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Specialty Compounds RTP Company

Thermal Ceramics Kaolite 1800 Super Lightweight Insulating Castables
Categories: Ceramic; Oxide

Material Notes: Super lightweight Kaolite castables reduce both the quantity of heat storage and heat transfer through the lining producing significant savings in furnace fuel consumption. The lower densities of these vermiculite based Kaolite castables reduce the amount of supporting furnace steel work required and provide more insulation with a thinner lining. These products can be cast, poured, or gunited.

Kaolite 1800 is a super lightweight, low thermal conductivity vermiculite castable designed for both backup insulation and some hot face applications up to 1800°F. Kaolite 1800 contains a calcium-aluminate cement which gives it better high-temperature stability when compared to Kaolite 1600. ovens and ductwork lining.

Information provided by Thermal Ceramics

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

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Physical PropertiesMetricEnglishComments
Density 0.320 - 0.400 g/cc0.0116 - 0.0145 lb/in³Available in multiple densities, fired at 1500°F
 0.464 - 0.609 g/cc0.0168 - 0.0220 lb/in³Available in multiple densities, fired at 1500°F
 
Mechanical PropertiesMetricEnglishComments
Modulus of Rupture 0.000172 - 0.000276 GPa0.0250 - 0.0400 ksiDried 18-24 hours at 220°F, cast; ASTM C133
 0.000345 - 0.000689 GPa0.0500 - 0.100 ksiDried 18-24 hours at 220°F, gunned; ASTM C133
 0.000172 - 0.000276 GPa
@Treatment Temp. 982 °C,
Time 18000 sec
0.0250 - 0.0400 ksi
@Treatment Temp. 1800 °F,
Time 5.00 hour
cast; ASTM C133
 0.000207 - 0.000345 GPa
@Treatment Temp. 816 °C,
Time 18000 sec
0.0300 - 0.0500 ksi
@Treatment Temp. 1500 °F,
Time 5.00 hour
cast; ASTM C133
 0.000241 - 0.000379 GPa
@Treatment Temp. 982 °C,
Time 18000 sec
0.0350 - 0.0550 ksi
@Treatment Temp. 1800 °F,
Time 5.00 hour
gunned; ASTM C133
 0.000276 - 0.000414 GPa
@Treatment Temp. 816 °C,
Time 18000 sec
0.0400 - 0.0600 ksi
@Treatment Temp. 1500 °F,
Time 5.00 hour
gunned; ASTM C133
Compressive Strength 0.240 - 0.340 MPa34.8 - 49.3 psiDried for 18-24 hours at 220°F cast
 0.270 - 0.410 MPa39.2 - 59.5 psiFired 5 hours at 1800°F cast
 0.340 - 0.550 MPa49.3 - 79.8 psiFired 5 hours at 1500°F cast
 0.410 - 0.550 MPa59.5 - 79.8 psiFired 5 hours at 1800°F gunned
 0.550 - 0.760 MPa79.8 - 110 psiFired 5 hours at 1500°F gunned
 0.480 - 0.830 MPa69.6 - 120 psiDried for 18-24 hours at 220°F gunned
 
Thermal PropertiesMetricEnglishComments
Thermal Conductivity  0.114 W/m-K
@Temperature 260 °C
0.790 BTU-in/hr-ft²-°F
@Temperature 500 °F
cast; ASTM C417
 0.134 W/m-K
@Temperature 260 °C
0.930 BTU-in/hr-ft²-°F
@Temperature 500 °F
gunned; ASTM C417
 0.137 W/m-K
@Temperature 538 °C
0.950 BTU-in/hr-ft²-°F
@Temperature 1000 °F
cast; ASTM C417
 0.153 W/m-K
@Temperature 538 °C
1.06 BTU-in/hr-ft²-°F
@Temperature 1000 °F
gunned; ASTM C417
 0.160 W/m-K
@Temperature 816 °C
1.11 BTU-in/hr-ft²-°F
@Temperature 1500 °F
cast; ASTM C417
 0.182 W/m-K
@Temperature 816 °C
1.26 BTU-in/hr-ft²-°F
@Temperature 1500 °F
gunned; ASTM C417
Maximum Service Temperature, Air 982 °C1800 °F
Shrinkage 0.00 - 0.00 %0.00 - 0.00 %
 0.50 - 1.5 %
@Temperature 816 °C,
Time 18000 sec
0.50 - 1.5 %
@Temperature 1500 °F,
Time 5.00 hour
ASTM C113
 1.5 - 2.5 %
@Temperature 982 °C,
Time 18000 sec
1.5 - 2.5 %
@Temperature 1800 °F,
Time 5.00 hour
ASTM C113
 
Processing PropertiesMetricEnglishComments
Shelf Life 12.0 Month12.0 Month
 
Component Elements PropertiesMetricEnglishComments
Al2O3 29 %29 %
Alkalis 3.4 %3.4 %
CaO 14 %14 %
Fe2O3 7.0 %7.0 %
MgO 12 %12 %
SiO2 32 %32 %
TiO2 2.3 %2.3 %

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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