Thermal Ceramics Firebrick SR-99 LS

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Thermal Ceramics Firebrick SR-99 LS
Categories:	Ceramic; Oxide; Aluminum Oxide
Material Notes:	The SR-90, SR-99, and SR-99 firebricks are premium high alumina firebricks that are capable of handling very difficult applications. These premium bricks are very dense and have excellent load bearing strength at temperatures above 3000°F (1649°C) and they provide excellent thermal shock resistance. The extremely low silica content of both products make them ideal for hydrogen atmospheres. Features: 90 and 99% alumina firebrick Excellent low SiO2 contents for use in Hydrogen atmospheres Excellent high temperature stability Extremely high service temperature Applications: Sulphur recovery units Incinerators Secondary ammonia reformers 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	3.093 g/cc	0.1117 lb/in³
Deformation	0.70 %	0.70 %	at 10 psi; 100 hours at 2640°F

Mechanical Properties	Metric	English	Comments
Modulus of Rupture	0.00552 GPa @Temperature 1430 °C	0.800 ksi @Temperature 2600 °F
	0.0138 GPa @Temperature 1260 °C	2.00 ksi @Temperature 2300 °F
	0.0290 GPa @Temperature 23.0 °C	4.20 ksi @Temperature 73.4 °F
Compressive Strength	82.76 MPa	12000 psi

Thermal Properties	Metric	English	Comments
Thermal Conductivity	2.75 W/m-K @Temperature 1370 °C	19.1 BTU-in/hr-ft²-°F @Temperature 2500 °F	ASTM C201
	3.11 W/m-K @Temperature 1090 °C	21.6 BTU-in/hr-ft²-°F @Temperature 2000 °F	ASTM C201
	3.67 W/m-K @Temperature 816 °C	25.5 BTU-in/hr-ft²-°F @Temperature 1500 °F	ASTM C201
	4.42 W/m-K @Temperature 538 °C	30.7 BTU-in/hr-ft²-°F @Temperature 1000 °F	ASTM C201
	5.61 W/m-K @Temperature 260 °C	38.9 BTU-in/hr-ft²-°F @Temperature 500 °F	ASTM C201
Maximum Service Temperature, Air	1650 °C	3000 °F
Shrinkage	-0.170 % @Temperature 1760 °C, Time 18000 sec	-0.170 % @Temperature 3200 °F, Time 5.00 hour
	0.60 % @Temperature 1760 °C, Time 259000 sec	0.60 % @Temperature 3200 °F, Time 72.0 hour

Component Elements Properties	Metric	English	Comments
Al2O3	99.5 %	99.5 %
Alkalis	0.20 %	0.20 %
CaO	0.20 %	0.20 %
SiO2	0.10 %	0.10 %

Descriptive Properties
Fe₂O₃	traces
MgO Content	traces

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CTHERM126 / 2446

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