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| 1.Mullite Brick Description |
Mullite bricks are sintered from mullite raw materials and have a good low thermal expansion, low creep, low thermal conductivity, and good chemical stability. There are two types of mullite bricks. One is sintered mullite bricks, which are made by pressing natural mullite as the main raw material and adding additives. The other is re-sintered mullite brick, which is made by sintering synthetic mullite as the main raw material and additives.
Item |
75Mullite Brick |
70 Mullite Brick |
Mullite-corundum Brick |
Al2O3 % |
≥75 |
≥70 |
≥80 |
SiO2 % |
≤23 |
≤25 |
≤18 |
Fe2O3 % |
≤0.4 |
≤0.4 |
≤0.3 |
Bulk Density g/cm3 |
≥2.7 |
≥2.6 |
≥2.8 |
Apparent porosity % |
≤18 |
≤18 |
≤18 |
Cold compressive strength MPa |
≥100 |
≥100 |
≥100 |
(0.2Mpa,0.6%)Load softening began to temperature °C |
≥1680 |
≥1680 |
≥1700 |
| 2.Mullite Brick Feature |
1. High refractoriness
2. High load softening temperature
3. Low temperature creep rate
4. Good thermal shock resistance
5. Acid and slag resistance
6. Good corrosion resistance
| 3.Mullite Brick Application |
Mullite bricks can be used in the construction of glass furnaces, blast furnaces hot blast furnaces, refractory firing tunnel kilns, cracking furnaces, reforming furnaces, heating equipment, refining equipment, regeneration equipment, heating furnaces, shuttle kilns, glass kilns, etc.
| 4.Packing |
1. Carton packaging.
2. Tray + plastic film + fixed band.
3. Pallets: 1*1m,0.93*0.93m.
4. Tray weight: 1.6~2.0ton.
5. Packaging according to customer service requirements.
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