Kerui corundum mullite brick is a high-quality kiln refractory brick, made of high-purity mullite and corundum as the main raw materials, with appropriate alumina and silica powder as binders, and fired at high temperature. Corundum mullite brick is white and accurate in size. It is widely used in high-temperature industries such as steel, cement, etc. to extend the service life of kilns.
| Item/Index | Mullite Bricks | Resintering Fused Mullite Bricks | Mullite-Corundum Bricks | Corundum-Mullite Bricks |
|---|---|---|---|---|
| Al2O3 | ≥70% | ≥75% | ≥80% | ≥90% |
| SiO2 | ≤25% | ≤23% | ≤18% | ≤8% |
| Fe2O3 | ≤0.5% | ≤0.5% | ≤0.5% | ≤0.3% |
| Apparent Porosity | ≤17% | ≤14% | ≤19% | ≤18% |
| Bulk Density | ≥2.55g/cm | ≥2.65g/cm | ≥2.70g/cm | ≥2.90g/cm |
| Cold Crushing Strength | ≥90MPa | ≥100MPa | ≥80MPa | ≥100MPa |
| Initial Refractoriness Under Load | ≥1630℃ | ≥1700℃ | ≥1650℃ | ≥1700℃ |
1.High refractoriness 2.Good thermal stability 3.Excellent mechanical properties 4.Strong corrosion resistance
1. Iron and steel metallurgical industry: linings of blast furnaces, hot blast furnaces, etc. 2. Petrochemical industry: cracking furnaces, converters, etc. 3. Power industry: as refractory linings for boilers and steam turbines. 4. Glass and ceramics industry: glass kilns, ceramic kilns. Also used in high-temperature equipment such as aerospace and nuclear industries.