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GrafTech GRAFOIL® GTB Standard Fluid Sealing Graphite Single Layer Gasketing Material
| Category | Carbon , Graphite |
| Manufacturer | GrafTech International |
| Trade Name | GRAFOIL® |
| Port | Shanghai port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | GrafTech GRAFOIL® GTB Standard Fluid Sealing Graphite Single Layer Gasketing Material.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
GRAFOIL® GTB flexible graphite sheet is a gasketing material containing no binders or fillers. Standard industrial grade GTB flexible graphite has an oxidation/corrosion inhibitor and is typically 98% graphite. Grade GTB is the facing material for grades GHR, GHE, GHP, and GHW laminates. GTB is used in most standard industrial fluid sealing applications, including: chemical, petrochemical, refinery, and steam service. While maintaining an effective seal, GRAFOIL® material exhibits virtually no creep relaxation. As a result, the need for periodic bolt tightening is greatly reduced.
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Bulk Density | 1.00 g/cc | 0.0361 lb/in³ | Standard for 0.020", 0.040" 0.060" thick |
| 1.12 g/cc | 0.0405 lb/in³ | Standard for 0.005", 0.010", 0.015", 0.020", 0.025", 0.030", 0.060" thick | |
| Thickness | 130 microns | 5.12 mil | Standard |
| 250 microns | 9.84 mil | Standard | |
| 380 microns | 15.0 mil | Standard | |
| 510 microns | 20.1 mil | Standard | |
| 640 microns | 25.2 mil | Standard | |
| 760 microns | 29.9 mil | Standard | |
| 1020 microns | 40.2 mil | Standard | |
| 1520 microns | 59.8 mil | Standard | |
| Ash | 1.8 % | 1.8 % |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Tensile Strength at Break | 4.48 MPa | 650 psi | Typical for 70 lb/ft³ |
| Compression Set | 85 % @Pressure 34.5 MPa |
85 % @Pressure 5000 psi |
Typical for 70 lb/ft³ |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| Maximum Service Temperature, Air | 525 °C | 977 °F | |
| Minimum Service Temperature, Air | -240 °C | -400 °F |
| Component Elements Properties | Metric | English | Comments |
|---|---|---|---|
| Carbon, C | 98.2 % | 98.2 % | |
| Sulfur, S | 0.055 % | 0.055 % |
| Chemical Properties | Metric | English | Comments |
|---|---|---|---|
| Ionic Impurities - Cl (Chloride) | 10 ppm | 10 ppm | Leachable |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Compressibility (%) | 43 | at 5000 psi load; Typical for 70 lb/ft³ |
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