Flexible Graphite Sheet for Steam
Product Description:
Flexible Graphite Sheet for Steam is a high-performance sealing material designed for steam, high-temperature, and high-pressure industrial applications. It is manufactured from expanded natural graphite and offers excellent resistance to heat, pressure, chemicals, and corrosion.
It is commonly used for flange gaskets, pipe connections, valves, pumps, boilers, heat exchangers, and steam lines where reliable sealing is required. The material provides excellent compressibility and recovery, helping reduce leakage under demanding operating conditions.
Key Features
- Excellent steam and high-temperature resistance
- High-pressure sealing performance
- Excellent chemical resistance
- Good compressibility and recovery
- Resistant to oxidation within suitable operating conditions
- Easy to cut into custom gasket shapes
- Suitable for industrial piping and equipment
- Long service life with proper installation
Typical Applications
- Steam pipelines
- Industrial boilers
- Flanges and pipe joints
- Valves and pumps
- Heat exchangers
- Pressure vessels
- Petrochemical and industrial equipment
- High-temperature gasket applications
Specification
- Material: Flexible/Expanded Graphite
- Form: Sheet
- Application: Steam & high-temperature sealing
- Color: Black / Dark Graphite
- Thickness: Available in various thicknesses
- Size: Available in standard and custom sizes
- Usage: Gasket and industrial sealing
| Item | N Grade | Industrial grade |
| Tolerance of Density  g/cm3 | ±0.05 | ±0.06 |
| Carbon Content  ≥% | 99.5 | 95 |
| Tensile strength  ≥Mpa | 5 | 4 |
| Compressibility  ≥% | 30 | 30 |
| Recovery  ≥% | 15 | 15 |
| Sulphur Content  ≤ppm | 400 | 1200 |
| Chlorine Content   ≤ppm | 25 | 50 |
| Stress relaxation rate  % | 10 | 10 |
| Lgnition loss  ≤% | 0.5 | 2 |
Temperature: -240~1650°C (under non oxidizing environment)
-200~850°C (under oxidizing environment)
| Item | Pure Graphite Sheet | Pure Graphite Roll |
| Density  g/cm3 | 1.0 | 1.0 |
| Length mm | 1000, 1500mm | 30~100m |
| Width mm | 1000, 1500mm | 1000~1500 |
| Thickness mm | 0.3~5 | 0.2~1.1 |
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