Loading Port:Tianjin
Payment Terms:TT OR LC
Min Order Qty:1 m.t.
Supply Capability:1000 m.t./month
Packaging Details: | Wood carton box:10pcs/carton wooden pallet:544pcs/pallet |
Delivery Detail: | 15 Days deposit |
Mullite Insulation Refractory Bricks
Refractory Insulation Bricks
Refractory Bricks Manufacturer
Al2O3:48%,
B.D.:0.5~1.0g/c
Insulation bricks are classified under temperature between 1300ºC and 1700ºC, manufactured from high purity alumina clay by mixing, press-forming, drying, sintering and machining. Bricks contain carefully-graded organic fillers which are burned out during sintering to give a uniform controllable pore structure. This technique makes product feature low thermal conductivity and excellent heat insulation
Refractory Insulation brick can be used as a hot face lining directly exposed to the heat or as a backup insulation layer in iron and steel mills, non ferrous foundries, petrochemical, ceramic, glass, cement and oil fired electric power generating plants.
ADVANTAGES:
Light weight and low thermal conductivity allows thinner furnace walls
Maintain stable structural strength throughout ambient to maximum service temperature
Low heat storage results in rapid cooling and heating operation
Low iron and impurities to enhance reducing atmosphere
High thermal shock resistance in preventing spalling
Non standard sizes and shapes are available upon request
Quality | JM-23 | JM -26 | JM -28 | JM -30 | JM -32 | ||
Classification temperature(oC) | 1260 | 1430 | 1540 | 1650 | 1760 | ||
Bulk density (g/cm3) | 0.6 | 0.8 | 0.9 | 1 | 1.25 | ||
Crushing strength (Mpa) | 1.2 | 1.6 | 2.1 | 2.5 | 3.5 | ||
Modulus of rupture (Mpa) | 0.9 | 1.4 | 1.6 | 2.1 | 2.1 | ||
Permanent linear change (CT-30oCX24h)% | 0.5 | 0.4 | 0.5 | 0.9 | 0.9 | ||
Reversible thermal expansion at 1100oC | 0.5 | 0.7 | 0.8 | 0.9 | 1.1 | ||
Thermal shock resistance(cycles)1100oC Water cooling | 30 | 30 | 30 | 30 | 30 | ||
Thermal conductivity (W/m.k) | 400oC | 0.14 | 0.27 | 0.32 | 0.41 | 0.49 | |
600oC | 0.16 | 0.29 | 0.34 | 0.43 | 0.5 | ||
800oC | 0.18 | 0.31 | 0.36 | 0.44 | 0.51 | ||
1000oC | 0.2 | 0.33 | 0.38 | 0.45 | 0.53 | ||
1200oC | - | 0.35 | 0.41 | 0.47 | 0.56 | ||
Chemical Analysis (%) | Al2O3 | 37 | 58 | 67 | 73 | 77 | |
Fe2O3 | 0.7 | 0.7 | 0.6 | 0.5 | 0.4 | ||