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Product introduction of mullite castable
Mullite castable is a refractory castable made of mullite as aggregate and powder with a certain binding agent. It has a high mechanical strength and good resistance to thermal shock and abrasion.
Features of mullite castable
Mullite castables are characterised by high strength, good volume stability and excellent resistance to thermal shock, and are resistant to erosion, scouring and abrasion in use.
Applications of mullite castable
Mullite castables are mainly used for lining boilers, blast furnaces, hot air furnaces, heating furnaces, ceramic furnaces and various other furnaces.
Parameters of mullite castable
| Mullite castables | MJ55 | MJ60 | MJ65 | MJ70 |
| Al2O3 content, % ≥ | 55 | 60 | 65 | 70 |
| Bulk density, g/cm3 ≥ | 2.2 | 2.3 | 2.4 | 2.5 |
| Flexural strength, MPa ≥ | 7 | 7 | 8 | 9 |
| Compressive strength, MPa ≥ | 30 | 35 | 40 | 45 |
| Linear variation(%) ≤ | ±0.5 | ±0.5 | ±0.5 | ±0.5 |
| Maximum use temperature, ℃ | 1450 | 1500 | 1550 | 1600 |
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