The Tundish Nozzle (TN) is an iso-statically pressed Alumina-Graphite refractory that serves as an intermediate component between the Monoblock Stopper (MBS) and the Sub Entry Shroud (SES). The stopper regulates the steel flow in conjunction with the TN. The TCM-TN/TN system, introduced as part of continuous casting refractories, enables hot changing of the Sub Entry Shroud for extended casting sequences.