Thermal Ceramics Kaocrete 32-CM Dense Castable

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Thermal Ceramics Kaocrete 32-CM Dense Castable
Categories:	Ceramic; Oxide; Aluminum Oxide
Material Notes:	Kaocrete 32-CM is a 3200°F (1760°C), casting grade, refractory castable with a 70% alumina content. It possesses excellent volume stability and high strength. Features: Recommended use limit up to 3000°F (1649°C) Aggregate chemistry and grain sizing High purity binder systems Installed by cast, gun or plaster Applications: Around water-cooled boiler tubes Boiler ash hoppers Kiln cars Piers Car bottoms Seal tanks in FCCU vessels Burner blocks Ladle metallurgy lance material Information provided by Thermal Ceramics Data has not been recently verified. Please contact manufacturer for current information.
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Physical Properties	Metric	English	Comments

Density	2.276 - 2.452 g/cc	0.08223 - 0.08858 lb/in³	Fired

Mechanical Properties	Metric	English	Comments
Modulus of Rupture	0.00345 - 0.00689 GPa	0.500 - 1.00 ksi	Dried 18-24 hours at 220°F; ASTM C133
	0.00207 - 0.00414 GPa @Treatment Temp. 816 °C, Time 18000 sec	0.300 - 0.600 ksi @Treatment Temp. 1500 °F, Time 5.00 hour	ASTM C133
	0.0103 - 0.0138 GPa @Treatment Temp. 1760 °C, Time 18000 sec	1.50 - 2.00 ksi @Treatment Temp. 3200 °F, Time 5.00 hour	ASTM C133
Compressive Strength	20.1 - 27.6 MPa	2920 - 4000 psi	Fired 5 hours at 1500°F
	24.1 - 29.7 MPa	3500 - 4310 psi	Dried for 18-24 hours at 220°F
	48.3 - 55.2 MPa	7010 - 8010 psi	Fired 5 hours at 3200°F

Thermal Properties	Metric	English	Comments
Thermal Conductivity	1.50 W/m-K @Temperature 1093 °C	10.4 BTU-in/hr-ft²-°F @Temperature 1999 °F
	1.57 W/m-K @Temperature 816 °C	10.9 BTU-in/hr-ft²-°F @Temperature 1500 °F
	1.60 W/m-K @Temperature 538 °C	11.1 BTU-in/hr-ft²-°F @Temperature 1000 °F
	1.67 W/m-K @Temperature 260 °C	11.6 BTU-in/hr-ft²-°F @Temperature 500 °F
Maximum Service Temperature, Air	1760 °C	3200 °F
Shrinkage	-1.50 - 0.00 % @Temperature 1760 °C, Time 18000 sec	-1.50 - 0.00 % @Temperature 3200 °F, Time 5.00 hour	ASTM C113
	0.10 - 0.40 % @Temperature 816 °C, Time 18000 sec	0.10 - 0.40 % @Temperature 1500 °F, Time 5.00 hour	ASTM C113
	0.00 - 0.20 % @Treatment Temp. 104 °C	0.00 - 0.20 % @Treatment Temp. 220 °F	Dried 18-24 hours; ASTM C113

Processing Properties	Metric	English	Comments
Shelf Life	12.0 Month	12.0 Month

Component Elements Properties	Metric	English	Comments
Al2O3	70 %	70 %
Alkalis	0.20 %	0.20 %
CaO	2.4 %	2.4 %
Fe2O3	0.90 %	0.90 %
MgO	0.10 %	0.10 %
SiO2	25 %	25 %
TiO2	1.8 %	1.8 %

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.

CTHERM038 / 2358

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