Sapphire Mica Porous BricksManufactured primarily from electric fused white corundum sand, the product boasts a dense structure, high-temperature strength, and exceptional resistance to erosion and abrasion. It is also characterized by strong stability and is unaffected by reducing gases such as H2 and CO. Lightweight.Corundum Mica BrickWidely used in the lining and accessories of various high-temperature electric furnaces, as well as in the medium and high-temperature sections of industries such as ceramics, electronics, and metallurgy.
Corundum mullite brick physical and chemical specifications:
Project | Electrolytic fused aluminaBrick GY-99 | CorundumMolten Lava Bricks GYM-95 | SapphireMolten Lava Brick GYM-90 | SapphireMolten Lava Brick 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 |
Room temperature pressure resistance MPa ≥ | 75 | 100 | 100 | 60 |
Firing temperature (°C) | 1790 | 1790 | 1790 | 1790 |
Load softening point ≥0.2MPa KD 0.2°C | 1700 | 1700 | 1700 | 1650 |
Reheat wire variation (%) ≤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 Mollite Brick GYM-80 | Lightweight Alumina-Mullite Bricks 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 |
Fusibility temperature (°C) | 1700 | 1650 | 1600 | 1600 | 1550 |
Tensile Softening Point ≥ 0.2 MPa, KD 0.2℃ | 1650 | 1600 | 1550 | 1550 | 1500 |
Recalculated Wire 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 |
