Zircar Ceramics APA-1 Alumina Paper

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Zircar Ceramics APA-1 Alumina Paper
Categories:	Ceramic; Oxide; Aluminum Oxide
Material Notes:	ZIRCAR Alumina Papers are uniform structures made principally of alumina fiber. APA-1 is a strong, flexible material with fibers held together with organic binder that is available in roll or sheet form. Applications include thermal insulation in low mass furnaces and thermal process systems operating to 1650°C (3002°F) high temperature gaskets and seals, separator in multifoil vacuum furnace insulation systems, expansion joint insulation, backup thermal insulation in molten metal troughs, furnaces and thermal process systems operating to high temperatures, and parting agent and barrier layer in brazing, heat-treating and metal forming processes. Information provided by Zircar Ceramics.
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Physical Properties	Original Value	Comments

Density	0.150 g/cc @Thickness 1.02 mm
	0.150 g/cc @Thickness 3.05 mm
	0.200 g/cc @Thickness 0.508 mm

Mechanical Properties	Original Value	Comments
Tear Strength	2.60 pli	Parallel to Thickness, width
	1.15 pli @Thickness 0.508 mm
	1.50 pli @Thickness 1.02 mm
	4.60 pli @Thickness 3.05 mm

Thermal Properties	Original Value	Comments
Thermal Conductivity	0.100 W/m-K @Temperature 538 °C
	0.260 W/m-K @Temperature 1370 °C
Maximum Service Temperature, Air	1650 °C

Component Elements Properties	Original Value	Comments
Al2O3	79 % @Thickness 1.02 - 3.05 mm
	85 % @Thickness 0.508 mm
Other	2.0 % @Thickness 0.508 mm	Other Oxides
	<= 4.0 % @Thickness 1.02 - 3.05 mm	Other Oxides
	6.0 % @Thickness 0.508 mm	Organic
	8.0 % @Thickness 1.02 - 3.05 mm	Organic
SiO2	7.0 % @Thickness 0.508 mm
	9.0 % @Thickness 1.02 - 3.05 mm

Descriptive Properties
Color	White
Form	Flexible
Type of Binder	Organic
Weight	100 g/m²	0.02" Thickness
	150 g/m²	0.04" Thickness
	450 g/m²	0.12" Thickness

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CZIR014 / 2822

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