Mullite Bricks

Mullite Bricks are made of synthetic fused mullite or sintered mullite, pressed by selected shaping processes, and fired in high temperature furnaces. Mullite bricks offer high density, low porosity, good hot strength, and good slag resistance. Mullite bricks are preferred for high temperature, high load applications, such as at the hot end of regenerative chambers of glass melters, the superstructure of the furnace, and the arch of glass fiber melters, due to their excellent thermal properties, excellent strength at high temperature, great resistance to thermal shock, etc.
Other Refractory bricks with Mullite:
Insulating Firebricks (IFB) with Mullite for light weight, high strength insulating properties
Zircon Mullite Bricks, like high alumina bricks and zirconia bricks, are used in the superstructure of glass melting tanks. However, Zircon Mullite Bricks possess even higher strength and corrosion resistance.
KT Refractories distributes Mullite Bricks, Corundum Mullite Bricks, Zircon Mullite Bricks, and insulating firebrick with Mullite of the best quality at the most competitive prices worldwide.
Call 1-877-365-2995 to order Mullite Bricks, Corundum Mullite Bricks, Zircon Mullite Bricks, insulating firebrick with Mullite, and our fast, responsive customer service and reliable delivery service will save you time and money!
Typical Mullite Bricks Technical Data Specs
Mullite Bricks | Specification | Chemical Composition | % |
Bulk Density (g/cm3) | 2.9-3.30 | Al2O3 | 70.1-75.47 |
Apparent Porosity (%) | < 10 | SiO2 | 19.32-21.6 |
Cold Crushing Strength (MPa) | 250-500 | Fe2O3 | 0.92-1.90 |
Refractoriness (°C) | 1730-1800 | CaO | 0.23-0.70 |
Refractoriness under load 0.2MPa (°C) | ≥1700 | MgO | 0.16-1.5 |
Thermal Expansion (20-1000 °C) | 0.60-0.65 | TiO2 | 3.1 |
Typical Mullite Bricks
Mullite Bricks Properties | FAS-70 | SA-40P | SA-40 | ||||||
SPEC | TYPICAL | SPEC | TYPICAL | SPEC | TYPICAL | ||||
Apparent Porosity | % | 20 Max | 17.5 | 19 Max | 16.5 | 20 Max | 17.5 | ||
Bulk Density | g/cm3 | 2.5 Min | 2.65 | 3.0 Min | 2.95 | 2.9 Min | 2.95 | ||
Cold Crushing Strength | MPa | 50 Min | 85 | 60 Min | 85 | 60 Min | 85 | ||
Chemical Composition | Al2O3 | % | 70 Min | 76 | 87 Min | 87 | 85 Min | 87 | |
SiO2 | % | 28 Max | 22.5 | ||||||
Fe2O3 | % | 0.4 Max | 0.5 | 0.7 Max | 0.5 | 0.8 Max | 0.5 | ||
Na2O | % | 0.4 Max | 0.3 |
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Technical data for other firebricks are available upon request.
Features
Applications
Hot end of regenerative chambers of glass melters, glass furnace
Superstructure of the furnace
Arch of glass fiber melters
Blast furnace lining
Hot blast furnace
Applications
Hot end of regenerative chambers of glass melters, glass furnace
Superstructure of the furnace
Arch of glass fiber melters
Blast furnace lining
Hot blast furnace
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