Applications: FHD-1 and FHD-2 are used for over 10T ultra-high power electric furnace covers. FHD-3 is used for ordinary electric furnace cover below 10T
Features: High thermal strength, can withstand frequent quenching and rapid heat.
Physical and chemical indicators:
Brand | Material | Bulk density (g/cm3) | Chemical composition (%)≥ | Compressive strength (MPa)≥ | Flexural strength (MPa)≥ | Line rate of change (%) | |||
Al2O3 | Cr2O3 | 100℃ | 1500℃ | 100℃ | 1500℃ | 1500℃ | |||
FHD-1 | Corundum | 3.1 | 95 | - | 50 | 100 | 8 | 12 | 0~+0.7 |
FHD-2 | Chrome corundum | 3.1 | 85 | 4 | 80 | 100 | 10 | 12 | 0~+0.6 |
FHD-3 | High aluminum | 3.1 | 80 | - | 40 | 100 | 7 | 10 | ±0.5 |
