Anqing Cling-Seal Manufactory Co., Ltd.
A Sealing Material Partner You Can Rely On
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Products Description
Flexible graphite Sheet , Graphite Foil , Graphite paper , Graphite Tape , Graphite Strip (paper)
Flexible graphite material, also known as flexible graphite paper or flexible graphite sheet , is made of natural graphite flakes after chemical treatment and then heated to high temperature to form graphite worms. The density of this worm like graphite powder is about 0.003g/cc. Then the flexible graphite coil is formed by rolling. The expanded graphite coiled material does not contain binder and filler, so it has high purity, good corrosion resistance, radioactivity resistance, high / low temperature resistance, good compression resilience, self lubrication and impermeability, and is suitable for sealing low-pressure parts. Graphite coil and metal sheet can be compounded into various forms of graphite composite plate.
Product application:
1. it can be used as graphite packing ring material
2. it can be combined with metal sheet to form graphite composite sheet and cut into sealing gaskets of various shapes
3. it is directly used to make various low-pressure gaskets or high-temperature insulation pads after being processed into thick plates
Common specifications of graphite sheet :
Width 1000mm or 1500mm, coil length 30,50,80m; Plate 1000mm or 1500mm; Coil thickness 0.15-1.0; Plate 1.0mm-5mm;
Density, 0.8-1.25g/cm3, other special specifications can be requested by customers.
| Item | Standard Value |
| C concentration | 99% |
| S concentration | <1000ppm |
| chlorine concentration | <45ppm |
| tensile strength | 4.5MPa |
| compressibility | >40% |
| recovery | >10% |
| Temperature | -200ºC-600ºC |
| Pressure | 20MPa |
| Terence of Thickness | -0.04mm~+0.04mm |
| Terence of Dimension | In accordance with your Gasket size |
| Terence of Density | -0.06~g/cm3+0.06gcm3 |
| Mechanical Data | Qualified product | Top Grade | Superior Grade | |
| Density Tolerance g/cm3 | <0.4 | ±0.10 | ±0.05 | |
| ≥0.4 | ±0.07 | |||
| Tensile Strength MPa | ≥3.2 | ≥4.5 | ≥5.0 | |
| Compression Ratio % | 35~55 | |||
| Rebound Rate % | ≥9 | ≥11 | ≥12 | |
| Stress relaxation rate % | ≤10 | |||
| Ash % | ≤6.0 | ≤3.0 | ≤1.0 | |
| Heat loss on ignation % | 450ºC | ≤1.0 | ≤0.5 | |
| 600ºC | ≤20 | ≤15 | ||
Sulphur content | ≤1500ppm | ≤1000ppm | ≤600ppm | |
Chloride content | ≤100ppm | ≤50ppm | ≤20ppm | |
