Corundum mullite brick technology parameters
| ITEM | UNIT | Mullite brick | Resintering fused mullite bricks | Mullite - corundum brick | Corundum mullite brick |
| Al2O3 | % | ≥70 | ≥75 | ≥80 | ≥90 |
| SiO2 | % | ≤25 | ≤23 | ≤18 | ≤8 |
| Fe2O3 | % | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.3 |
| APP | % | ≤17 | ≤14 | ≤19 | ≤18 |
| Bulk density | g/cm | ≥2.55 | ≥2.65 | ≥2.70 | ≥2.90 |
| Room temperature compressive strength | MPa | ≥90 | ≥100 | ≥80 | ≥100 |
| Dutch soft starting point (0.2 MPa, 0.6%) | ℃ | ≥1630 | ≥1700 | ≥1650 | ≥1700 |
| Application | Glass furnace upper structure brick, feeding, cover plate, metallurgy is very warm in it industry kiln lining, carbon black reactor quench section, stay segment lining. | Glass furnace top self-closed, self-closed feet, other industrial thermal technology equipment lining brick. | Glass furnace brick of upper structure, cover plate, forming parts, temperature, carbon black in the reactor and other thermal lining device.High temperature with mullite and corundum saggar. | The upper structure of glass furnace brick, brick, cover plate, molding parts, temperature, carbon black in the reactor lining device and other thermal lining.High temperature with corundum - mullite saggar. |
