Tundish Refractory Materials
Refractory Tundish Nozzle Upper Nozzle
ZhenAn Tundish Upper Nozzles are mainly with Zirconium Inserted.It's a upper nozzle used in steelmaking and a steel refractory upper nozzle for tundish.We have the high density of 5.4g/cm3, taking ...
DESCRIPTION
ZhenAn Tundish Upper Nozzles are mainly with Zirconium Inserted.It’s a upper nozzle used in steelmaking and a steel refractory upper nozzle for tundish.We have the high density of 5.4g/cm3, taking the special material and technology, automatic production equipment, enough firing time, then excellent property than them. For the Tundish Nozzle Inserts, we have making testing on 150 tons Ladle for 95% Zirconia products, our Tundish Nozzle can keep working 10-12 hours, even longer.Tundish Lower Nozzle for Ladles are made from corundum, bauxite, flake graphite, anti-oxidants and phenolic resins.
| ZhenAn Tundish Upper Nozzles | UN-1 | UN-2 | UN-3 | UN-4 | UN-5 | UN-6 | |
| Chemical composition(%)≥ | AI2O3 | 80 | 75 | 80 | 68 | 60 | 65 |
| MgO | – | – | – | – | – | ||
| C | ≤6 | ≤6 | ≥3 | ≥4 | ≥4 | ≥4 | |
| Bulk density (g/cm3)≥ | 2.90 | 2.80 | 2.90 | 2.70 | 2.60 | 2.65 | |
| Apparent porosity (%)≤ | 15 | 15 | 15 | 15 | 15 | 15 | |
| Cold Crushing Strength(MPa)≥ | 70 | 60 | 40 | 40 | 40 | 25 | |
| Specifications could be adjusted as request. | |||||||
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