Artificial brown corundum is produced from lumps obtained from electric arc furnaces (Higgins) during controlled melting of bauxite and subsequent slow cooling. Brown corundum is characterized by extreme hardness and toughness. It is a blasting material that does not contain free iron.
Packaging:
In 25 kg bags or 1t / big bag
| FEPA | Average gain size | FEPA | Average gain size |
| F-8 | 2800-2000 | F-46 | 425-300 |
| F-10 | 2360-1700 | F-54 | 355-250 |
| F-12 | 2000-1400 | F-60 | 300-212 |
| F-14 | 1700-1180 | F-70 | 250-180 |
| F-16 | 1400-1000 | F-80 | 212-150 |
| F-20 | 1180-850 | F-90 | 180-125 |
| F-22 | 1000-710 | F-100 | 150-106 |
| F-24 | 850-600 | F-120 | 125-90 |
| F-30 | 710-500 | F-150 | 106-63 |
| F-36 | 600-425 | F-180 | 90-63 |
| F-40 | 500-355 | F-220 | 75-53 |
* Other grain sizes can be produced if required
| FEPA | Ds3 max. | Ds50 | Ds94 min. |
| F-240 | 70 | 44,5+/-2,0 | 28 |
| F-280 | 59 | 36,5+/-1,5 | 22 |
| F-320 | 49 | 29,2+/-1,5 | 16,5 |
| F-360 | 40 | 22,8+/-1,5 | 12 |
| F-400 | 32 | 17,3+/-1,0 | 8 |
| F-500 | 25 | 12,8+/-1,0 | 5 |
| F-600 | 19 | 9,3+/-1,0 | 3 |
| F-800 | 14 | 6,5+/-1,0 | 2 |
| F-1000 | 10 | 4,5+/-0,8 | 1 |
| F-1200 | 7 | 3,0+/-0,5 | 1 (80%) |
| F-1500 | 5 | 2,0+/-0,4 | 0,8 (80%) |
| F-2000 | 3,5 | 2,0+/-0,4 | 0,5 (80%) |
| Hardness | 9 Mohs |
| Melting point | 1950 ˚C |
| Bulk density* | 1,6 - 2,0 kg / dm3 |
| Grain shape | Angular |
* Depending on grain size.
| Al2O3 | 95,50% |
| TiO2 | 2,50% |
| SiO2 | 0,95% |
| Fe2O3 | 0,15% |
| MgO | 0,25% |
| CaO | 0,35% |
