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Product description of mullite castable
Mullite castable with high temperature can directly contact the flame for work lining, to achieve high temperature energy saving; Unit weight is light, the structural weight is reduced by 40 ~ 60%, and the hidden danger of broken brick is eliminated. Low thermal conductivity, porous mullite aggregate ingredients, low thermal conductivity, good thermal insulation performance; It can fast oven, shorten the time limit of oven and bring remarkable economic benefits.
Features of mullite castable
Mullite castable has the characteristics of high strength, good volume stability and excellent thermal shock resistance. It is resistant to erosion, erosion and wear in use.
Parameters of mullite castable
| Product Grade | 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 |
More relevant refractory products: Silicon carbide brick