Purpose | Specification | Chemical composition(%) | Magnetic material content(%) | ||||
Al2O3 | Fe2O3 | SiO2 | TiO2 | ||||
For abrasive | F | 4#—80# | 95.0 Min | 0.3 Max | 1.5 Max | 3.0 Max | 0.04 Max |
90#—150# | 94.0 Min | 0.05 Max | |||||
180#—320# | 93.0 Min | 0.3 Max | 1.5 Max | 3.5 Max | 0.06 Max |
Physical Properties | |
Color | Dark Brown |
Crystal Form | Alpha-alumina trigonal system |
Hardness | 9.0 Mohs scale |
Melting Temperature | About 2050 ℃ |
Maximum Use Temperature | 1800℃ |
True Density(g/cm3) | ≥3.90 |
Magnetic Material | 0.01% |