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| Refractories Castables For Metallurgical Industry-Functional Refractory For Tundish |
| Functional Refractory For Tundish |
Technical Data
| Brand | MB-80F | MB-DA | MB-DM | MB-WM | MB-WA | |
| Material-based | High alumina | High alumina | Magnessia | Magnessia | High alumina | |
| Chemical composition(%) | Al2O3 | 80 | 85 | - | - | 85 |
| MgO | - | - | 88 | 88 | - | |
| CaO | - | - | - | - | - | |
| Bulk density(g/cm3) | 110℃×24h | 2.95 | 2.8 | 2.65 | 2.52 | 2.8 |
| 1550℃×3h | 2.85 | 2.75 | 2.6 | ≥2.4 | 2.75 | |
| Cold crush strength(Mpa) | 110℃×24h | 50 | 40 | 40 | 55 | 100 |
| 1550℃×3h | 90 | 75 | 60 | 55 | 100 | |
| Modulus of rupture( Mpa) | 110℃×24h | 8 | 8 | 7 | 7 | 7 |
| 1550℃×3h | 15 | 13 | 10 | 10 | 18 | |
| permanent linear change (%) | 1550℃×3h | ±0.4 | ±0.3 | 0~+1.5 | ±0.5 | ±0.3 |
| main use | the impact pad for the tundish | the slag dam for the tundish | the regulator to keep pouring for tundish | |||
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