Insulating Fire Bricks
Vitcas® Insulating Fire Bricks (IFBs) are lightweight refractory materials with low thermal conductivity, low heat storage, and excellent insulating properties, making them ideal for use in high-temperature applications where energy efficiency and thermal performance are critical. These bricks are available in a range of grades from 23 to 32, each suited to different maximum temperature limits and mechanical requirements. Insulation fire bricks may be used as the primary hot face lining in low-load environments or as back-up insulation behind dense refractory linings in more demanding applications. Their low iron content and resistance to thermal shock make them particularly suitable for environments with rapid heating and cooling cycles. Additionally, their low density contributes to lower heat storage, allowing for faster heat-up and cool-down cycles, which improves overall thermal efficiency and reduces operational costs.
Key Features
- Low thermal conductivity for effective insulation
- Low heat storage - promotes energy efficiency
- Low iron content - reduces contamination risk
- Excellent resistance to thermal shock
- Lightweight construction - easy to handle and install
- Suitable for temperatures up to Grade 32 limits
- Energy saving in continuous or batch operations
Examples of Applications
- Primary hot face linings in low-load furnaces and kilns
- Back-up insulation behind dense refractory linings
- Flue and chimney insulation
- Sulphur recovery equipment
- Hot blast stoves
- Petrochemical reactors and thermal processing units
| Grade | 23 | 26 | 28 | 30 | 32 |
| Al2O3 | 38% | 57% | 62% | 72% | 78% |
| Fe2O3 | 0.9% | 0.7% | 0.6% | 0.5% | 0.2% |
| Max Service Temperature | 1260°C /2300°F | 1430°C /2600°F | 1540°C /2800°F | 1650°C /3000°F | 1760°C /3200°F |