Brown fused alumina is made from high quality bauxite by fusing in the electric arc furnace at high temperature. It has good toughness and high hardness. It is suitable for manufacturing of vitrified and resin bonded tools, and for lapping, polishing, and sand blasting and sand cleaning.
| Physical Properties | |
| Color: | Dark Brown |
| Bulk Density: | 1.21- 1.85 g/cm . |
| Specific Gravity: | 3.9 |
| Grain Shape: | Angular/sharp |
| Hardness: | 9 Mohs |
| Chemical Composition (% by weight) | |||||
| Grit Item | 10 – 90 | 100 – 180 | 220 – 220 | 230-400 | 500- 1200 |
| Al2O3 | 94.5 – 97.0 | 93.5 min | 92.5 min | 91.0 min | 89.0 min |
| TiO2 | 1.5 – 3.8 | 1.5 – 3.8 | 1.5 – 3.8 | 4.0 max | 4.0 max |
Available Sizes
| Grit
No. |
Micron | Grit
No. |
Micron | Grit
No. |
Micron | Grit
No. |
Micron |
| 12 | 2000 ~ 1700 | 24 | 850 ~ 710 | 54 | 355 ~ 300 | 100 | 150 ~ 125 |
| 14 | 1700 ~ 1400 | 30 | 710 ~ 600 | 60 | 300 ~ 250 | 120 | 125 ~ 106 |
| 16 | 1400 ~ 1180 | 36 | 600 ~ 500 | 70 | 250 ~ 212 | 150 | 106 ~ 75 |
| 20 | 1180 ~ 1000 | 40 | 500 ~ 425 | 80 | 212 ~ 180 | 180 | 90 ~ 63 |
| 22 | 1000 ~ 850 | 46 | 425 ~ 355 | 90 | 180 ~ 150 | 220 | 75~53 |
| Other sizes can be also available upon request. | |||||||
Packing:
25 kgs or 50kgs packed in three layers bag, or can be packed on request
