Oval Alumina Mollite BrickMade primarily from fused white corundum sand, the product features a dense structure, high-temperature strength, and excellent resistance to erosion and wear. It boasts strong stability and is unaffected by reducing gases such as H2 and CO. LightweightSapphire Mica BricksWidely used in the refractory linings and accessories for various high-temperature electric furnaces, as well as in the medium and high-temperature sections of ceramics, electronics, metallurgy, and other industries.
Sapphire Mica Brick Physical and Chemical Index:
Project | Electrical fused aluminaBrick GY-99 | CorundumMolten Lava Brick GYM-95 | SapphireMolten Lava Bricks GYM-90 | CorundumMolten 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 |
Room temperature pressure resistance 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 |
Reburned Wire Change (%) 1600×3h ≤ | 0.2 | 0.2 | 0.2 | 0.3 |
Hot Stability ≥1100°C 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 Brick GYM-75 | Lightweight Alumina Mollite 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 |
At room temperature, pressure resistance strength MPa ≥ | 50 | 40 | 30 | 26 | 25 |
Firing temperature: ℃ | 1700 | 1650 | 1600 | 1600 | 1550 |
Holding Point (°C) at 0.2 MPa KD ≥ | 1650 | 1600 | 1550 | 1550 | 1500 |
Reburn Wire Change (%) ≤1600×3h | 0.2 | 0.2 | 0.18 | 0.18 | 0.17 |
Hot Stability ≥1100℃ Water Cooled Beverage | 20 | 26 | 28 | 30 | 30 |
