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Skamol Group Moler SUPRA Insulating Block
Categories: Ceramic; Oxide; Silicon Oxide

Material Notes: SKAMOL Moler insulating bricks & blocks have the following characteristics:
  • Max. service temperature: Up to 1000°C (1832°F)
  • Back-up insulation
  • Excellent insulating properties
  • High mechanical strength
  • Light weight
  • Good thermal shock resistance
  • Increasing strength at rising temperatures
  • High content of amorphous silica accounting for an increased viscosity being induced into attacking slags or melts
  • Non-wetting to molten aluminum and other metals
  • A wide range of bricks and blocks in various combinations of bulk density, thermal conductivity and crushing strength
  • Primarily used for back-up insulation, typically in industrial furnaces behind a refractory lining.

Information provided by Skamol.

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Physical PropertiesOriginal ValueComments
Bulk Density 47.0 lb/ft³Dry
Loss On Ignition 1.5 %
@Temperature 1025 °C
Porosity 68 %Total
Permeability 2.0nPm, Permeability to Air; BS EN 993-4: 1995
 
Mechanical PropertiesOriginal ValueComments
Modulus of Rupture 0.00180 GPaEN 993-6: 1995
Compressive Strength 7.00 MPaEN 1094-5: 1995
 
Thermal PropertiesOriginal ValueComments
CTE, linear 2.00 µm/m-°C
@Temperature 20.0 - 750 °C
BS 1902: section 5.3: 1990
Specific Heat Capacity 0.800 J/g-°C
Thermal Conductivity 0.130 W/m-K
@Temperature 200 °C
Mean temp.; ASTM C-182
 0.140 W/m-K
@Temperature 400 °C
ASTM C-182
 0.150 W/m-K
@Temperature 600 °C
ASTM C-182
Maximum Service Temperature, Air 900 °C
Shrinkage 1.0 %
@Temperature 1000 °C,
Time 43200 sec
Linear Reheat Shrinkage; EN 1094-6: 1999
 
Component Elements PropertiesOriginal ValueComments
Al2O3 9.0 %
CaO 0.80 %
Fe2O3 7.0 %
K2O 1.6 %
MgO 1.3 %
Na2O 0.40 %
SiO2 77 %
SO3 1.2 %
TiO2 0.70 %
 
Descriptive Properties
ColorRed
Creep in Compression1.4%BS EN 993-9: 1997, after fluoride gas exposure, 50h at 800°C (1472°F), load 0.1 MPa (14.5 psi)
Pyrometric Cone Equivalent1350°CASTM C24-89, ORTON cones
Resistance to Thermal ShockMin 30 cyclesEN 993-11: 1998, heating to 950°C (1742°F)

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CSKAM009 / 2160

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