Thermal Ceramics Kaolite 2500-EXHS Gunning Insulation Castables

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Thermal Ceramics Kaolite 2500-EXHS Gunning Insulation Castables
Categories:	Ceramic; Oxide
Material Notes:	Kaolite 2500 EXHS is an extra high-strength castable designed for temperatures up to 2500°F (1371°C). It has excellent thermal stability throughout its temperature use range. 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	1.33 - 1.426 g/cc	0.0480 - 0.05152 lb/in³	Fired at 1500°F
	1.346 - 1.506 g/cc	0.04863 - 0.05441 lb/in³	Fired at 2500°F

Mechanical Properties	Metric	English	Comments
Modulus of Rupture	0.00276 - 0.00414 GPa	0.400 - 0.600 ksi	Dried 18-24 hours at 220°F; ASTM C133
	0.00259 - 0.00414 GPa @Treatment Temp. 816 °C, Time 18000 sec	0.375 - 0.600 ksi @Treatment Temp. 1500 °F, Time 5.00 hour	ASTM C133
	0.00345 - 0.00517 GPa @Treatment Temp. 1370 °C, Time 18000 sec	0.500 - 0.750 ksi @Treatment Temp. 2500 °F, Time 5.00 hour	ASTM C133
Compressive Strength	6.89 - 11.03 MPa	999 - 1600 psi	Fired 5 hours at 1500°F
	7.58 - 12.41 MPa	1100 - 1800 psi	Fired 5 hours at 2500°F
	11.72 - 16.55 MPa	1700 - 2400 psi	Dried for 18-24 hours at 220°F

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	1370 °C	2500 °F
Shrinkage	-0.500 - 0.50 % @Temperature 1370 °C, Time 18000 sec	-0.500 - 0.50 % @Temperature 2500 °F, Time 5.00 hour	ASTM C113
	0.20 - 0.50 % @Temperature 816 °C, Time 18000 sec	0.20 - 0.50 % @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	42 %	42 %
Alkalis	0.70 %	0.70 %
CaO	16 %	16 %
Fe2O3	2.5 %	2.5 %
MgO	0.10 %	0.10 %
SiO2	37 %	37 %
TiO2	1.0 %	1.0 %

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CTHERM048 / 2368

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