Aluminium Oxide, Boron Carbide and Silicon Carbide Powdered Abrasives

Aluminum Oxide Grinding Powders

Aluminum oxide grinding powders for fine grinding or rough polishing of petrographic specimens, soft metals and their alloys, and cross-sections of electronic devices. Softer than diamond or silicon carbide. Normally used in a slurry.

SDS (129KB PDF)

Grit Grading System and Hardness of Materials Charts

Boron Carbide Grinding Powders

In terms of hardness, Boron carbide (B4C) with a Mohs hardness of 9.5 is third only to diamond and so makes an excellent lower cost alternative to diamond for the precision grinding, lapping and polishing of most hard materials.

SDS (107KB PDF)

Silicon Carbide Grinding Powders

Silicon carbide grinding powders for fine grinding or rough polishing of semiconductors, ceramics and ferrous materials. Softer than diamond but harder than aluminum oxide. Normally used as a slurry.

#815-50, -76 SDS (120KB PDF)

#815-80 to 815-87-5 SDS (107KB PDF)