Insulation Fire Brick, Mullite Insulating Refractory Bricks¹

Product Description 23 26 28 30 IFB Insulating FirebrickLuyang Insulating Firebrick is made from high-purity refractory powder and organic fillers which burn out during manufacture to give a uniform and controlled pore sture. The brick is compressed in vacuum and sintered under high temperature. Luyang Insulating Firebrick is widely used as hot face refractory lining or back-up insulation in various kinds of industrial furnaces. FeaturesExcellent thermal shock resistanceAccurate and customized dimensionHigh crushing strengthLow thermal conductivityLow heat storage Typical ApplicationsMetallurgy industryPetrochemical industryCeramics industryAluminum industryGlass industry Typical ParametersDescriptionGRADE 23 BRICKGRADE 26 BRICKGRADE 28 BRICKGRADE 30 BRICKClassification Temperature (oC )1300140015001550Chemical Composition (%)Al2O340566773SiO251413024Fe2O3≤1.0≤0.8≤0.7≤0.6Density (kg/m3)6008009001000Modulus of Rupture (MPa)0.91.51.82.0Cold Crushing Strength (MPa)1.22.42.63.0Permanent Linear Change (%)1230oC x 24h ≤0.31400oC x 24h ≤0.61510oC x 24h ≤0.71620oC x 24h ≤0.9Thermal Conductivity (W/m·K)200oC0.150.230.270.28350oC0.180.240.300.35400oC0.190.250.330.38600oC0.230.270.380.40

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