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GrafTech GRAFOIL® UCAR®-323 Reinforced PTFE Gasketing

Category Carbon , Graphite
Manufacturer GrafTech International
Trade Name GRAFOIL®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF GrafTech GRAFOIL® UCAR®-323 Reinforced PTFE Gasketing.pdf
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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.
Physical Properties Metric English Comments
Specific Gravity 2.30 g/cc
2.30 g/cc
Thickness 790 microns
31.1 mil
Standard
1570 microns
61.8 mil
Standard
3180 microns
125 mil
Standard
Mechanical Properties Metric English Comments
Tensile Strength at Break 82.7 MPa
12000 psi
Compression Set 30 %

@Pressure 34.5 MPa
30 %

@Pressure 5000 psi
after 5000 psi load
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 245 °C
473 °F
Continuous
Minimum Service Temperature, Air -200 °C
-328 °F
Electrical Properties Metric English Comments
Dielectric Strength 9.84 kV/mm
250 kV/in
Descriptive Properties Value Comments
"m" Factor 3
"y" Stress (psi) 2200
Coefficient of Thermal Conductivity (k) 0.18
Compressibility (%) 3
at 5000 psi load
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