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Ensinger PEI

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Unifrax Fiberfrax® 880 Ceramic Fiber Paper
Categories: Ceramic; Oxide; Aluminum Oxide; Silicon Oxide

Material Notes: 880 paper is made from a higher alumina content, shorter, smaller diameter fiber and laid up at higher densities. These product parameters lead to reduced shrinkage, higher strength, an increased operating temperature range and better chemical resistivity. This product is used in appications where the service life of standard ceramic fiber papers is reduced.

Information Provided by Unifrax I LLC

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Physical PropertiesOriginal ValueComments
Density 18.0 lb/ft³
Loss On Ignition 8.0 %including binder
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength at Break 37.0 psiAs manufactured
Tensile Strength, Yield 136 psiAs manufactured
Compressive Strength 3.00 psi10% deformation
 16.0 psi25% deformation
 44.0 psi50% deformation
 
Thermal PropertiesOriginal ValueComments
Melting Point 1927 °C
Maximum Service Temperature, Air 1150 °CRecommended Operating Temperature
 
Component Elements PropertiesOriginal ValueComments
Al2O3 58 - 60 %
Fe2O3 <= 0.10 %
SiO2 40 - 42 %
 
Descriptive Properties
ColorWhite
Fiber Index (% Wt)45
Na2O3 (%)<0.3
Temperature Grade (°C)1427

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