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High Alumina Insulating Refractory Brick
Brand: HongTai Refractory
Category: Insulating Fire Bricks
Al2O3: ≥48%
Bulk Density: 0.6-1.0g/cm3
Payment Terms: T/T, Credit Cardse, E-Checking, Alibaba Trade Assurance
Product Information
Introduction
Technical Data
Properties
Applications
Introduction
High Alumina Insulating Refractory Bricks are a type of lightweight, heat-resistant building material primarily used in high-temperature applications.
They are made from high-alumina content materials, which provide excellent thermal insulation properties, as well as resistance to chemical attack and mechanical stress.
Technical Data
| Item | LG-1.0 | LG-0.9 | LG-0.8 | LG-0.7 | LG-0.6 |
| Al2O3 | ≥48 | ≥48 | ≥48 | ≥48 | ≥48 |
| Fe2O3 | ≤2.0 | ≤2.0 | ≤2.0 | ≤2.0 | ≤2.0 |
| Bulk Density (g/cm3) | ≤1 | ≤0.9 | ≤0.8 | ≤0.7 | ≤0.6 |
| Cold Crushing strength (Mpa) | ≥3.92 | ≥3.43 | ≥2.94 | ≥2.45 | ≥1.96 |
| Thermal Conductivity Coefficient (W/mk) | ≤0.45 | ≤0.45 | ≤0.35 | ≤0.35 | ≤0.3 |
| Permanent Linear Change Rate (max 2%) (℃) | 1400 | 1400 | 1400 | 1350 | 1350 |
Properties
- High alumina content
- Low thermal conductivity
- Excellent thermal insulation
- High-temperature resistance
- Chemical resistance
- Mechanical strength
- Lightweight
- Porous structure
Applications
| Industry/Application | Usage |
|---|---|
| Furnaces and Kilns | Lining for glass, steel-making, electric furnaces, and cement rotary kilns |
| Metallurgical Industry | Lining for ladles, tundishes, and torpedo cars |
| Ceramic Industry | Construction of tunnel kilns, roller kilns, and shuttle kilns |
| Petrochemical Industry | Lining for cracking furnaces, conversion furnaces, and high-temperature equipment |
| Heat Treatment Equipment | Insulation for annealing, quenching, and tempering furnaces |
| Power Plant Boilers | Lining for boilers, combustion chambers, and flue ducts |
| Refractory Insulation | Backup insulation layer behind dense refractory bricks |
