Light weight mullite 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 chemical demands.
Characteristic:
1 Lower content in iron, alkaline and impurities, good high temperature properties, energy good resistance to reduction atmosphere.
2 Homogeneous structure, light weight, high crushing strength, good insulating properties, energy saving because lower heat storage in the furnace body during cooling-heating cycles.
3 High strength, good volume stability and thermal shock resistance under high temperature.
4 Less size tolerance due to grinding and shaping after sintering, this meets the requirement of construction.
Light weight mullite 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 chemical demands.
Characteristic:
1 Lower content in iron, alkaline and impurities, good high temperature properties, energy good resistance to reduction atmosphere.
2 Homogeneous structure, light weight, high crushing strength, good insulating properties, energy saving because lower heat storage in the furnace body during cooling-heating cycles.
3 High strength, good volume stability and thermal shock resistance under high temperature.
4 Less size tolerance due to grinding and shaping after sintering, this meets the requirement of construction.
Application:
used in metallurgical industry for hot galvanizing furnaces, silicon steel treatment furnace, hot blast stoves and in petrochemicals industry for ethylene cracking furnaces, hydrogen making furnaces, one-stage conversion furnaces, Sulfur recovery devices, and also in other heat engineering equipment such as rolling kilns, shuttle kilns, anti-nit riding and ant carbonizing furnace.
Mullite Brick
Item
JT-23
JT-26
JT-28
JT-30
JT-32
Service temperature℃
1300
1430
1520
1550
1600
Al2O3%
»45
»54
»64
»72
»80
Fe2O3%
«0.9
«0.9
«0.8
«0.7
«0.5
Bulk density,g/cm3
0.6
0.8
0.9
1.0
1.1
Cold compressive strength,MPa
1.8
1.8
2.5
2.8
3.5
Thermal conductivity(350℃ W/MK)
«0.25
«0.26
«0.32
«0.37
«0.42
Permanet linear change on reheating%
±0.4
±0.5
±0.8
±0.8
±1