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Lightweight Mullite Insulation Brick High Temperature Resistant Thermal Insulation Brick for Furnace Kiln
| MOQ: | 1 |
| Price: | NEGOTIABLE |
| Standard Packaging: | PALLET |
| Delivery Period: | 10-15 DAYS |
| Payment Method: | L/C,D/P,T/T |
| Supply Capacity: | 10000 TON/ MONTH |
Lightweight Mullite Insulation Brick
,High Temperature Resistant Insulation Brick
,Thermal Insulation Mullite Brick
High Temperature Mullite Insulation Brick for Industrial Furnace and Kiln Thermal Insulation Lining
Mullite Insulation Brick is a high-performance lightweight refractory material manufactured from high-quality mullite raw materials, alumina and silica through advanced molding and high-temperature sintering processes. It combines excellent thermal insulation properties with high temperature resistance, low thermal conductivity and good structural stability, making it an ideal choice for energy-saving furnace and kiln insulation applications.
Compared with traditional refractory bricks, mullite insulation bricks have lower bulk density, lower heat storage capacity and better insulation performance. They can effectively reduce heat loss, improve thermal efficiency and help reduce fuel consumption in high-temperature industrial equipment.
Due to its excellent resistance to thermal shock, creep and chemical corrosion, Mullite Insulation Brick is widely used as insulation lining, hot face lining or backup lining material in various industrial furnaces operating under high-temperature conditions.
- Excellent thermal insulation performance and low thermal conductivity
- High refractoriness with stable performance at elevated temperatures
- Lightweight structure with low heat storage capacity
- Good thermal shock resistance and volume stability
- High mechanical strength for reliable furnace operation
- Low permanent linear shrinkage after long-term heating
- Energy-saving material that helps improve furnace efficiency
- Easy installation and convenient construction
- Customized dimensions and shapes available
- MaterialMullite / Alumina-Silicate
- Al2O3 Content45%–75% (customizable)
- SiO2 ContentCustomized according to grade
- Working Temperature1300℃–1700℃
- Bulk Density0.6–1.3 g/cm³
- Cold Crushing Strength1.5–8 MPa
- Thermal Conductivity0.15–0.45 W/(m·K)
- Refractoriness≥1600℃
- ShapeStandard Brick / Special Shape Brick
- SizeStandard or OEM Customized
Mullite Insulation Bricks are widely used in:
- Industrial furnace insulation lining
- Ceramic tunnel kiln and shuttle kiln
- Heat treatment furnace
- Petrochemical heating furnace
- Glass melting furnace
- Steel reheating furnace
- Aluminum melting furnace
- Electric furnace insulation layer
- High-temperature laboratory furnace
- Excellent combination of lightweight design and high-temperature performance
- Reduces heat loss and improves energy efficiency
- Extends furnace service life by reducing thermal stress
- Suitable for continuous high-temperature operation
- Stable quality with precise dimensions
- Factory direct supply with customized production capability
- PackagingExport standard wooden pallets with waterproof protection
- DeliverySea shipment, air shipment or according to customer requirements
- ProductionCustomized production available for bulk orders
| Item | JM23 | JM26 | JM28 | JM30 | JM32 |
|---|---|---|---|---|---|
| Al2O3 (%) | ≥37 | ≥54 | ≥64 | ≥72 | ≥77 |
| Fe2O3 (%) | ≤1.0 | ≤0.9 | ≤0.8 | ≤0.7 | ≤0.5 |
| Classification Temperature (ºC) | 1260 | 1400 | 1510 | 1620 | 1730 |
| Bulk Density (g/cm³) | 0.55–1.0 | 0.8–1.0 | 0.85–1.0 | ≥1.0 | ≥1.25 |
| Cold 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 |
| Thermal Expansion 1000ºC (%) | 0.5 | 0.7 | 0.8 | 0.9 | 1.1 |
| Reheating Linear Change (%) CT-30 ºC × 8h | 1230ºC -0.5 | 1400ºC -0.5 | 1510ºC -0.5 | 1620ºC -0.9 | 1730ºC -0.9 |
| Thermal Conductivity (W/m·K) at 400ºC | 0.14 | 0.27 | 0.32 | 0.41 | 0.49 |
| Thermal Conductivity (W/m·K) at 600ºC | 0.16 | 0.29 | 0.34 | 0.43 | 0.50 |
| Thermal Conductivity (W/m·K) at 800ºC | 0.18 | 0.31 | 0.36 | 0.44 | 0.51 |
| Thermal Conductivity (W/m·K) at 1000ºC | 0.20 | 0.33 | 0.38 | 0.45 | 0.53 |
Values shown are typical reference data. Customized grades and dimensions are available upon request.
