Features: This castable is a high-tech product developed according to the closest packing principle, solid fluid theory and fluid theory, combined with the application characteristics of refractory. The product can be degassed and leveled by its own gravity, thus achieving densification. . Suitable for the characteristics of the tundish protective layer, it can be mechanized construction.
Physical and chemical indicators:
Item | Brand | |||
TNTLC-1 | TNTLC-2 | TNTLC-3 | ||
chemical composition,%≥ | Al2O3 | 48 | 53 | 55 |
CaO | 2.5 | 2.5 | 2.5 | |
Bulk density,g/cm3≥ | 1.95 | 2.10 | 2.20 | |
Compressive strength,MPa≥ | 110℃ | 25 | 25 | 30 |
1350℃ | 30 | 35 | 40 | |
Line change after burning,%≥ | 1350℃ | -0.2 - +0.3 | -0.2 - +0.4 | -0.1 - +0.4 |