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Thermal Ceramics Pyro-Log R Fiber
Categories: Ceramic; Oxide; Silicon Oxide

Material Notes: Pyro-Log is an uncompressed monolithic mass of ceramic fiber. Pyro-Log fiber is available in 6" and 8" (152 mm to 203 mm) thicknesses with densities up to 15 pcf (240 kg/m3). Manufactured in three temperature grades, R, ZR and C, the Pyro-Log fiber can be used in a wide range of applications. Pyro-Log fiber is the basic building block for all Pyro-Bloc applications.

All Pyro-Log fiber is produced with a special lubricant that allows the fibers to be intensely needled to attain densities up to 15 pcf (240 kg/m 3). This lubricant also adds pliability which allows true multidirectional compression during installation. At moderate temperatures this lubricant burns out and the fiber becomes rigid enough to stand on. This feature, unique to Pyro-Log fiber, assists during installation and provides the durability and toughness necessary for long life.

Features:

  • Monolithic log of 6” to 8” (152 mm to 203 mm) thick refractory ceramic fiber
  • Available densities up to 15 pcf (240 kg/m3)
  • Fully needled - no adhesives
  • Applications:

  • Low mass kiln cars
  • Fired heater floors
  • Back up insulation for insulating firebrick and castable lining
  • Fill gaps or small spaces where standard shapes are not practical
  • 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 0.128 g/ccAvailable in multiple densities
     0.160 g/ccAvailable in multiple densities
     0.192 g/ccAvailable in multiple densities
     0.240 g/ccAvailable in multiple densities
     
    Thermal PropertiesOriginal ValueComments
    Thermal Conductivity 0.490 BTU-in/hr-ft²-°F
    @Temperature 260 °C
    15 pcf; ASTM C201
     0.500 BTU-in/hr-ft²-°F
    @Temperature 260 °C
    12 pcf; ASTM C201
     0.520 BTU-in/hr-ft²-°F
    @Temperature 260 °C
    10 pcf; ASTM C201
     0.530 BTU-in/hr-ft²-°F
    @Temperature 260 °C
    8 pcf; ASTM C201
     0.840 BTU-in/hr-ft²-°F
    @Temperature 538 °C
    15 pcf; ASTM C201
     0.960 BTU-in/hr-ft²-°F
    @Temperature 538 °C
    12 pcf; ASTM C201
     1.04 BTU-in/hr-ft²-°F
    @Temperature 538 °C
    10 pcf; ASTM C201
     1.13 BTU-in/hr-ft²-°F
    @Temperature 538 °C
    8 pcf; ASTM C201
     1.43 BTU-in/hr-ft²-°F
    @Temperature 816 °C
    15 pcf; ASTM C201
     1.66 BTU-in/hr-ft²-°F
    @Temperature 816 °C
    12 pcf; ASTM C201
     1.81 BTU-in/hr-ft²-°F
    @Temperature 816 °C
    10 pcf; ASTM C201
     1.97 BTU-in/hr-ft²-°F
    @Temperature 816 °C
    8 pcf; ASTM C201
     2.19 BTU-in/hr-ft²-°F
    @Temperature 1090 °C
    15 pcf; ASTM C201
     2.45 BTU-in/hr-ft²-°F
    @Temperature 1090 °C
    12 pcf; ASTM C201
     2.69 BTU-in/hr-ft²-°F
    @Temperature 1090 °C
    10 pcf; ASTM C201
     2.95 BTU-in/hr-ft²-°F
    @Temperature 1090 °C
    8 pcf; ASTM C201
    Melting Point 3200 °F
    Maximum Service Temperature, Air 2200 °FContinuous
     2400 °FRating
     
    Component Elements PropertiesOriginal ValueComments
    Al2O3 47 %
    SiO2 53 %
     
    Descriptive Properties
    Other Element Contenttraces

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    CTHERM078 / 2398

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