Mullite Bricks
Description:
Mullite bricks are high alumina refractories with mullite as the main crystal phase. Generally, the alumina content is between 65% and 75%, and the refractory of mullite brick is relatively high, reaching above 1790 ℃. Standard size: 230 x 114 x 65 mm , special size and request service also provide.
Features:
Mullite bricks are characterized by their high refractoriness, good thermal stability and resistance to corrosion and erosion of glass liquid and hence have the least contamination to glass liquid.
Application:
Mullite bricks are the most common refractoriness used for the feeder machine and tube drawing machine in domestic and foreign glass industries to promote productivity obviously.
Specification:
Item | Sintered Mullite Bricks | Corundum Mullite Bricks | ||||
MZ-60 | MZ-65 | MZ-70 | MZ-75 | GMS-80 | GMS-85 | |
Al2O3 % Min | 60 | 65 | 70 | 75 | 80 | 85 |
Fe2O3 % Max | 1.2 | 1.0 | 0.8 | 0.6 | 0.5 | 0.5 |
Refractoriness ℃ Min | 1790 | 1790 | 1790 | 1790 | 1790 | 1790 |
B.D. G/cm3 Min | 2.45 | 2.5 | 2.55 | 2.60 | 2.65 | 2.75 |
Apparent Porosity % Max | 20 | 20 | 20 | 20 | 20 | 20 |
Compressive Strength MPa Min | 50 | 50 | 55 | 60 | 60 | 60 |
Refractoriness Under Load T2 ℃ Min | 1600 | 1650 | 1700 | 1700 | 1700 | 1700 |
Linear Change Rate After Reheating % 1500℃x3h | +/-0.1 | +/-0.1 | +/-0.1 | +/-0.1 | +/-0.2 | +/-0.2 |
Application | Used in various inner walls of high temperature kiln and heating equipment, glass kiln | |||||
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