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| Refractories Castables For Metallurgical Industry-Castables Refractories For Trough In Blast Furnace |
| Castables Refractories For Trough In Blast Furnace |
Technical Data
| Item | MT-TC | MT-M | MT-SA | MT-TZ | MT-TP | JLT-1 | JLT-2 | |
| Chemical composition | Al2O3 %≥ | 75 | 68 | 60 | 65 | 70 | 68 | 72 |
| Sic+C %≥ | 18 | 15 | 12 | 14 | 15 | 15 | 15 | |
| Bulk density(g/cm3) | 110℃×24h | 2.88 | 2.75 | 2.70 | 2.75 | 2.65 | 2.80 | 2.85 |
| 1450℃×3h | 2.80 | 2.70 | 2.60 | 2.65 | 2.60 | 2.70 | 2.75 | |
| Cold crush strength Mpa ≥ | 110℃×24h | 30 | 30 | 25 | 30 | 30 | 20 | 20 |
| 1450℃×3h | 65 | 50 | 50 | 60 | 50 | 45 | 50 | |
| Modulus of rupture Mpa ≥ | 110℃×24h | 4.0 | 4.0 | 4.0 | 5.0 | 8.0 | 3.5 | 3.5 |
| 1450℃×3h | 7.0 | 6.0 | 6.0 | 8.0 | 12.0 | 6.0 | 7.0 | |
| permanent linear change % | 1450℃×3h | ±0.3 | ±0.3 | ±0.3 | ±0.3 | ±0.3 | ±0.5 | ±0.5 |
| Water required % | 4.5-5.0 | 4.5-5.2 | 5,0-5,5 | 5.0-5.5 | - | 5.5-6.5 | 5.5-6.5 | |
| Self-flowing % | - | - | - | - | - | 80-130 | 70-120 | |
| main use | the iron trough for the large blast furnace | the iron trough for the middle and samll blast furnace | branch iron trough | branch slag trough | skimmer | construction quickly at high temperature | ||
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