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By certification 
Fused mullite is widely used in ladle, torpedo ladle brick, high-temperature industrial kiln brick, glass kiln lining brick and high-temperature sagger, slab and other refractory products.
Fused Mullite’s Chemical Composition
chemical composition % |
AL2O3 |
72-77 |
SiO2 |
23-29 |
|
Fe2O3 |
≤0.1 |
|
R2O |
≤0.5 |
|
RO |
≤0.3 |
|
mullite phrase content (%) |
≥95 |
|
glass phase content (%) |
≤5 |
|
linear expansion coefficient (1/°C) |
-6.0*10-6 |
|
real density (g/m³) |
≥3.2 |
|
refractoriness (°C) |
≥1840 |
|
grain size of section sand (mm) |
0-1/1-3/3-5 |
|
powder (mesh) |
0-325 0-200 |
|
