Wholesale Price Mullite Insulating Bricks fireproofing in Aluminum Industry
Laurel supply several grades of mullite insulating brick for use in applications from 1260°C to 1760°C.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 mullite insulation brick is a high-performance refractory material designed for applications requiring excellent thermal insulation and structural integrity at elevated temperatures. Manufactured from high-purity mullite, these mullite insulating bricks combine low thermal conductivity with superior strength, making them ideal for use in a wide range of industrial furnaces and kilns.
With their lightweight design, high thermal efficiency, and durability, the mullite insulation brick and other mullite insulating bricks are essential for reducing energy consumption while maintaining stable high-temperature operations.
Key Features
Low Thermal Conductivity – The mullite insulation brick provides outstanding energy-saving performance by minimizing heat loss.
High Temperature Resistance – Suitable for continuous use in environments exceeding 1500°C.
Lightweight & Strong – Mullite insulating bricks offer a combination of low bulk density and good mechanical strength.
Excellent Chemical Stability – Resistant to acidic and neutral atmospheres.
Dimensional Accuracy – Precision manufacturing ensures easy installation and tight joints.
| 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 (°C) | 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 °CX 8H | 1250°C -0.5 | 1400°C -0.5 | 1500°C -0.5 | 1550°C -0.5 |
| Cold Crushing Strength (Mpa) | 2.0-3.5 | 2.0-3.5 | 2.0-3.5 | 2.0-3.5 |
| Modulus of Rupture (Mpa) | 1.5 | 1.7 | 1.8 | 2.0 |
| Thermal conductivity400°C(W/m.k) | 0.25 | 0.27 | 0.32 | 0.41 |
| Thermal Expansion1000°C(%) | 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 (°C) | 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°C(W/m.k) | 0.17 | 0.23 | 0.25 |
1. High insulating properties
2. Strong compressive strength
3. Low heat storage
4. High purity
5. Tight dimensional tolerance
6. Energy saving
Application :
Primary hot face linings
Back-up insulation for furnaces and kilns
Flue insulation
Sulphur recovery
HIGH LIGHT :
high temperature insulation brick, alumina silica fire brick,fire proof bricks, clay fire bricks, insulating refractory brick,Straight K-23 Firebrick,wedge insulating bricks
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