Items/ Chemical Composition | Unit | Medium Chrome | Low Chrome | High Chrome | |
Size: F12-F80 | Al2O3 | % | 98.2min | 98.5min | 97.4min |
Cr2O3 | % | 0.45-1.00 | 0.20-0.45 | 1.00-2.00 | |
Na2O | % | 0.55max | 0.50max | 0.55max | |
F90-F150 | Al2O3 | % | 98.20min | 98.50min | 97.00min |
Cr2O3 | % | 0.45-1.00 | 0.20-0.45 | 1.00-2.00 | |
Na2O | % | 0.60max | 0.50max | 0.60max | |
F180-F220 | Al2O3 | % | 97.80min | 98.00min | 96.50min |
Cr2O3 | % | 0.45-1.00 | 0.20-0.45 | 1.00-2.00 | |
Na2O | % | 0.70max | 0.60max | 0.70max | |
Physical Property | Basic Minerals | α— AI2O3 | α— AI2O3 | α— AI2O3 | |
Crystal size | μm | 600~2000 | 600~2000 | 600~2000 | |
True density | g/cm3 | ≥3.90 | ≥3.90 | ≥3.90 | |
Bulk density | g/cm3 | 1.40~1.91 | 1.40~1.91 | 1.40~1.91 | |
Knoop hardness | g/mm2 | 2200~2300 | 2200~2300 | 2200~2300 |