Mullite Refractory

Brand Quality GT23 GT26 GT28 GT30 Classification Temperature (°c) 1260 1430 1540 1650 Bulk Density (g/cm3) 0.55-0.60 0.78 0.88 1.03 Cold Crushing Strength (Mpa) 1.2 1.6 2.1 2.5 Modulus of Rupture (Mpa) 0.9 1.4 1.6 2.1 Reheating Linear Change (%) CT -30 °cX 8H 1230°c -0.5 1400°c -0.5 1510°c -0.5 1620 °c -0.9 Thermal Expansion 1000°c(%) 0.5 0.7 0.8 0.9 Thermal conductivity(W/m.k) 400°c 0.14 0.27 0.32 0.41 600°c 0.16 0.29 0.34 0.43 800°c 0.18 0.31 0.36 0.44 1000°c 0.20 0.33 0.38 0.45 Al2O3 37 58 67 73 Fe2O3 1.0 1.0 1.0 0.5 Quality Brand B5 B6 B7 Classification Temperature (°c) 1330 1430 1530 Bulk Density (g/cm3) 0.78 0.86 0.92 Cold Crushing Strength (Mpa) 2.6 3.3 3.5 Modulus of Rupture (Mpa) 1.7 2.0 2.0 Reheating Linear Change (%) CT-30 °cX 8H 1300°c -0.53 1400°c -0.54 1500°c -0.52 Thermal Expansion1000°c( %) 0.50 0.43 0.54 Thermal conductivity(W/m.k)350°c 0.22 0.25 0.31 Al2O3 32 36 60 SiO2 63 62 38 Fe2O3 1.0 1.0 1.0