Abstract: Substantially non-aqueous, plastic, high magnesium oxide refractory compositions are disclosed. The materials remain fluid over prolonged storage times, providing for easy workability and require no addition of water prior to use.

Abstract: The base plates or stools of ingot molds used in the casting and teeming of molten steel can be repaired by spraying onto the ingot mold base plate from 2-5 gallons of a composition comprising:______________________________________ Aluminum silicate refractory grain.sup.1 50-80% Al.sub.2 O.sub.3 4.0-17.0% Bentonite clay 0.2-5.0% Binder 4.0-25% 75% phosphoric acid 72-82% Alumina trihydrate 6.2-16.2% Powdered boric acid 1.0-7.0% H.sub.2 O 4.0-14.

Abstract: The base plates or stools of ingot molds used in the casting and teeming of molten steel can be repaired by spraying onto the ingot mold base plate from 2-5 gallons of a composition comprising:______________________________________ Less than 20 mesh alumina-silicate refractory grain.sup.1 49.5% Less than 200 mesh alumina silicate refractory grain.sup.1 11.56% Less than 325 mesh Al.sub.2 O.sub.3 13.21% Less than 325 mesh bentonite clay 1.75% Binder - 75% phosphoric acid 77.0% Alumina/trihydrate 11.2% Powdered boric acid 2.35% H.sub.2 O 9.45% 11.99% Water 11.99% ______________________________________ +HU 1Contains approximately 47% as Al.sub.2 O.sub.

Abstract: An improved ingot mold base member comprising a cast iron base with a refractory insert disposed within its face. The refractory insert is positioned within a cavity in the cast iron base and attached with Z-shaped anchors, said anchors contacting a groove in the side of the insert and fastened to the bottom of the cavity. A channel between the edge of the refractory insert and the edge of the cavity is filled with a plastic refractory.

Abstract: A novel mold coating comprising humic acid, and/or humic acid salts, and graphite in a liquid suspension containing organic bonding agents is disclosed as well as a method of forming ingots in which molten steel is poured into molds which are covered by the coating.

Abstract: An improved ingot mold base member comprising a cast iron base with a refractory insert disposed within its face. The refractory insert is positioned within a cavity in the cast iron base and attached with Z-shaped anchors, said anchors contacting a groove in the side of the insert and fastened to the bottom of the cavity. A space between the edge of the refractory insert and the edge of the cavity is filled with a plastic refractory.