Brown Fused Alumina is a tough, sharp abrasives which is highly suitable for grinding metals of high tensile strength. Its thermal properties make it an excellent material for use in the manufacture of refractory products. This material is also used in other applications like blasting and surface hardening. | Grade | Specification | Chemical Composition(F46) | ||||
| Al2O3 | SiO2 | Fe2O3 | TiO2 | CaO | ||
| Brick Grade * | 0-1,1-3,3-5mm-8+16,-16+30,-30+60mesh,Fines | ≥95.2 | ≤1.0 | ≤0.3 | ≤3.0 | ≤0.4 |
| Castable Grade | 0-1,1-3,3-5mm-8+16,-16+30,-30+60mesh,Fines | ≥95 | ≤1.5 | ≤0.3 | ≤3.0 | ≤0.4 |
| Vitrified Grade | F12-F220 | ≥95.5 | ≤1.0 | ≤0.3 | 2.2-3.0 | ≤0.4 |
| Resin &Blasting Grade | F12-F220 | ≥95 | ≤1.5 | ≤0.3 | ≤3.0 | ≤0.4 |
| Micro Grade | P240-P1200 | ≥92-95 | ≤1.0-1.8 | ≤0.3-0.5 | ≤2.2-4.5 | - |
| F240-F1000 | ≥88-95 | ≤1.0-2.5 | ≤0.3-0.5 | ≤2.2-6.5 | - | |
| Melting point | 2050℃ | |||||
| Refractoriness | 1980℃ | |||||
| True density | 3.90ming/cm3 | |||||
| Mohs hardness | 9.00min | |||||
| Items | Size | Chemical Composition (%) | ||||
| Al2O3 | TiO2 | CaO | SiO2 | Fe2O3 | ||
| A和A-P1 | F4～F80 P12～P80 | 95.00～97.50 | 1.70～3.40 | ≤0.42 | ≤1.00 | ≤0.30 |
| F90～F150 P100～P150 | 94.50～97.00 | |||||
| F180～F220 P180～P220 | 94.00～97.00 | 1.70～3.60 | ≤0.45 | ≤1.00 | ≤0.30 | |
| F230～F800 (P240～P800） | ≥93.50 | 1.70～3.80 | ≤0.45 | ≤1.20 | ≤0.30 | |
| F1000～F1200 (P1000～P1200） | ≥93.00 | ≤4.00 | ≤0.50 | ≤1.40 | ≤0.30 | |
| P1500～P2500 | ≥92.50 | ≤4.20 | ≤0.55 | ≤1.60 | ≤0.30 | |
| A-B和A-P2 | F4～F80 P12～P80 | ≥94.00 | 1.50～3.80 | ≤0.45 | ≤1.20 | ≤0.30 |
| F90～F220 P100～P220 | ≥93.00 | 1.50～4.00 | ≤0.50 | ≤1.40 | - | |
| F230～F800 (P240～P800) | ≥92.50 | ≤4.20 | ≤0.60 | ≤1.60 | - | |
| F1000～F1200 (P1000～P1200） | ≥92.00 | ≤4.20 | ≤0.60 | ≤1.80 | - | |
| P1500～P2500 | ≥92.00 | ≤4.50 | ≤0.60 | ≤2.00 | - | |
| A-S | 16～220 | ≥93.00 | - | - | - | - |
