| peoject |
Clay steel brick JN-45 |
High cast steel brick JL-55 | High alumina lined brick CL-55 |
High Aluminum casting mouth, plug head brick L-55 |
unburned casting mouth, the stopper headBL-55 |
| Al2O3%≥ | 45 | 55 | 55 | 55 | 55 |
| apparent porosity ,%≤ | 18-22 | 18-24 | 21 | 21 | 15 |
|
bulk Density g/cm3 |
- | 2.25 | 2.3 | 2.35 | 2.45 |
|
℃ Refractory under load |
1350 | 1400 | 1400 | 1450 | 1530 |
| ℃refractoriness | 1730 | 1770 | 1790 | 1790 | 1790 |
