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| Refractory Bricks-High Alumina Bricks For Electric Arc Furnace Roofs |
| High Alumina Bricks For Electric Arc Furnace Roofs |
Technical Data
| Item | DL-80 | DL-75 | BDL-80 | BDL-75 |
| Al2O3 %≥ | 80 | 75 | 80 | 75 |
| Apparent porosity % | 19 | 19 | 18 | 18 |
| Cold crush strength Mpa ≥ | 75 | 65 | 60 | 55 |
| Linear change after reheating(P.L.C)% (1500℃×2h) | 0-0.3 | 0-0.3 | ±0.2 | ±0.2 |
| Thermal shock resistance(1100℃,water)cycles > | 8 | 8 | 8 | 8 |