Unifrax Fiberfrax® Durablanket® S Ceramic Fiber Insulator

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Unifrax Fiberfrax® Durablanket® S Ceramic Fiber Insulator
Categories:	Ceramic; Oxide; Aluminum Oxide; Silicon Oxide
Material Notes:	Fiberfrax Durablanket S insulation is a strong, lightweight, flexible needled blanket that is made from spun ceramic fibers. Available in a wide variety of thicknesses, widths and densities, Durablanket S insulation provides an array of proven solutions for a broad spectrum of application problems. Typical Applications Furnace, kiln, reformer and boiler linings Investment casting mold wrappings Removable insulating blankets for stress relieving welds Reusable insulation for steam and gas turbines Flexible high-temperature pipe insulation Pressure and cryogenic vessel fire protection High-temperature kiln and furnace insulation Furnace door linings and seals Soaking pit seals Furnace repairs Thermal reactor insulation Expansion joint seals Primary reformer header insulation Incineration equipment and stack linings Annealing cover seals High-temperature filtration Nuclear insulation applications Atmosphere furnace lining Field steam generator lining Information Provided by Unifrax I LLC
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Physical Properties	Original Value	Comments

Specific Gravity	2.73 g/cc
Density	4.00 lb/ft³	Available
	6.00 lb/ft³	Available
	8.00 lb/ft³	Available

Mechanical Properties	Original Value	Comments
Tensile Strength, Yield	4.00 psi	at 4 PCF; ASTM 686-76
	6.00 psi	at 6 PCF; ASTM 686-76
	7.00 psi	at 8 PCF; ASTM 686-76

Thermal Properties	Original Value	Comments
Specific Heat Capacity	1.13 J/g-°C @Temperature 1093 °C
Melting Point	1760 °C
Maximum Service Temperature, Air	1177 °C	Recommended Operating Temperature

Component Elements Properties	Original Value	Comments
Al2O3	43 - 47 %
Alkalis	0.050 %
SiO2	53 - 57 %

Descriptive Properties
Average Fiber Diameter (microns)	2.5-3.5
Color	White
Fiber Diameter (microns)	2.5-3.5
Leachable Chlorides (ppm)	<10
Na₂O₃ (%)	<0.5
Other Inorganics (%)	0.85
Temperature Grade (°C)	1260

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CUNIF019 / 97791

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