abstract |
(57) Abstract: A molten steel casting nozzle (10) having a through hole (22), wherein at least a part (26) of the nozzle (10) forming the hole (22) is 20 to 75. A molten steel casting nozzle consisting of a refractory having a weight percent of calcium zirconate, 5 to 30 weight percent of graphite and 0.5 to 15 weight percent of calcium silicide. |