NeoGraf GRAFOIL® GTJ Standard Fluid Sealing Graphite, Single Layer Material

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NeoGraf GRAFOIL® GTJ Standard Fluid Sealing Graphite, Single Layer Material
Categories:	Carbon; Graphite
Material Notes:	GRAFOIL® GTJ premium flexible graphite is an oxidation/corrosion inhibited grade developed for use in nuclear and high temp, high purity applications. It is certified to meet the most rigorous purity specifications of the nuclear industry, including the General Electric Nuclear Nonmetallic Material Specification D50YP12 (Rev 2) and is typically 99.8% graphite. While maintaining an effective seal, GRAFOIL® material exhibits virtually no creep relaxation. As a result, the need for periodic bolt tightening is greatly reduced. Formerly a product of GrafTech.
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Physical Properties	Original Value	Comments

Bulk Density	70.0 lb/ft³	Standard
Thickness	250 microns	Standard
	380 microns	Standard
	760 microns	Standard
Ash	0.50 %

Chemical Properties	Original Value	Comments
Ionic Impurities - Cl (Chloride)	<= 10 ppm	Leachable

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

Component Elements Properties	Original Value	Comments
Aluminum, Al	0.0015 %
Carbon, C	99.5 %
Copper, Cu	<= 0.0010 %
Mercury, Hg	<= 0.000050 %
Phosphorus, P	0.050 %
Sulfur, S	0.045 %

Descriptive Properties
Total Chlorides (%)	<50
Total Fluorides (ppm)	<50
Total Halogens (ppm)	40
Total Nitrates (ppm)	10
Total Nitrites (ppm)	1

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CGRAF930 / 107334

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