Factory Direct Price Rongsheng Mullite Insulation Brick JM23 JM26 JM28 Insulating Refractory Brick
Mullite insulation brick is a high-alumina refractory material with mullite as the main crystal phase. Generally, the alumina content is between 40% and 70%. The working temperature ranges from 1300°C to 1600°C. The advantage of mullite lightweight insulating refractory brick is that the mullite bricks can be exposed to flames and can be directly used as the lining of high-temperature kilns. Mullite lightweight insulation brick is a refractory insulation material widely used in new industrial kilns and high-temperature equipment.
Features of JM23 JM26 JM28 Mullite Insulating Firebrick
● Low thermal conductivity
● High strength and corrosion resistance
● Low heat capacity
● Low impurity content
● High temperature resistance
● Good insulation performance
● Good thermal shock resistance
● Lower bulk density
Product Application of Mullite insulation brick
Mainly used for hot blast furnace top, blast furnace stack and bottom, glass furnace regenerator, ceramic sintering kiln, dead corner lining of petroleum cracking system,ethylene pyrolysis furnaces, tubular furnaces,reforming furnaces of synthetic ammonia,gas generators,linings or heat-insulating materials of the industries,etc.
1. Furnaces of metallurgy industry, heat treatment furnace
2. Furnaces of chemical industry and construction industry.
3. Furnace of incineration of garbage, recirculating fluidized bed furnace
Product Specification of JM23 JM26 JM28 Mullite Insulating Fire Brick Thermal Insulation Brick
The size of the mulliate insulation brick is 230*114*65mm. Other sizes can be customized according to drawings.
| Item Brand | JM23 | JM26 | JM28 | JM30 |
| Max Temperature ( C) | 1260 | 1460 | 1540 | 1700 |
| Bulk Density (g/cm3) | 0.55-0.60 | 0.8 | 0.89 | 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 1100 °C( % ) | 0.5 | 0.7 | 0.8 | 0.8 |
| 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 | 50 | 64 | 72 |
| Fe2O3 % | 1.0 | 1.0 | 1.0 | 0.5 |
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Mullite Insulation Brick JM23 JM26 JM28 Insulating Refractory Brick Images
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