Brown Aluminum Oxide (or aluminium oxide) is an extremely sharp, long-lasting blasting abrasive that can be recycled many times. It is the most. Widely used abrasive in blast finishing and surface preparation because of its cost, longevity...And hardness. Harder than other commonly used --blasting materials, aluminum...Oxide grit powder penetrates and cuts even thehardest -metals and sintered carbide.
Colour Brown Physical Nature Hard & Very tough Particle specific activity 3. 94 Melting point 2000oC Hardness MOH's Scale 9. 0