KAST-O-LITE 30 LI is a high alumina, lightweight, 3000°F maximum service temperature, insulating castable. It exhibits moderate density, excellent strengths, low iron, and low thermal conductivity. Typical applications are aluminum furnace stacks, aluminum holding furnace doors, reheat furnace discharge doors, carbon black backup linings, air heaters, and reheat furnace backup linings.
Chemical Analysis – Calcined Basis
Silica (SiO2) 35.3%
Alumina (Al2O3) 56.6
Iron Oxide (Fe2O3) 0.9
Lime (CaO) 5.0
Magnesia (MgO) 0.3
Titania (TiO2) 1.3
Alkalies (Na2O + K2O) 0.6