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Ensinger PEI

Thermal Ceramics JM-30 High Temperature Insulating Firebrick
Categories: Ceramic; Oxide; Aluminum Oxide

Material Notes: The bond developed is a ceramic bond that is formed by high temperature firing. This produces bricks that are very stable and strong at temperatures higher than 2600°F (1427°C).

Features:

  • High temperature insulating firebrick with use limits up to 3250°F (1788°C)
  • Excellent strength and thermal stability
  • Low heat storage
  • High purity
  • Excellent thermal conductivity
  • Applications:

  • Atmosphere furnace
  • Forge furnaces
  • Ethylene furnace sidewalls
  • Ceramic kilns
  • High temperature back-up insulation
  • Carbon baking furnaces
  • High temperature kiln linings
  • Removable furnace doors
  • Information provided by Thermal Ceramics

    Data has not been recently verified. Please contact manufacturer for current information.

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    Physical PropertiesMetricEnglishComments
    Density 1.041 g/cc0.03761 lb/in³
    Deformation 0.30 %0.30 %at 10 psi; 1.5 hours at 2400°F
     
    Mechanical PropertiesMetricEnglishComments
    Modulus of Rupture 0.00172 GPa0.250 ksi
    Compressive Strength 3.03 MPa439 psi
     
    Thermal PropertiesMetricEnglishComments
    Thermal Conductivity  0.403 W/m-K
    @Temperature 260 °C
    2.80 BTU-in/hr-ft²-°F
    @Temperature 500 °F
    ASTM C201
     0.418 W/m-K
    @Temperature 538 °C
    2.90 BTU-in/hr-ft²-°F
    @Temperature 1000 °F
    ASTM C201
     0.447 W/m-K
    @Temperature 816 °C
    3.10 BTU-in/hr-ft²-°F
    @Temperature 1500 °F
    ASTM C201
     0.476 W/m-K
    @Temperature 1090 °C
    3.30 BTU-in/hr-ft²-°F
    @Temperature 2000 °F
    ASTM C201
    Maximum Service Temperature, Air 1430 °C2600 °F
    Shrinkage -0.700 %
    @Temperature 1620 °C,
    Time 86400 sec
    -0.700 %
    @Temperature 2950 °F,
    Time 24.0 hour
     
    Component Elements PropertiesMetricEnglishComments
    Al2O3 69.9 %69.9 %
    Alkalis 0.20 %0.20 %
    CaO 0.20 %0.20 %
    Fe2O3 0.30 %0.30 %
    MgO 0.10 %0.10 %
    SiO2 28.1 %28.1 %
    TiO2 1.2 %1.2 %

    Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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    CTHERM132 / 2452

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