Lightweight mullite refractory brick

Description: Lightweight mullite refractory bricks are made from good quality and superpure raw materials, with strictly classified fillings according to their grades. These fillings can form a uniform pore structure after burnt during the process of manufacture. Each grade of products has unique design to meet different thermal, physical and chomical demands. Features: Low thermal conductivityLow heat capacity Low content of impuritiesHigh hot compressive strengthAccurate sizeThe bricks can be processed into special shapes.Application: The refractory linings of hot surfaces or backing heat-insulating layers of other refractory materials. The refractory linings or heat-insulating materials of the industries, such as, ethylene pyrolysis furnaces, tubular furnaces, reforming furnaces of synthetic ammonia, gas generators and high-temperature shullte kilns,etc. PROPERTIES BRAND Type Bulk Density /cm3 Reheat Linear Change 1400°C×12h % Cold Compressive Strength Mpa Cold Modulus of Rupture Mpa Thermal Conductivity 350°Cw/m·k Al2 O3 % SIO2 % Fe2 O3 % GM-26 A 0.7 -0.9 2.0 1.2 0.21 54 42.5 0.8 GM-26 B 0.8 -0.7 2.5 1.4 0.25 55 41.5 0.8 GM-26 C 0.9 -0.5 2.8 1.6 0.30 56 40.5 0.9 GM-26 D 1.0 -0.5 3.2 1.8 0.32 56 40.5 0.9