High Purity Insulation Refractory Clay Bricks , Insulating Mullite Brick
Description:
Laurel supply several grades of mullite insulating brick for use in applications from 1260℃ to 1760℃.Each grade of brick is formulated to meet specific thermal and physical requirements. After firing each brick is machined to close dimensional tolerances.
Insulating bricks are manufactured utilising exceptionally high purity clays and other ceramic materials. The carefully graded organics which are used during the manufacturing process burn out during firing to give a uniform pore structure.
The most competitive price,good quality,safty packing,prompt delivery time,and excellent after-sales services.
Lighter weight,Low thermal conductivity,low impurities,high insulating properties,high CCS and exact tolerance.
This product is a lightweight mullite brick, meticulously crafted from high-purity refractory clays and mullite phases to deliver outstanding thermal insulation with exceptional strength. It stands out in the category of mullite refractory bricks, offering a balance of lightweight design and robust performance—engineered by experienced mullite bricks manufacturers.
High Alumina Composition: The mullite refractory bricks boast an alumina content ranging from 65–75%, promoting remarkable temperature resistance and structural stability
Enhanced Thermal Integrity: Featuring tightly controlled pore structures, these lightweight mullite brick versions reduce thermal conductivity and heat storage for energy-efficient operation
Impressive Temperature Thresholds: Capable of continuous service at around 1260 °C to 1600 °C, depending on the grade—ensuring suitability in high-performance lining systems
Low Density & High Strength: Combining low bulk density with high compressive performance, the lightweight mullite brick supports lightweight furnace construction without compromising durability
Features
1.High insulating properties
2.Strong compressive strength
3.Low heat storage
4.High purity
5.Tight dimensional tolerance
6.Energy saving
7.Low impurities
Applications:
1.Primary hot face linings
2.Back-up insulation for furnaces and kilns
3.Flue insulation
4.Sulphur recovery equipment
5.Hot blast stoves
Specifications:
JM serises
| Item | JM23 | JM26 | JM28 | JM30 |
| AL2O3(%) | 38-44 | 50-58 | 65-70 | 70-73 |
| Fe2O3(%) | 1.0 | 0.9 | 0.8 | 0.7 |
| Classification Temperature (℃) | 1350 | 1430 | 1540 | 1600 |
| Bulk Density (g/cm3) | 0.8-1 | 0.8-1 | 0.8-1 | 0.8-1 |
| Reheating Linear Change (%) CT-30 ℃X 8H | 1250℃ -0.5 | 1400℃ -0.5 | 1500℃ -0.5 | 1550℃ -0.5 |
| Cold Crushing Strength (Mpa) | 3.0-4.5 | 3.0-4.5 | 3.0-4.5 | 3.0-4.5 |
| Modulus of Rupture (Mpa) | 1.5 | 1.7 | 1.8 | 2.0 |
| Thermal conductivity400℃(W/m.k) | 0.25 | 0.27 | 0.32 | 0.41 |
| Thermal Expansion1000℃(%) | 0.5 | 0.7 | 0.8 | 0.9 |
B C serises
| Item | B-1 | C-1 | C-2 |
| AL2O3(%) | 25-30 | 35-40 | 45-50 |
| Fe2O3(%) | 2 | 1 | 1 |
| Classification Temperature (℃) | 1000 | 1300 | 1400 |
| Bulk Density (g/cm3) | 0.8-1 | 0.8-1 | 0.8-1 |
| Cold Crushing Strength (Mpa) | 2-2.5 | 2.5-3.5 | 3.0-4.5 |
| Thermal conductivity400℃(W/m.k) | 0.17 | 0.23 | 0.25 |
Competitive Advantage:
1.Best price, make the products competitive in your market
2.Abundant Experience.
3.Strict Quality Control. Meet clients'quality requirement.
4.Large stocks. Guarantee prompt delivery.
5.Professional Packing. Avoid damage and secure the goods in transportation
Lightweight mullite brick exemplifies advanced insulation technology within the mullite refractory bricks family. Developed by experienced mullite bricks manufacturers, it delivers unmatched thermal efficiency with lightweight performance—perfect for demanding high-heat environments.
How to pack
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