High-quality Alumina Mollite BrickMade primarily from electric fused white corundum sand, the product features a dense structure, high-temperature strength, and exceptional resistance to erosion and wear. It boasts strong stability and is unaffected by reducing gases such as H2 and CO.High-quality Alumina Mullite BricksBroadly used in the refractory linings and accessories for various high-temperature electric furnaces, as well as in medium and high-temperature sections of industries such as ceramics, electronics, and metallurgy.
Corundum mullite brick physical and chemical indicators:
Project | Electrolytic fused aluminaBrick GY-99 | SapphireMolten Limestone Bricks GYM-95 | CorundumMolten Lava Bricks GYM-90 | SapphireMolten Lava Bricks GYM-80 |
Al2O3%≥ | 99 | 95 | 90 | 80 |
SiO2%≤ | 0.3 | 3.0 | 9.0 | 18 |
Fe2O3%≤ | 0.2 | 0.2 | 0.4 | 0.4 |
Volume Density g/cm³3≥ | 3.2 | 3.0 | 2.9 | 1.8-2.7 |
At room temperature, pressure resistance strength MPa ≥ | 75 | 100 | 100 | 60 |
Firing temperature in °C | 1790 | 1790 | 1790 | 1790 |
Holding Point (°C) at 0.2 MPa KD ≥ | 1700 | 1700 | 1700 | 1650 |
Reburn Wire Change (%) ≤ 1600×3h | 0.2 | 0.2 | 0.2 | 0.3 |
Hot stability ≥ 1100℃ water-cooled beverage | 6 | 10 | 10 | 20 |
Project | Lightweight Alumina-Mullite Bricks GYM-80 | Lightweight Alumina Mollite Bricks GYM-80 | Lightweight Alumina-Mullite Brick GYM-80 | Lightweight Alumina Mollerite Bricks GYM-75 | Lightweight Alumina Mollite Brick GYM-70 |
Al2O3%≥ | 80 | 80 | 80 | 75 | 70 |
SiO2%≤ | 18 | 18 | 18 | 20 | 25 |
Fe2O3%≤ | 0.4 | 0.4 | 0.35 | 0.3 | 0.3 |
Volume Density g/cm³3≥ | 1.7 | 1.4 | 1.1 | 1.0 | 1.0 |
At room temperature, pressure resistance strength MPa ≥ | 50 | 40 | 30 | 26 | 25 |
Fusibility temperature (°C) | 1700 | 1650 | 1600 | 1600 | 1550 |
Moisture Softening Point ≥ 0.2 MPa KD 0.2°C | 1650 | 1600 | 1550 | 1550 | 1500 |
Reburn Line Change (%) 1600×3h ≤ | 0.2 | 0.2 | 0.18 | 0.18 | 0.17 |
Hot stability ≥ 1100℃ water-cooled beverage | 20 | 26 | 28 | 30 | 30 |
