Brick cup for ladle nozzle
| Index/Brand | Corundum spinel | Aluminospinel | Electron body cast chrome/corundum spinel | Pressed aluminum magnesium carbon |
|---|---|---|---|---|
| Al2O3(%) | ≥90 | ≥85 | ≥80 | 70-85 |
| MgO(%) | ≥4 | ≥4 | 4-10 | 5-20 |
| Cr2O3(%) | 2-4 | 2-4 | ||
| Bulk density(g/cm³) | ≥3.10 | ≥3.10 | ≥3.15 | ≥3.05 |
| Apparent porosity(%) | ≤17 | ≤17 | ≤18 | ≤8 |
| Compressive strength(MPa) | ≥60 | ≥80 | ≥90 | ≥50 |
|
Linear change rate (%)1450℃×3h |
0-0.5 | 0-0.5 | 1.2±0.2 |
