Thermal Ceramics Kaocrete HPM 90 Ultra High Strength Castables

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Thermal Ceramics Kaocrete HPM 90 Ultra High Strength Castables
Categories:	Ceramic; Oxide; Aluminum Oxide
Material Notes:	Kaocrete HPM 90 is a 93%-alumina product designed for extremely rugged applications requiring hot strength and excellent load bearing characteristics. At 190 pcf density, Kaocrete HPM 90 is comparable to pressed high-alumina brick, with actual hot strengths at intermediate temperatures superior to a 90%-alumina brick. Features: Provide 2 to 3 times greater strengths than standard castables with similar densities Superb resistance to abrasion or mechanical impact Excellent thermal shock resistance Resistant to slag or metal contact Stronger bond formed when heated Porosity rivals that of dense firebrick All water used in casting is removed once monolithic reaches 350°F (177°C) 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	2.901 - 3.061 g/cc	0.1048 - 0.1106 lb/in³	Fired
Deformation	0.60 %	0.60 %	load-25 psi, 1.5 hours at 2640°F; ASTM C16

Mechanical Properties	Metric	English	Comments
Modulus of Rupture	0.0110 - 0.0165 GPa	1.60 - 2.40 ksi	Dried 18-24 hours at 220°F; ASTM C133
	0.0110 - 0.0165 GPa @Treatment Temp. 816 °C, Time 18000 sec	1.60 - 2.40 ksi @Treatment Temp. 1500 °F, Time 5.00 hour	ASTM C133
Compressive Strength	69.0 - 90.0 MPa	10000 - 13100 psi	Dried for 18-24 hours at 220°F
	79.0 - 103 MPa	11500 - 14900 psi	Fired 5 hours at 1500°F; ASTM C133
	97.0 - 124 MPa	14100 - 18000 psi	Fired 5 hours at 3400°F
Abrasion	5.0 - 8.0	5.0 - 8.0	loss, cc`s; Fired 5 hours at 1500°F; ASTM C704

Thermal Properties	Metric	English	Comments
Thermal Conductivity	2.67 W/m-K @Temperature 1090 °C	18.5 BTU-in/hr-ft²-°F @Temperature 2000 °F	ASTM C417
	2.88 W/m-K @Temperature 816 °C	20.0 BTU-in/hr-ft²-°F @Temperature 1500 °F	ASTM C417
	3.31 W/m-K @Temperature 538 °C	23.0 BTU-in/hr-ft²-°F @Temperature 1000 °F	ASTM C417
	4.08 W/m-K @Temperature 260 °C	28.3 BTU-in/hr-ft²-°F @Temperature 500 °F	ASTM C417
Maximum Service Temperature, Air	1870 °C	3400 °F
Shrinkage	0.10 - 0.30 % @Temperature 816 °C, Time 18000 sec	0.10 - 0.30 % @Temperature 1500 °F, Time 5.00 hour	ASTM C113
	0.50 - 1.5 % @Temperature 1870 °C, Time 18000 sec	0.50 - 1.5 % @Temperature 3400 °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	93 %	93 %
Alkalis	0.40 %	0.40 %
CaO	1.5 %	1.5 %
Fe2O3	0.10 %	0.10 %
SiO2	5.0 %	5.0 %

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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