Tundish nozzles direct the flow and maintain the supply of molten steel into the copper moulds in the continuous casting of steel and are mounted on the bottom of the tundishes.
A smooth, controlled even flow of the molten steel through the nozzle into the billet moulds helps to assure homogeneity of the steel and higher quality steel billets and blooms.
Tundish nozzles are supplied in various shapes and sizes with different chemical compositions and physical properties.
Tundish Nozzles with Zirconia (Mg)/(Ca)/(Hf) Nozzles
| Description | ZN-96 | ZN-95 | ZN-95 |
| Typical Chemical Analysis (%) | |||
| ZrO2+HFO2 | 96.0 | 95.5 | 95.0 |
| MgO | 2.0 | 2.5 | 3.0 |
| SiO2 | 0.3 | 0.5 | 0.5 |
| TiO2 | 0.1 | 0.1 | 0.1 |
| Al2O3 | 0.1 | 0.1 | 0.1 |
| Fe2O3 | 0.05 | 0.1 | 0.1 |
| Typical Physical Properties | |||
| Apparent Porosity % | 2.5 | 6.0 | 16.0 |
| Bulk Density(gm/cc) | 5.5 | 5.2 | 4.7 |
Tundish Nozzles for single heat from 20-60 MT
Our single heat tundish nozzles are suitable for single Heat upto 20 MT or a sequence heat upto 60 MT without
Corrosion of the bore which ensures a smooth and trouble-free operation, enhances the life of copper mould tubes and increases productivity.
| Typical Chemical Analysis (%) | ZN-65 | ZN-70 | WB-85 |
| Al2O3 | – | – | 85.0 |
| ZrO2 | 65.0 | 70.0 | – |
| C | – | – | 4.0 |
| SiC | – | – | 5.0 |
| Cr2O3 | – | – | 3.0 |
| Typical Physical Properties | |||
| Apparent Porosity % | 20.0 | 20.0 | 5.0 |
| Bulk Density(gm/cc) | 3.70 | 3.8 | 3.15 |