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Insulating Fire Brick

Temperature Grade

1260°C (2300°F) - 1760°C (3200°F)

Chemistry

alumina, silica

CCEFIRE® DJM Insulating Fire Brick is widely used as a hot face refractory lining or backup insulation in various industrial furnaces. It can be customized to specific dimensions for standard, special shapes, and refractory insulation products for specific areas such as kiln mouths.

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CCEFIRE® DJM Insulating Fire Brick


CCEFIRE® DJM Series Mullite insulation brick is a new type of refractory material, which can directly contact with fire, characterized with high temperature resistance, lightweight, low thermal conductivity, good energy saving effect, specially suitable for cracking furnace, hot blast furnace, ceramic roller kiln, porcelain kiln extraction, glass crucible and various electric furnaces as lining. It is an ideal product of energy efficiency and longevity. 

Benefits

  • Superior Insulation Performance

    CCEFIRE® insulating fire bricks feature low thermal conductivity, effectively blocking heat transfer and delivering outstanding insulation performance.

  • Precise Dimensions

    Accurate external dimensions facilitate faster bricklaying, reduce the use of refractory mortar, ensure the strength and stability of masonry, and extend the service life of the lining.

  • Fire Resistance

    CCEFIRE® insulating fire bricks offer excellent fire resistance, maintaining stability in high-temperature environments and providing added safety in the event of a fire.

  • Customizable Products

    These bricks can be processed into special shapes to minimize the number of bricks and joints required.

Features of DJM Insulating Fire Brick


  • Low Thermal Conductivity for Superior Insulation

    Provides excellent thermal insulation, minimizing heat transfer and improving energy efficiency.

  • Low Heat Capacity for Energy Savings

    Stores minimal heat, reducing energy consumption during intermittent operations.

  • Low Impurity Content for High Refractory Performance

    Low iron and alkali content enhances heat resistance, while high aluminum content ensures stability in reducing atmospheres.

  • High Compressive Strength at Elevated Temperatures

    Maintains structural integrity and durability under high-temperature conditions.

  • Accurate Dimensions for Efficient Installation

    Speeds up installation, reduces mortar usage, and ensures stable, long-lasting brickwork.

  • Customizable Shapes to Reduce Joints

    Can be shaped into special forms, minimizing the number of bricks and joints, improving overall stability.

Application of DJM Insulating Fire Brick


Highly efficient energy-saving solutions

Mullite insulation brick can be directly used for high temperature furnace lining; Mullite insulation brick has been widely used in shuttle kiln, roller kiln, glass and petrochemical furnace lining.
Mullite insulation brick is a kind of high-alumina refractories with mullite (3Al2O3·2SiO2) as its main crystal phase.

Specifications & Sizes

CCEFIRE ® DJM Insulating Fire brick
Item DJM23C DJM-23 DJM-24 DJM-26 DJM-28 DJM-30 DJM-32
Classification Temp(℃) 1260 1260 1300 1430 1540 1650 1760
Bulk Density(g/cm3) 0.5 0.6 0.7 0.8 0.9 1 1.25
Crushing Strength(MPa) 1.2 1.2 1.4 1.6 2.1 2.5 3.5
Modulus of Rupture(MPa) 1 0.9 1.2 1.4 1.6 2.1 2.1
Permanent linear change (CT-30℃x24h)% 0.5 0.5 0.6 0.4 0.5 0.9 0.9
Reversible thermal expansion at 1100℃ 0.5 0.5 0.6 0.7 0.8 0.9 1.1
Thermal conductivity (W/m.k) 400 ℃ 0.12 0.12 0.14 0.27 0.32 0.41 0.49
600 ℃ 0.14 0.14 0.16 0.29 0.34 0.43 0.5
800 ℃ 0.16 0.17 0.18 0.31 0.36 0.44 0.51
1000 ℃ 0.18 0.19 0.2 0.33 0.38 0.45 0.53
1200 ℃ - - - 0.3 0.41 0.47 0.56
Chemical Analysis(%) Al2O3 37 37 44.5 58 67 73 77
Si02 47 44.4 41.2 39.1 31 25.1 21.5
Fe2O3 0.7 0.7 0.7 0.7 0.6 0.5 0.4
Common size 230 x 114 x 65/75mm | 9 ”x 4.5” x 2.5”/3”
or customized size

Custom size are available.Contact Us

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Adhere to Strict Quality Control System

CCEWOOL® products have won a number of authoritative certifications, including rach certification, Fraunhofer laboratory certification and CE certification, which fully prove the excellent quality of our products. These certificates are not only a strong guarantee of the quality of our products, but also ensure a worry-free process for your order. If you need to know more certification details or request relevant certificates, please feel free to contact us!

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    Our warehouses located in Charlotte, USA, and Toronto, Canada, are well-equipped with ample stock, enabling us to offer efficient and convenient delivery options to our customers throughout North America

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