Molten steel pouring nozzle

A molten steel pouring nozzle which comprises:

• a nozzle body comprising an alumina-graphite refractory, having, along the axis thereof, a bore through which molten steel flows;
• and
• an outer refractory layer arranged on an outside portion of said nozzle body so as to be integral with said nozzle body and to be flush with an outer surface thereof, said outer refractory layer being arranged on a portion of said outside portion of said nozzle body, which portion is in contact, when a lower portion of said molten steel pouring nozzle is immersed into molten steel, with the open air without being immersed into said molten steel, and said outer refractory layer consisting essentially of:
• ______________________________________ alumina (Al.sub.2 O.sub.3) from 40 to 75 wt. % carbon (C) from 10 to 30 wt. %, silica (SiO.sub.2) from 1 to 30 wt. %, silicon carbide (SiC) from 1 to 20 wt. %, and low-melting glass from 1 to 10 wt. %;
• and said low-melting glass consisting essentially of:
• alumina (Al.sub.2 O.sub.3) from 1.5 to wt. %, silica (SiO.sub.2) from 20.0 to 56.0 wt. %, calcium oxide (CaO) from 2.5 to 14.4 wt. %, magnesia (MgO) from 0.05 to 1.60 wt. %, potassium oxide (K.sub.2 O) from 0.25 to 6.40 wt. %, sodium oxide (Na.sub.2 O) from 0.5 to wt. %, boric acid (B.sub.2 O.sub.3) from 2.5 to 24.0 wt. %, and boron carbide (B.sub.4 C) from 20.0 to 50.0 wt. %. ______________________________________