| Item | Al2O3 bubble brick | |
| ABB-88 | ABB-98 | |
| Max. service temp. | 1650 | 1800 |
| Al2O3,% | 88 | 98 |
| SiO2,% | -- | 0.3 |
| Fe2O3,% | 0.5 | 0.2 |
| Bulk density,g/cm3 | 1.35-1.8 | 1.40-1.8 |
| CCS,MPa | 8 | 10 |
| Refractoriness under load,℃(0.2MPa,0.6%) | 1650 | 1700 |
| Reheating linear change,%,(1600℃×3h) | ±0.3 | ±0.3 |
| Thermal cinductivity,w/(m·k),(average 800℃) | 0.9 | 1.0 |