Bauxite Based Fire Bricks
Properties
- Refractoriness Under Load (RUL): High alumina bricks have a higher refractoriness under load compared to fireclay bricks due to higher Al2O3 content and fewer impurities.
- High Cold Crushing Strength: These exhibit high cold crushing strength, meaning they can withstand significant compressive forces without crumbling at room temperature. This property is crucial in evaluating their robustness and load-bearing capacity
- Refractoriness & Service Temperature Softening point (~ 1650–1800 °C) dictates max continuous service temperature. Always design with safety margin (~ 100 °C)
- Thermal Conductivity & Shock Lower These bricks possess excellent thermal shock resistance, allowing them to endure rapid temperature fluctuations without cracking or spalling
Applications
- Steel : EAFs, ladles, converters, tundishes
- Cement : Kiln burning zones, riser ducts
- Glass : Melting tanks, regenerators, port necks
- Power Plants : Boiler linings, ash-handling systems
- Non-Ferrous : Copper/aluminium melting furnaces
- Petrochemical : Reactors, incinerators, reformers
