brown fused alumina

Brown fused aluminium Specs: AI2O3: 95% min SiO2: 1.0% max Fe2O3; 0.2% max TiO2: 3% max Moisture: 0.5% max Size: F10-F280 Specs: AI2O3: 95% min SiO2: 1.2% max Fe2O3: 0.3% max TiO2: 3% max Size:0-1mm, 1-3mm, 3-5mm, 5-10mm 90% min Black Fused Alumina has the following advantage: high hardness, strong tenacity, good self-sharpening, better cohesiseness, higher durability, less heat generated in grind-ing and giving the metal works high finish, less power weak-ened in grinding. It is mostly used in grinding and polishing stainless steel, metal works, optical glass, bamboo or articles. Specification:Size Scope Chemical content Al2O3min Fe2O3 max SiO2 max TiO2 10#to240# 78% 5% 9% 1.5-3.5% Finer than 240# 66% 5% 10% 1.5-3.0%