Black fused alumina is characterized by low Al2O3 and a certain amount of Fe2O3 (10% more or less) content, so it has characteristics of moderate hardness, high toughness, high temperature resistance, and stable thermal stability.

It is mainly suitable for free grinding, such as coarse grinding before electroplating products, mainly for polishing and sandblasting of stainless steel, fabricated metal products, optical glass, bamboo products, and it is also new abrasive for manufacturing resin grinding wheels, cut-off wheels and emery cloth. The black fused alumina of the company concentrated basic tablets, with the characteristics of strong cutting power, high toughness, high flexibility, good abrasion resistance and high working efficiency, which is the best product for grinding and polishing, sandblasting stainless steel products.

Al2O3 70%min

Fe2O3 12%max

SiO2 10%max

F4 F6 F8 F10 F12 F14 F16 F18 F20 F24 F30 F36 F46 F60 F80 F70 F100 F120 F150F180 F220 F240 F280 F320 F360 F400 F600 F500 F800 F1000 F1200