Sillimanite Refractory Bricks

Sillimanite refractory bricks are a special high-aluminum material used in the lining of glass furnaces. The Al2O3 content is usually above 60%. Sillimanite refractory bricks generally adopt a manufacturing process of high temperature firing and mud mix pouring process.

  • Al2O3(≥): 60% – 65%
  • Bulk Density: 2.3g/cm3 – 2.5g/cm3
  • Refractoriness Under Load: 1600℃ – 1650℃
  • Cold Crushing Strength: 80MPa
KERUI Sillimanite Refractory Bricks

What is Sillimanite Brick?

Sillimanite is a natural high-grade refractory mineral. Therefore, sillimanite refractory bricks made of it have the characteristics of low thermal expansion rate and good high temperature wear resistance. Moreover, it can also resist the erosion of metallurgical slag and various glass liquids. Therefore, its physical and chemical properties are better than high alumina refractory bricks. What’s more, the refractoriness of sillimanite bricks is 1770℃(3218℉)~1830℃(3326℉) and the load softening starting point is 1600℃(2912℉)~1650℃(3002℉). So, we mainly use it for the molding of liquid holes in glass tank kilns, blast furnace linings, furnace throats and ceramic industrial kiln furniture.

KERUI Sillimanite Refractory Brick
High Quality Sillimanite Brick for Sale
Produces Sillimanite Brick

Properties of Sillimanite Refractory Bricks

High Strength
Strong Wear Resistance
Low Apparent Porosity
Good Creep Resistance
Great Chemical Resistance
Excellent Thermal Shock Stability

Excellent Seismic Performance

Sillimanite bricks have good seismic properties and can withstand mechanical vibration and impact loading. In addition, they have a compact structure and high tensile strength and impact resistance. Therefore, it can work stably in industrial equipment and reduce the risk of damage caused by vibration and shock.

Long Service Life

Kerui sillimanite refractory bricks for sale can operate stably for a long time in high temperature environments. It has good resistance to slag erosion and chemical corrosion and can withstand complex process conditions and corrosive media. This, in turn, extends the life of the bricks and reduces the frequency of replacement.

Provide Reliable Fire Resistance

It effectively protects industrial equipment and facilities from high-temperature heat sources. Sillimanite bricks can effectively block heat conduction and reduce heat loss and energy waste. At the same time, sillimanite bricks can also ensure the safe and reliable operation of equipment under harsh working conditions.

Easy to Install and Maintain

Sillimanite bricks have low installation and maintenance costs. Kerui can cut and process according to the specific needs of customers and install it conveniently and quickly. Meanwhile, the maintenance of sillimanite bricks is simple and only requires regular inspection and cleaning without spending a lot of manpower and material resources.

Measurement of Sillimanite Bricks for Sale
Sillimanite Refractory Bricks

Parameter of Sillimanite Refractory Bricks

Al2O3, %6560
SiO2, %3237
Fe2O3, %0.5 1
Bulk Density, g/cm32.52.3
Apparent Porosity, %1819
Cold Crushing Strength, MPa8080
0.2MPa Refractoriness Under Load, ℃16501600

Tips: this table is formulated with reference to Chinese refractory industry standards. Contact us for more information.

Uses of Sillimanite Refractory Bricks

Applications in Glass Kilns

In a glass kiln, a large amount of heat and chemical reactions occur under high temperature conditions. However, Kerui sillimanite bricks can withstand high temperatures and provide good fire protection. That is to say, we usually use it for the insulation layer, furnace bottom and furnace walls of glass kilns. Therefore, it prevents high temperature damage to the kiln structure and ensures the stability and efficiency of the glass production process.

Applications in Other Industrial Equipment

Customers can also use sillimanite bricks in metallurgical furnaces, oil refining furnaces, coal gasification furnaces and electric boilers. These devices produce extremely high temperatures and strong chemical reactions during their working processes. Sillimanite bricks can effectively withstand these extreme conditions due to their stable structure. This ensures the safety and reliability of the production process. Besides, you can follow us on YouTube to learn more.

Glass Kilns
Glass Kiln
Steel Smelting Furnace
Other Industrial Equipment

You Can Buy Cost-Effective Sillimanite Refractory Bricks at Kerui

Affordable Price

Sillimanite bricks offered by Kerui are known for being affordable. Kerui can achieve cost control by optimizing the supply chain and production process. Therefore, customers can purchase high-quality sillimanite fire resistant bricks from Kerui at affordable prices.

Sillimanite Refractory Bricks Versatility

Our sillimanite bricks are suitable for various industrial fields. In addition, customers can choose sillimanite bricks of different specifications and characteristics according to their own needs. Kerui meets different process and environmental requirements.

Prompt Delivery

Kerui has advanced production equipment and efficient supply chain management, enabling it to produce sillimanite bricks on demand. Therefore, customers can quickly obtain the required sillimanite refractory bricks to meet urgent engineering needs.

Professional Service

Our team has extensive industry experience. Therefore, Kerui can provide a series of services such as technical consulting and after-sales support. So, we ensure that the selection of material refractory achieves the best results for our customers’ project needs.

Kerui strong production
Kerui Strong Production
Kerui Technical Discussions
Meeting on Technical Discussions

Package of Mullite Insulation Bricks


Kerui has sufficient production experience and advanced manufacturing technology. Therefore, we maintain the uniformity and stability of producing high-quality sillimanite refractory bricks. In addition, we have professional engineers and technical teams to provide professional suggestions for customers’ practical applications. So, if you have any questions about sillimanite bricks, please contact us for more professional information.

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