Refractory BricksAlumina–silica and corundum bricks
Sillimanite Brick
Sillimanite brick with a low thermal expansion rate, good resistance to metallurgical slag and molten glass, good hot wear resistance, low glass contamination and high refractoriness under load. Grades 65 and 60.
- Grades / types
- Sillimanite Brick 65, Sillimanite Brick 60
Product overview
Sillimanite brick has a low thermal expansion rate, good resistance to metallurgical slag and various molten glasses, and good wear resistance at high temperature. It has good thermal stability at high temperature, contaminates molten glass little and has a high refractoriness under load.
Key characteristics
- Low thermal expansion rate
- Resistance to metallurgical slag and molten glass
- Good wear resistance at high temperature
- Good high-temperature thermal stability
- Low contamination of molten glass
- High refractoriness under load
Technical data
| Property | Unit | Sillimanite Brick 65 | Sillimanite Brick 60 |
|---|---|---|---|
| Al₂O₃ | % | ≥65 | ≥60 |
| SiO₂ | % | ≤32 | ≤35 |
| Fe₂O₃ | % | ≤0.5 | ≤1.0 |
| Apparent Porosity | % | ≤18 | ≤19 |
| Bulk Density g/ | cm³ | ≥2.5 | ≥2.4 |
| Cold Crushing Strength (CCS) | MPa | ≥80 | ≥80 |
| Refractoriness Under Load, 0.2 MPa (RUL) | ℃ | ≥1650 | ≥1600 |
| Permanent Linear Change (PLC) (1400℃×2h) | % | ±0.2 | ±0.2 |
Where Refractories Are Used
Industry
Steel & Iron
Refractories in iron and steel production are used in the blast furnace, hot blast stove, cast house and coke oven on the ironmaking side, and in the hot metal ladle, converter, electric arc furnace, steel ladle, tundish, RH degasser and reheating furnace on the steelmaking side. Material selection varies by operating zone and includes silica, high alumina, magnesia, magnesia-carbon, alumina-silicon carbide-carbon and silicon carbide products together with castables, ramming mixes and mortars.
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Glass
Refractories in the glass industry line the melting tank, the superstructure, the working end and forehearth, the throat and the regenerator. Different furnace types take different materials, in fused, siliceous and magnesia groups: silica, clay, high alumina, sillimanite, mullite, fused mullite, zirconia-corundum, fused corundum and zirconium-containing refractory bricks.
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Available grades, shapes and sizes
Available grades
- Sillimanite Brick 65
- Sillimanite Brick 60
Related solutions
Services that work with this family of materials.
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Technical Consultation
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