| Gunning Material for Tundish | |||
| Specification | Chemical composition（%） | ||
| MgO | CaO | SiO₂ | |
| ≥ 80 | ≤ 2 | ≤ 8 | |
| Size (mm) | 0-3 | 0-3 | 0-3 |
| Bulk Density (g/cm³) 110 ℃ * 24h | ≤ 2.5 | ≤ 2.5 | ≤ 2.5 |
| Cold Crushing Strength (MPa) 110 ℃ * 24h 1550 ℃ * 2h | ≥ 8 | ≥ 8 | ≥ 8 |
| Linear Change after Burning (%) 1550 ℃ * 2h | -3 | -3 | -3 |
| Gunning Mix | ||||
| Type | Chemical composition（%） | |||
| MgO≥ | CaO≥ | C | SiO₂≥ | |
| Patching Mix for Tapping Hole | 85 | 6 | 8 | 3 |
| Stuffing Material for Tapping Hole | 36 | ≥ 5 | 30 |
| Gunning Mix for Electric Furnace | ||
| Chemical composition（ % ） | SiO₂≤ | MgO≥ |
| 5.50 | 83 |
| Ferroalloy Ramming Mass | ||||||
| Chemical composition（ % ） | MgO ≥ | CaO | Fe₂O₃ | Al₂O₃ ≤ | SiO₂ ≤ | IL ≥ |
| 85 | 6-8 | 4-6 | 0.5 | 1.2 | 0.5 |
| Gunning Mix for Converter | ||
| Chemical Composition（ % ） | MgO ≥ | 82 |
| SiO₂ ≤ | 5.5 |
| Large Area Patching Mix for Converter | |||
| Specification | Chemical Composition（ % ） | 82 | |
| MgO | SiO₂ | C | |
| ≥ 73 | ≤ 2 | ≥ 8 | |
| Size (mm) | 0-10 | ||
| Bulk Density（g/cm³）800 ℃ | ≥ 2.3 | ||
| Compression Strength（ MPa ）after Heat Treatment 800 ℃ | ≥ 10 | 5.5 |