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Feature:
1.bricks are made from high quality bauxite
2.dry pressed
3.burned under tunnel kiln
4.accurate dimension
5.high strength
Product specification: Can be used in various kilns because of its cheapness and general tray package. Among all of the refractory materials, it is the mostly used in the key positions.Molding method: it has down draft kiln and tunnel kiln and the general sintering temperature is 1360-1480 degrees. It is a kind of aluminosilicate refractory product which aluminum oxide (Al2O3) content is higher than 48%.
| Item | Properties | |||||
| LZ-80 | LZ-75 | LZ-65 | LZ-55 | LZ-48 | ||
| Al2O3 ,% | 80 | ≥75 | ≥65 | ≥55 | ≥48 | |
| Refractoriness °C | ≥1790 | ≥1790 | ≥1790 | ≥1770 | ≥1750 | |
| Bulk density,g/cm3 | 2.65 | 2.5 | 2.45 | 2.4 | 2.3 | |
| Softening temperature under load | 1530 | ≥1520 | ≥1500 | ≥1470 | ≥1420 | |
| Permanent linear change,% | 1500°CX2H | +0.1 -0.4 | +0.1 -0.4 | +0.1 -0.4 | +0.1 -0.4 |
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| 1450°CX2H |
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|
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| +0.1 -0.4 | |
| Apparent porosity,% | 22 | ≤23 | ≤23 | ≤22 | ≤22 | |
| Cold Crushing strength Mpa | 55 | ≥50 | ≥45 | ≥40 | ≥35 | |
| Application | All industrial furnace | |||||
High alumina brick
