Product details
Tundish nozzle is popular used in molten steel pouring， although the molten steel flows through the tundish during pouring，but the temperature of liquid steel is also very high，if using the ordinary materials ，it will not only caused damage, but also affect the construction progress, in order to relieve this situation, the tundish nozzle is made of Zirconia with good high temperature resistance and good corrosion resistance as the main material
| Body |
Prevent deposition of Al2O3 |
Slag line |
Bowl Part |
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|
Work Conditions |
Preheating Type |
Non-Preheating Type |
Argon blowing type |
Non-Argon blowing type |
Carbon-free type |
Z45 |
Same material with stopper |
|
chemical composition |
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| Al2O3 % | ≥40.0 | ≥45.0 | ≥43.0 | ≥65.0 | |||
| ZrO2 % | ≥45.0 | ≥70.0 | |||||
| C+SiO2 % | ≥25.0 | ≥20.0 | ≥20.0 | ≥15.0 | ≤8.0 | ≥12.0 | |
| MgO % | ≥18.0 | ||||||
|
Physical index |
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Bulk density g/cm3 |
≥2.25 | ≥2.28 | ≥2.10 | ≥2.58 | ≥2.65 | ≥3.5 | |
|
Apparent Porosity % |
≤19.0 | ≤19.0 | ≤25.0 | ≤21.0 | ≤20.0 | ≤21.0 | |
|
CCS MPa |
≥19.0 | ≥19.0 | ≥10.0 | ≥18.0 | ≥18.0 | ≥20.0 | |
|
Flexural strength MPa |
≥6.0 | ≥5.5 | ≥5.0 | ||||
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