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Elmet Technologies

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Thermal Ceramics BTU-Block 1807/18 Board
Categories: Ceramic

Material Notes: BTU-Block products are a family of microporous insulation designed for use in high temperature industrial applications. Microporous insulation is a very high thermal efficiency material which has a thermal conductivity less than that of still air. These materials, consisting of fine diameter heat resistant particles, reinforcement fibers, and high temperature radiation blockers, address the primary modes of heat transfer in a novel way compared to traditional refractories. These components are appropriately sized and configured to create a microporous structure. This structure limits the number and movements of air particles, and creates a material of exceptionally low thermal conductivity. At elevated temperatures, the radiation blockers are employed to minimize radiation heat transfer by again proper sizing and distribution.

Features:

  • Extremely low thermal conductivity and heat loss
  • High compressive strength
  • Easily configured to shape
  • Use limit of 1800°F (982°C)
  • Applications:

  • Back-up insulation on high temperature furnaces
  • Commercial ovens
  • Hobby kilns
  • Electric thermal storage units
  • Commercial OEM products
  • Hand held appliances
  • Data recorders
  • Fire barrier in document protection applications
  • Information provided by Thermal Ceramics

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

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    Physical PropertiesOriginal ValueComments
    Density 0.288 g/cc
     
    Mechanical PropertiesOriginal ValueComments
    Compressive Yield Strength 0.345 MPaResistance to compression at 10% deformation; 18 pcf; ASTM C165
     0.862 MPaResistance to compression at 25% deformation; 18 pcf; ASTM C165
     2.59 MPaResistance to compression at 50% deformation; 18 pcf; ASTM C165
     
    Thermal PropertiesOriginal ValueComments
    Thermal Conductivity 0.160 BTU-in/hr-ft²-°F
    @Temperature 260 °C
    ASTM C210
     0.210 BTU-in/hr-ft²-°F
    @Temperature 538 °C
    ASTM C210
     0.300 BTU-in/hr-ft²-°F
    @Temperature 816 °C
    ASTM C210
    Maximum Service Temperature, Air 1800 °F
    Shrinkage 0.30 %
    @Temperature 538 °C,
    Time 86400 sec
    ASTM C356
     0.60 %
    @Temperature 816 °C,
    Time 86400 sec
    ASTM C356
     1.3 %
    @Temperature 954 °C,
    Time 86400 sec
    ASTM C356

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    CTHERM202 / 2522

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