NeoGraf GRAFOIL® GHN Standard Fluid Sealing Laminate, Non-Metal Reinforced

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NeoGraf GRAFOIL® GHN Standard Fluid Sealing Laminate, Non-Metal Reinforced
Categories:	Carbon; Graphite
Material Notes:	GRAFOIL® Grade GHN is an unbranded laminate made with GRAFOIL® Grade TG-337 flexible graphite, thermally bonded to both faces of a plastic insert. It is not certified to any industry standards. It is similar to Grade GHP, but with low-cost natural graphite. Grade GHN provides excellent long term sealing, good load retention, and easy removal of frequently rebuilt flanges. Surface identifiable, the laminate is branded with the GRAFOIL® grade and source guarantee. Its applications include: general gasket service; blind flange gaskets; replacements for current compressed sheets and beater-addition-type sheets; and other non-asbestos gasketing materials. 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 TG-337 ? 0.0015" thick plastic ? GRAFOIL® Grade TG-337 Formerly a product of GrafTech.
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Physical Properties	Original Value	Comments

Bulk Density	62.4 lb/ft³	Standard; Graphite
Thickness	760 microns	Standard; Laminate
	1520 microns	Standard; Laminate

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	450 psi
Compression Set	89 % @Pressure 34.5 MPa	after 5000 psi load

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	400 °C
Minimum Service Temperature, Air	-240 °C

Descriptive Properties
"m" Factor	2	ASME Gasket Factor
"y" Stress (psi)	900	ASME Gasket Factor
Compressibility (%)	50	at 5000 psi load
Max Gasket Unit Load (psi)	24000	ASME Gasket Factor

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CGRAF935 / 107339

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