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GrafTech GRAFOIL® GHE Standard Fluid Sealing Laminate, Metal Reinforced

Category Carbon , Graphite
Manufacturer GrafTech International
Trade Name GRAFOIL®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF GrafTech GRAFOIL® GHE Standard Fluid Sealing Laminate, Metal Reinforced.pdf
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Material Notes:
GRAFOIL® Grade GHE laminate is made with GTB flexible graphite mechanically bonded to both faces of a 316 or 316L stainless steel tang metal insert. Surface identifiable, the laminate is branded with the GRAFOIL® grade and source guarantee. Grade GHE is suitable for standard industrial fluid sealing applications as well as applications in: chemical, petrochemical, refinery, steam service, cryogenic, and ASME class 150 & 300 flanges. While maintaining an effective seal, GRAFOIL® material exhibits virtually no creep relaxation. As a result, the need for periodic bolt tightening is greatly reduced. Laminate Construction: GRAFOIL® Grade GTB ? 0.004" thick (prior to tanging) 316 or 316L stainless steel (per ASTM A-240) ? GRAFOIL® Grade GTB
Physical Properties Metric English Comments
Bulk Density 1.12 g/cc
0.0405 lb/in³
Standard; Graphite
Thickness 1630 microns
64.2 mil
Standard; Laminate
3150 microns
124 mil
Standard; Laminate
Mechanical Properties Metric English Comments
Compression Set 82 %

@Pressure 34.5 MPa
82 %

@Pressure 5000 psi
Typical for 0.064" thick
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 525 °C
977 °F
Minimum Service Temperature, Air -240 °C
-400 °F
Descriptive Properties Value Comments
"m" Factor 2
ASME Gasket Factor
"y" Stress (psi) 2500
ASME Gasket Factor
Compressibility (%) 36
at 5000 psi load; Typical for 0.064" thick
Max Gasket Unit Load (psi) 24000
ASME Gasket Factor
Resistance in #1 Oil (%) <33
Weight change
<8
Thickness increase
Resistance in #3 Oil (%) <12
Thickness increase
<35
Weight change
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