NeoGraf GRAFOIL® GHE Standard Fluid Sealing Laminate, Metal Reinforced

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NeoGraf GRAFOIL® GHE Standard Fluid Sealing Laminate, Metal Reinforced
Categories:	Carbon; Graphite
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 Formerly a product of GrafTech.
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Physical Properties	Original Value	Comments

Bulk Density	70.0 lb/ft³	Standard; Graphite
Thickness	1630 microns	Standard; Laminate
	3150 microns	Standard; Laminate

Mechanical Properties	Original Value	Comments
Compression Set	82 % @Pressure 34.5 MPa	Typical for 0.064" thick

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	525 °C
Minimum Service Temperature, Air	-240 °C

Descriptive Properties
"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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CGRAF939 / 107343

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