperature.

Feature: Good amount of toughness, hardness and self-sharpening. Great entry price. 

Zirconia Alumina (ZA)

It is made by fusing alumina and zirconia with electric arc furnace under high temperature.

Feature: Highly wear resistant, very durable, self-sharpening, outperform brown fused alumina.

Application: General metal, stainless steel. 

Black Silicon Carbide (C)

Black silicon carbide uses silica sand andpetroleum coke as raw material. The mixture is synthesized with Acheson process.

Hardness: Lower than diamond, higher than brown fused alumina.

Feature: Sharp, high hardness, brittle.

Application: Non-ferrous metal, non-metal material, masonry, cement, wood.