Tundish Nozzle Commodity Name Upper Nozzle Tundish Nozzle Lower Nozzle Chemical analysis Al2O3 % e90.0 e55.0 e60.0 ZrO2 % e5.0 C+SiC % e20.0 e10.0 Physical properties Bulk Density g/cm3 e3.10 e2.45 e2.80 Apparent Porosity % d8.0 d19.0 d10.0 Cold Crushing Strength MPa e45.0 e20.0 e40.0 Modulus of Rupture MPa e10.0 e5.0 e10.0