shaped refractory material
Super-Duty High-Alumina Brick
Super-duty high-alumina brick is a dense fired refractory brick produced by sintering with first-grade bauxite clinker as the main raw material. The industry generally defines Al₂O₃ ≥80%, and it belongs to the highest-end bauxite series within high-alumina bricks.
| Grade | Al₂O₃ Content | Long-term Service Temp. | Typical Applications |
| Lz-80 Super-Duty High-Alumina Brick | ≥80% | 1450‑1500℃ | High-temperature sections of heating furnaces, burning zones of lime kilns, kiln mouths of rotary kilns, high-temperature linings of incinerators, blast furnace hot blast stoves, upper parts of hot metal ladles, high-temperature zones of boiler furnaces, linings of non-ferrous metal kilns. |