Reinforced Flexible Graphite Gasket Material 99% Carbon Content for -240°C to 850°C Temperature Range
Price:
2.2USD PER KG
MOQ:
500kg
Delivery Time:
20 days
Brand:
CLINGSEAL
Product Description
Reinforced Flexible Graphite Gasket Material
Material Composition & Production
Manufactured through chemical intercalation and thermal expansion (1000-1200°C) of natural graphite flakes, then reinforced with stainless steel mesh (304/316L) or perforated alloy foils via high-pressure lamination.
Structural Advantages
- Enhanced Tensile Strength: 15-25 MPa vs. 5-8 MPa for non-reinforced grades
- Directional Compression Stability: ≤5% thickness variation under 50 MPa cyclic loading
- Pressure Adaptability: Effective sealing from vacuum (10⁻³ Pa) to 40 MPa systems
- Thermal Bridging: Reduced heat transfer (Thermal conductivity: 5-20 W/m·K adjustable)
Operational Performance
- Temperature Range: -240°C (cryogenic) to +850°C (oxidizing environments)
- Chemical Compatibility: Resists 98% concentrated H₂SO₄, 50% NaOH, and hydrocarbon fluids
- Creep Resistance: <0.2% permanent deformation after 2000h at 300°C/25 MPa
Industrial Applications
- High-Pressure Energy Systems: Oil & gas wellhead sealing (API 6A/ISO 10423 compliant)
- Heavy Industrial Machinery: Turbine flange seals for power generation
- Transportation Engineering: Fuel cell bipolar plate sealing in hydrogen vehicles
- Process Industry: Reactor manway seals in petrochemical plants
Technical Specifications
| Parameter | Reinforced Coil | Reinforced Plate |
|---|---|---|
| Core Thickness | 0.3-1.2mm | 1.5-6.0mm |
| Reinforcement | SS304/Inconel mesh | Titanium perforated foil |
| Working Pressure | ≤25 MPa | ≤40 MPa |
| Density | 1.1-1.8 g/cm³ | 1.5-2.2 g/cm³ |
| Standard Width | 1200/1500mm | 1000/1500/2000mm |
Quality Standards & Mechanical Data
| Parameter | Qualified Product | Top Grade | Superior Grade |
|---|---|---|---|
| Tensile Strength (MPa) | ≥3.2 | ≥4.5 | ≥5.0 |
| Rebound Rate (%) | ≥9 | ≥11 | ≥12 |
| Sulphur Content (ppm) | ≤1500 | ≤1000 | ≤600 |
| Chloride Content (ppm) | ≤100 | ≤50 | ≤20 |
| Ash Content (%) | ≤6.0 | ≤3.0 | ≤1.0 |
Customization Options
- Multi-layer staggered reinforcement patterns
- Edge welding protection for corrosive media
- Pre-cut gaskets with alignment dowel holes
- Fire-safe certification (API 607/ISO 10497)
Product Images
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Anqing Cling-Seal Manufactory Co., Ltd.
Location
Economic development zone, AnQing, Anhui, China
Contact Person
Jerry