Mullite bricks refer to high-alumina refractory materials with mullite as the main crystal phase. The general alumina content is between 65% and 75%. In addition to mullite, the mineral composition also contains a small amount of glass phase and quartz with a lower alumina content; the one with a higher alumina content also contains a small amount of corundum. It is mainly used for the top of hot blast furnace, blast furnace body and furnace bottom, glass melting furnace regenerator, ceramic sintering furnace, dead corner lining of petroleum cracking system, etc.
Product Parameters
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 |
Product Advantages
(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
Our Advantages
![Jm23 Jm26 Jm28 Mullite Insulating Bricks for Industrial Furnace](//www.micstatic.com/athena/img/transparent.png)
![Jm23 Jm26 Jm28 Mullite Insulating Bricks for Industrial Furnace](//www.micstatic.com/athena/img/transparent.png)
![Jm23 Jm26 Jm28 Mullite Insulating Bricks for Industrial Furnace](//www.micstatic.com/athena/img/transparent.png)
1:What's the MOQ of rder?
A:No limit,We can offer the best suggestions and solutions according to your condition.
Q2:Which payment terms can you accept?
A:T/T,L/C,Western Union,Moneygram,Paypal are available for us.
Q3:Is your company accept customization?
A:We have own factory and excellent technical team,and we accept OEM service.
Q4:How about your company's certification?
A:we can supplyISO9001 and Test Report,also we could apply other necessary certification.