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Calcined Bauxite Powder (ABRASIVE GRADE)
Calcined Bauxite is the principal ore of Aluminum, composed mainly of hydrous aluminum oxides and aluminum hydroxides. These minerals are Gibb site, Boehmite and diaspore. Bauxite is formed through lateralization of aluminous rocks. This bauxite is heated at a very high temperature to get Calcined bauxite.
| AL2O3 | 78% TO 80% | 80% TO 82% | 82% TO 84% |
| SIO2 | 5% TO 7% | 4% TO 6% | 4% TO 6% |
| TIO2 | 4% TO 5% | 4% TO 5% | 4% TO 5% |
| FE203 | 5% TO 7% | 4% TO 6% | 4% MAX |
| LOI AT 1000 DEG | 0.50% TO 1% | 0.50% TO 1% | 0.50% |
| BD | 2.7% TO 2.8% | 2.80% | 2.80% |
Refractory grade bauxites (RGBs)
Refractory grade bauxites (RGBs) are high-alumina materials used as aggregates in shaped and unshaped refractory linings suitable to withstand high temperature heating and a corrosive enviroment.
| AL2O3 | 78% TO 80% | 80% TO 82% | 82% TO 84% |
| FE203 | 5% TO 7% | 3% TO 5% | 2% TO 4% |
| LOI | 1.00 | 0.50% | 0.50% |
| BD | 3.1 TO 3.2 |
HFST Bauxite
Calcined bauxite has traditionally been the most commonly used aggregate material used for High Friction Surfacing.
| AL2O3 | 85% TO 88% | ||
| SIO2 | 4 TO 6 | ||
| TIO2 | 4 TO 5 | ||
| FE203 | 3 TO 5 | ||
| LOI | 0.5 | ||
| BD | 3.1 TO 3.2 |