Brown aluminum oxide is electrically fused in an arc furnace from a mixture of bauxite at high temperature. It has brown color, high hardness and great toughness. The abrasive tools made of brown aluminum oxide are suitable for grinding carbon steel, normal alloy steel, malleable cast iron and hard bronze.It used for refractory aluminum oxide lining mixture, pouring materials castable,etc.
Core Advantages
- High hardness (Mohs 9), sharp angular grain — strong cutting & cleaning power
- High toughness, low breakage, reusable many times
- Low dust, no free silica, eco-friendly & safe
- Low iron contamination, no rust residue on steel/stainless surface
- Uniform grit size, consistent blasting roughness
Main Blasting Applications
- Steel structure, steel plate, pipe rust & scale removal
- Casting, forging deburring & descaling
- Stainless steel, aluminum profile surface pretreatment before painting/coating
- Ship hull, container anti-corrosion blasting
- Metal surface matting, texturing & roughness adjustment
Common Grit Sizes
- Coarse (#8–#24): Heavy rust, thick oxide layer, large steel structure
- Medium (#30–#60): General metal descaling, painting pretreatment
- Fine (#80+): Precision parts, fine matting, low surface roughness
Blasting Features
- Surface roughness controllable
- Less embedment into metal surface than quartz sand
- Longer service life than garnet, cheaper price
- Suitable for dry blasting & cabinet blasting