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	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
"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

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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CGRAF939 / 107343

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