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| Refractories Castables For Metallurgical Industry-Castables Refractories For Ladles |
| Castables Refractories For Ladles |
Technical Data
| Brand | AM-70 | MA-30 | LL-90 | PM-88 | PM-95 | ZL-75 | ZL-90 | |
| Max service temperature(℃) | - | - | - | 1750 | 1750 | 1550 | 1650 | |
| Chemical composition(%) | Al2O3 | 70 | 30 | 90 | - | - | ≥75 | ≥90 |
| MgO | ≥12 | ≥60 | ≥7 | ≥88 | ≥95 | - | - | |
| CaO | ≤ 1.5 | - | ≤ 1.0 | 2-3 | 0-2.0 | ≤ 1.2 | ≤ 1.0 | |
| Fe2O3 | - | - | - | 0-3 | 0-3 | - | - | |
| Bulk density(g/cm3) | 110℃×24h | 2.8 | 2.85 | 3.0 | ≥2.82 | ≥2.8 | ≥2.75 | ≥3.0 |
| 1500℃×3h | 2.70 | 2.75 | 2.85 | ≥2.82 | ≥2.8 | ≥2.62 | ≥2.9 | |
| Cold crush strength(Mpa) | 110℃×24h | 40 | 30 | 25 | ≥4.0 | ≥5.4 | ≥35 | ≥30 |
| 1000℃×3h | 50 | 45 | 45 | - | - | - | - | |
| 1500℃×3h | 80 | 60 | 90 | ≥40 | ≥54 | ≥90 | ≥110 | |
| Modulus of rupture( Mpa) | 110℃×24h | 4.5 | 4 | 3 | ≥2.0 | ≥1.9 | ≥4.0 | ≥3.5 |
| 1000℃×3h | 6 | 5 | 5 | - | - | - | - | |
| 1500℃×3h | 9 | 7 | 10 | ≥8.0 | ≥8.2 | ≥9.5 | ≥12 | |
| permanent linear change (%) | 1500℃×3h | 0.3-1.2 | 0.3-1.2 | 0-0.6 | 0~-1.4 | 0~-0.6 | +0.1~-0.3 | +0.1~-0.3 |
| water required (%) | 5-6 | 5-6 | 5-6 | 6-9 | 6-9 | 6-7 | 5-6 | |
| self-flow value | - | - | - | - | - | 180 | 190 | |
| main use | working lining and bottom of middle or small ladle | slag line of middle of small lade | working lining and bottom of big ladle | hot gunning mixes for slag line.gate and slope of EAF and converter. | repairing slag line of big or middle ladle and tundish | degassing mildly without vibrating,forming easily,excellent thermal shock resistance. | ||
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