If you have any question, please contact us
If you have any question, please contact us
High alumina brick is a kind of refractory which contain Al2O3 from 48-80%, resist slag corrision, with high RUL and good strength, is widely used as refractory lining in high temperature stoves, like blast furnace, hot blast stove, cement kiln, rotary furnace and etc.
High alumina brick is a kind of refractory which contain Al2O3 from 48-80%, resist slag corrision, with high RUL and good strength, is widely used as refractory lining in high temperature stoves, like blast furnace, hot blast stove, cement kiln, rotary furnace and etc.
| High alumina series | Super high alumina brick | First-grade high alumina brick | Second-grade high alumina brick | |
| Item | Unit | LZ-80 | LZ-75 | LZ-65 |
| Al2O3 , | % | ≥80 | ≥75 | ≥75 |
| Fe2O3, | % | ≤1.5 | ≤1.8 | ≤2.0 |
| Bulk density， | g/cm3 | ≥2.55 | ≥2.50 | ≥2.40 |
| Apparent porosity， | % | ≤22 | ≤23 | ≤24 |
| Cold crushing strength， | Mpa | ≥60 | ≥50 | ≥50 |
| Refractoriness under load ℃ T0.6 | ℃ | ≥1530 | ≥1500 | ≥1480 |
