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The long nozzle is a refractory material connecting the ladle and the tundish. When molten steel is poured from the ladle through the long nozzle into the tundish, it can prevent the molten steel from oxidizing and splashing. The main functions of Changshuikou are as follows:
| Al2O3 | ≥45 |
| C+SiC | ≥25 |
| Bulk Density(g/cm3): | ≥2.40 |
| parent porosity
(%) : |
≤18 |
| Cold crushing strength(Mpa): | ≥20 |
| cold bending strength | ≥5 |
| Thermal Shock Resistance (1100℃) | ≥5 |
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