Sillimanite Bricks  

Sillimanite bricks have better physical and chemical performance than high alumina brick, and are featured with high refractoriness, low porosity, wear resistance, good thermal shock resistance, and high refractoriness under load, etc. Such bricks can be used in the glass furnace, blast furnace, and ceramic kiln, etc.

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    Sillimanite Refractory Bricks  Specification



    RSGX-70 RSGX-60
    Al2O3(%)≥ 70 60
    Fe2O3(%) ≤ 1.0 1.0
    Apparent(%) ≤ 20 22
    Bulk density(g/cm3)≥ 2.60 2.50
    Cold crushing strength(Mpa)≥ 70 50
    0.2Mpa Refractoriness under load(℃)≥ 1550 1500
    Refractoriness(℃)≥ 1790 /
    Creep rate (0.2Mpa, 20-50h, %) / /
    Thermal shock resistance(1000℃, water quenching ,cycle)≥ 25 /

    Sillimanite Refractory Bricks Components

    Sillimanite brick belongs to neutral refractory. It is made of sillimante minerals, which can transform into mullite and free silica after high temperature firing. It is produced by the methods of high temperature firing and casting.

    Sillimanite Refractory Bricks Properties

    Sillimanite properties are better than that of high alumina bricks. Sillimanite brick is featured with high refractoriness, about 1770-1830℃, high refractoriness under load, with the RUL starting point about 1500~1650℃, low porosity, good thermal shock resistance, low creep rate at high temperature, and good wear resistance.
    The properties and advantages of sillimanite bricks can be reflected in the usages.
    Because of the high temperature resistance, high strength,  and impact resistance, sillimanite brick can used as the high temperature indirect heating material, such as the aluminium reduction cell, and copper melting furnace lining, etc.

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    • High refractoriness: 1770-1830℃
    • High refractoriness under load: starting point about 1500~1650℃
    • Low porosity, good thermal shock resistance
    • Low creep rate at high temperature, and good wear resistance.
    • High temperature resistance, high strength and impact resistance
    • Energy saving:  save energy by 35%, and improves the productivity by 20%-30%

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      Sillimanite Bricks  Applications

      To conclusion, sillimanite brick can be used in the high-temperature kilns of the metallurgy, ceramics, petroleum chemical, non-ferrous smelting industry, glass and other industries.  such as the following parts:


      high quality sillimanite bricks


      Non-ferrous melting furnace, and large-scale blast furnace;

      Metallurgy industry: wear-proof tubes, and cyclones

      Aluminium reduction cell, and air duct of the hot blast;

      Copper melting furnace lining;

      Wear-proof tubes, cyclones, lime kiln, and glass kiln, etc.

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        In the iron and steel industry, because of the corrosion resistance, thermal shock resistance, and good thermal conductivity, sillimanite brick can be used in ling of the large-scale blast furnace, thus improve the service life. In the metallurgy industry, it can be used in the wear-proof tubes, and cyclones for the strong abrasion resistance. In addition, sillimanite brick is energy saving. Because of the good thermal conductivity and good thermal shock resistance, it decreases energy consumption by 20%, and saves energy by 35%, thus improves the productivity by 20%-30%.

        In addition, sillimanite brick is also applied in the high speed scour of the hot air and molten iron slag, tuyere of the blast furnace is influenced by the thermal stress caused by the temperature difference. In order to ensure the stability of the structure, and to avoid alkaline erosion, or to prevent tuyere air from leakage, sillimanite brick is used in such parts, because of its good thermal shock resistance and spalling resistance.

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          Sillimanite Bricks  Manufacturer

          Zhengzhou Rongsheng Kiln Refractory Co. Ltd, established in the early 90s of twenty century, located in the foot of Mount Song, a place of Xinmi city, which is in the middle of Zhengshao Expressway. The abundant high quality materials and convenient transportation, neighboring the Longhai and Jingguang railway lines, provide favorable conditions for the production of the refractory materials. After 20 years of hardworking and development, it has become a comprehensive enterprise producing refractory materials in metallurgy, building materials, electric power and chemical industry, etc.


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            As a professional sillimanite bricks manufacturer, there are about 1262 employees, including senior technical personnel 65, high-tech workers 80 and complete physical and chemical testing equipment and advanced detection methods. The credit rating is AAA grade, and the economic indicators and the enterprise technical force, namely the scale keep the leading position in the domestic industry.

            low cement refractory castable (

            Refractory bricks

            Alumina products: high alumina bricks, phosphate bonded aluminum bricks, etc.

            Silica products: silicon bricks, and silica carbide bricks, etc.

            Magnesia materials: magnesia chrome bricks, magnesia carbon bricks, magnesia alumina bricks and spinel bricks, etc.

            Unshaped refractory products: refractory castable, high alumina cement, and calcined bauxite aggregate, etc.

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              customers from Bangladesh


              Strict quality management system: standard of ISO9001

              Technology force: advanced equipment, cooperative relations with multiple scientific research institutes

              Professional sales and after-sales service team: offer consumers the best all-round services in applications, construction and installation, operation and technical training, etc.

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                RS is a professional sillimanite bricks dealer. It provides superior products, professional information and all-around services winning good reputation at home and abroad. And it has obtained the production license issued by the state and participated in the research and set of the refractory materials standard. In order to adapt the market, the company has established long-term stable technical cooperation with colleges and universities.

                Such sillimanite bricks from RS not only for the domestic use, they are also exported to India, Iran, Ireland, Pakistan, Bangladesh, Japan, Greece, Australia, Vietnam, Russia, southeast Asia and other countries and regions.

                Sincerely welcome customers at home and abroad, and start our friendly cooperation in business and technologies, thus to make progress together!

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