Zircoa offers Tundish Metering Nozzles in 3 grades. Grade selection is primarily based on the desired casting lifetime of the strand. A wide range of standard or custom designs are available based on the tundish configuration and tundish buld optimization.
Material Grades and (typical) Casting Lifetime
Composition | Casting Lifetime (*typical) |
3004 | up to 20 hours |
3077 | up to 24 hours Lower Nozzle (exchangeable system**): up to 20 hours Upper Nozzle (exchangeable system**): up to 60 hours |
2134 | up to 40 hours |
*Casting lifetime can vary based on operating practices and steel grades.
**Composition 3077 is the common material used as the zirconia insert for exchangeable systems.