Ceramic crucibles for centrifugal casting machines are made of fused silica with a clay bond.
Metal can be melted in this crucible with a torch; you can melt metal directly in this crucible in a furnace and then transfer the crucible to the casting machine; or you can melt your metal in a pouring crucible and it would then be poured into this crucible after it is preheated. Metal can be melted in this crucible with a torch up to 2500°F (1371°C).
