Mullite Insulation Bricks
  • Mullite Insulation Bricks
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Mullite Insulation Bricks

Mullite insulating bricks are insulating refractory material primarily composed of mullite. It features high refractoriness, low thermal conductivity, and excellent thermal shock resistance. It is widely used in high-temperature insulation applications in industries such as steel, glass, ceramics, and cement. · High Refractoriness: Suitable for high-temperature environments due to its high refractoriness. · Low Thermal Conductivity: Excellent thermal insulation properties, effectively reducing heat transfer. · Good Thermal Shock Resistance: Capable of withstanding rapid temperature changes, minimizing thermal shock damage.

  • Product Detail
    • Applications and Equipment:

    Steel Industry: Used in the high-temperature insulation layers of blast furnaces and hot blast stoves.

    Glass Industry: Applied in high-temperature insulation areas of glass furnaces.

    Ceramics Industry: Used in the high-temperature insulation layers of ceramic kilns.

    Cement Industry: Utilized in high-temperature insulation areas of cement rotary kilns.

    • Parameters of Mullite Insulation Bricks:

    Item/Grade

    MIB-23

    Type

    A

    B

    C

    D

    Al2O3, %

    ≥42

    ≥42

    ≥45

    ≥48

    Fe2O3, %

    ≤1.2

    ≤1.2

    ≤1.0

    ≤1.0

    Bulk Density, g/cm³

    0.55

    0.6

    0.8

    1.00

    Reheating Linear Change, %

    ≤-0.5

    ≤-0.55

    ≤-0.4

    ≤-0.3

    Temperature*12h

    1230℃

    1260℃

    1300℃

    1300℃

    Cold Crushing Strength, MPa

    ≥1.2

    ≥1.5

    ≥2.3

    ≥3

    Thermal Conductivity 350℃, W/(m·K)

    0.17

    0.19

    0.24

    0.31


    Item/Grade

    MIB-26

    Type

    A

    B

    C

    D

    Al2O3, %

    ≥54

    ≥55

    ≥56

    ≥56

    Fe2O3, %

    ≤0.9

    ≤0.9

    ≤1.0

    ≤1.0

    Bulk Density, g/cm³

    0.7

    0.8

    0.9

    1.0

    Reheating Linear Change, %

    ≤-1

    ≤-0.65

    ≤-0.5

    ≤-0.5

    Temperature*12h

    1400℃

    Cold Crushing Strength, MPa

    ≥2

    ≥2.3

    ≥2.8

    ≥3.2

    Thermal Conductivity 350℃, W/(m·K)

    0.21

    0.25

    0.3

    0.32


    Item/Grade

    MIB-28

    MIB-30

    Type

    A

    B

    C

    A

    B

    Al2O3, %

    ≥64

    ≥65

    ≥66

    ≥72

    ≥72

    Fe2O3, %

    ≤0.75

    ≤0.65

    ≤0.65

    ≤0.55

    ≤0.55

    Bulk Density, g/cm³

    0.8

    0.9

    1.0

    1.0

    1.1

    Reheating Linear Change, %

    ≤-1

    ≤-0.8

    ≤-0.7

    ≤-0.9

    ≤-0.7

    Temperature*12h

    1500℃

    1600℃

    Cold Crushing Strength, MPa

    ≥2.3

    ≥2.8

    ≥3.3

    ≥3.0

    ≥3.5

    Thermal Conductivity 350℃, W/(m·K)

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    • Applications and Equipment:

    Steel Industry: Used in the high-temperature insulation layers of blast furnaces and hot blast stoves.

    Glass Industry: Applied in high-temperature insulation areas of glass furnaces.

    Ceramics Industry: Used in the high-temperature insulation layers of ceramic kilns.

    Cement Industry: Utilized in high-temperature insulation areas of cement rotary kilns.

    • Parameters of Mullite Insulation Bricks:

    Item/Grade

    MIB-23

    Type

    A

    B

    C

    D

    Al2O3, %

    ≥42

    ≥42

    ≥45

    ≥48

    Fe2O3, %

    ≤1.2

    ≤1.2

    ≤1.0

    ≤1.0

    Bulk Density, g/cm³

    0.55

    0.6

    0.8

    1.00

    Reheating Linear Change, %

    ≤-0.5

    ≤-0.55

    ≤-0.4

    ≤-0.3

    Temperature*12h

    1230℃

    1260℃

    1300℃

    1300℃

    Cold Crushing Strength, MPa

    ≥1.2

    ≥1.5

    ≥2.3

    ≥3

    Thermal Conductivity 350℃, W/(m·K)

    0.17

    0.19

    0.24

    0.31


    Item/Grade

    MIB-26

    Type

    A

    B

    C

    D

    Al2O3, %

    ≥54

    ≥55

    ≥56

    ≥56

    Fe2O3, %

    ≤0.9

    ≤0.9

    ≤1.0

    ≤1.0

    Bulk Density, g/cm³

    0.7

    0.8

    0.9

    1.0

    Reheating Linear Change, %

    ≤-1

    ≤-0.65

    ≤-0.5

    ≤-0.5

    Temperature*12h

    1400℃

    Cold Crushing Strength, MPa

    ≥2

    ≥2.3

    ≥2.8

    ≥3.2

    Thermal Conductivity 350℃, W/(m·K)

    0.21

    0.25

    0.3

    0.32


    Item/Grade

    MIB-28

    MIB-30

    Type

    A

    B

    C

    A

    B

    Al2O3, %

    ≥64

    ≥65

    ≥66

    ≥72

    ≥72

    Fe2O3, %

    ≤0.75

    ≤0.65

    ≤0.65

    ≤0.55

    ≤0.55

    Bulk Density, g/cm³

    0.8

    0.9

    1.0

    1.0

    1.1

    Reheating Linear Change, %

    ≤-1

    ≤-0.8

    ≤-0.7

    ≤-0.9

    ≤-0.7

    Temperature*12h

    1500℃

    1600℃

    Cold Crushing Strength, MPa

    ≥2.3

    ≥2.8

    ≥3.3

    ≥3.0

    ≥3.5

    Thermal Conductivity 350℃, W/(m·K)

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