MatWeb - Material Property Data Advertise with MatWeb!     Register Now
Data sheets for over 180,000 metals, plastics, ceramics, and composites.
MatWeb - Material Property Data HOME  •   SEARCH  •   TOOLS  •   SUPPLIERS  •   FOLDERS  •   ABOUT US  •   FAQ  •   LOG IN    
Recently Viewed Materials (most recent at top)  

Login to see your most recently viewed materials here.

Or if you don't have an account with us yet, then click here to register.

  Searches:   Advanced  | Category  | Property  | Metals  | Trade Name  | Manufacturer  | Recently Viewed Materials
Ensinger PEI
NeoGraf GRAFOIL® GHW Standard Fluid Sealing Laminate, Non-Metal Reinforced
Categories: Carbon; Graphite

Material Notes: GRAFOIL® Grade GHW is a laminate made with GRAFOIL® Grade GTB flexible graphite thermally bonded to a 0.0025" thick high-temperature continuous woven glass fiber insert. Its functional temperature range is -240°C to 400°C (-400°F to 750°F). Grade GHW is a patented product (US Patent 4,961,991) with excellent strength and handling characteristics. In addition, GHW laminates have excellent blowout resistance and high-temperature creep relaxation characteristics when compared to good quality asbestos, aramid, and carbon fiber gasket materials. GHW is fire safe, and elevated temperature testing proves that GHW outperformed asbestos gasket materials. Its applications include valves, pumps, pipe/ASME/API/DIN flanges, glass-lined or low load flange equipment, steam traps, heat exchangers, and compressors. The advantages of grade GHW are compatible with a wide range of chemicals; maximum continuous use temperature 400°C (750°F); no shelf life; material availability in rolls allows for maximum material utilization; cost effective; easily cut; contains no hazardous materials; robust enough for easy handling and durability; superior to non-asbestos fiber sheet in every characteristic (Temp, Creep, Recovery, and Sealability). Laminate Construction: GRAFOIL® Grade GTB ? 0.0025" high-temperature, PTFE impregnated, continuous woven glass fiber insert ? GRAFOIL® Grade GTB. The Max Operating Pressure is rated for ASME class 150 or class 300 flanges.

Formerly a product of GrafTech.

Available Properties
  • Bulk Density, Standard; Graphite
  • Thickness, Standard
  • Thickness, Standard
  • Compression Set, after 5000 psi load
Property Data

This page displays only the text
of a material data sheet.

To see MatWeb's complete data
sheet for this material (including
material property data, metal
compositions, material suppliers,
), please click the button below.

Manufacturer Notes:
NeoGraf Solutions, former GrafTech

Category Notes

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.


Visit Zeus Inc. for PEEK Tubing
Please read our License Agreement regarding materials data and our Privacy Policy. Questions or comments about MatWeb? Please contact us at We appreciate your input.

The contents of this web site, the MatWeb logo, and "MatWeb" are Copyright 1996-2024 by MatWeb, LLC. MatWeb is intended for personal, non-commercial use. The contents, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from MatWeb, LLC.