White Abrasives Since 1968

Technical Details

Grit Size/Mircron Size Comparison Chart
Grit Size Predominant Grit Grit Size 50% Value
6 4.00 - 2.80mm 240 42.5 - 46.5micron
8 2.80 - 2.00mm    
10 2.36 - 1.70mm 280 35.0 - 38.0micron
12 2.00 - 1.40mm    
14 1.70 - 1.18mm 320 24.7 - 30.7micron
16 1.40 - 1.00mm    
20 1180 - 850micron 400 16.3 - 18.3micron
24 850 - 600micron    
36 600 - 425micron 500 11.8 - 13.8micron
46 425 - 300micron    
54 355 - 250micron 600 8.3 - 10.3micron
60 300 - 212micron    
70 250 - 180micron 800 .5 - 7.5micron
80 212 - 150micron    
100 150 - 106micron 1000 3.7 - 5.3micron
120 125 - 90micron    
150 106 - 63micron 1200 2.5 - 3.5micron
180 90 - 53micron    
220 75 - 45micron    

Determination by sedimentation according to German Industry Standard DIN 69 101
Determination by sieving with the Rotap
Test sieving machine according to the German Industry Standard DIN 69 101

Chemical Composition
  Brown Aluminium White Aluminium Silicon Carbide
Colour Dark Brown White Crystallin Black
Handness(Moh) 9 9 9 - 10
Bulk Density (Kg/m3) 2400 2400 1760
Particle S.G  3.92 3.92 3.2
AI2O3 95.00 99.30% -
Fe2O3 1.00% 0.04% 0.12%
TiO2 3.00% - -
SiO2 0.72% 0.07% 0.50%
CaO 0.30% 0.04 -
Na2O - 0.48% -
Crystalline SiC - - 98.10%
Free Si - - 0.25%
Free C - - 0.12%
Other Oxide - - 0.30%