Sapphire Mollite Burner Nozzles BricksMade primarily from electric fused white corundum sand, the product features a dense structure, high-temperature strength, and exceptional resistance to erosion and abrasion. It boasts strong stability and is unaffected by reducing gases such as H2 and CO. Lightweight.Sapphire Mica BricksWidely used as lining for various high-temperature electric furnaces and accessories, as well as in medium and high-temperature sections of industries such as ceramics, electronics, and metallurgy.
Sapphire Mica Brick Physical and Chemical Specifications:
Project | Electrical fused aluminaBrick GY-99 | CorundumMolten Lava Brick 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-temperature pressure strength MPa ≥ | 75 | 100 | 100 | 60 |
Fusibility Temperature: °C | 1790 | 1790 | 1790 | 1790 |
Tensile Softening Point ≥ 0.2 MPa KD 0.2°C | 1700 | 1700 | 1700 | 1650 |
Reheat Line Change (%) 1600×3h ≤ | 0.2 | 0.2 | 0.2 | 0.3 |
Hot stability > 1100℃ water-cooled beverage ≥ | 6 | 10 | 10 | 20 |
Project | Lightweight Alumina Mollite Brick GYM-80 | Lightweight Alumina Mullite Bricks GYM-80 | Lightweight Alumina Mollite Brick GYM-80 | Lightweight Alumina Mollite Bricks GYM-75 | Lightweight Alumina-Mullite Bricks 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 |
Room temperature pressure resistance MPa ≥ | 50 | 40 | 30 | 26 | 25 |
Firing temperature: °C | 1700 | 1650 | 1600 | 1600 | 1550 |
Moisture Softening Point ≥ 0.2 MPa KD 0.2°C | 1650 | 1600 | 1550 | 1550 | 1500 |
Reheat Line Change (%) 1600×3h ≤ | 0.2 | 0.2 | 0.18 | 0.18 | 0.17 |
Hot stability ≥ 1100°C water-cooled beverage | 20 | 26 | 28 | 30 | 30 |
