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Rulon Bearings

NeoGraf GRAFOIL® UCAR®-323 Reinforced PTFE Gasketing
Categories: Carbon; Graphite

Material Notes: GRAFOIL® Grade UCAR®-323 is a laminated gasket material consisting of multiple plies of woven fiberglass coated with PTFE. It will not support combustion or bacteria. Its applications include: electrical isolation of pipelines and equipment; and use with sulfuric acid, nitric acid, and other strong oxidizing chemicals. Surface identifiable, UCAR®-323 is branded with the GRAFOIL® grade and source guarantee. The advantages of UCAR®-323 are: more than 5 times the tensile strength of the market leader PTFE; extremely tolerant to process changes (temperature & pressure); design and material give up 14 times the sealability rate; 70% less creep; absorption rate of less than 0.1%; and maintains a higher bolt torque retention and a better seal in applications of thermal cycling.

Formerly a product of GrafTech.

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Physical PropertiesMetricEnglishComments
Specific Gravity 2.30 g/cc2.30 g/cc
Thickness 790 microns31.1 milStandard
 1570 microns61.8 milStandard
 3180 microns125 milStandard
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength at Break 82.7 MPa12000 psi
Compression Set 30 %
@Pressure 34.5 MPa
30 %
@Pressure 5000 psi
after 5000 psi load
 
Electrical PropertiesMetricEnglishComments
Dielectric Strength 9.84 kV/mm250 kV/in
 
Thermal PropertiesMetricEnglishComments
Maximum Service Temperature, Air 245 °C473 °FContinuous
Minimum Service Temperature, Air -200 °C-328 °F
 
Descriptive Properties
"m" Factor3
"y" Stress (psi)2200
Coefficient of Thermal Conductivity (k)0.18
Compressibility (%)3at 5000 psi load

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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