Chemical Resistance Graphite Gasket Sheet for Petrochemical Piping - 20MPa Pressure, -200°C to 600°C Temperature Range
Price:
2.2USD PER KG
MOQ:
500kg
Delivery Time:
20 days
Brand:
CLINGSEAL
Product Description
Graphite Gasket Solutions for Petrochemical Piping Systems
Expandable graphite materials including flexible graphite sheets, foil, paper, tape, and strip are engineered for critical industrial sealing applications. These binder-free materials offer exceptional corrosion resistance, thermal stability, and mechanical durability for petrochemical environments.
Key Technical Advantages
Chemical Resistance
- Withstands aggressive chemicals including sulfuric acid, hydrocarbons, and solvents
- High purity with carbon content exceeding 99.9% prevents media contamination
Thermal Stability
- Operates effectively from cryogenic -200°C to high temperatures up to 1650°C
- Low thermal expansion coefficient maintains dimensional stability during rapid temperature changes
Mechanical Durability
- Handles high pressures with compressive strength exceeding 50 MPa
- Flexible graphite structure conforms easily to uneven pipe surfaces
Industrial Applications
- Flange, valve, and fitting seals in refineries and petrochemical plants
- Reactor, heat exchanger, and distillation column sealing
- Safety-critical systems handling hazardous materials like hydrogen sulfide
Available Specifications
- Coil widths: 1000mm or 1500mm with lengths of 30m, 50m, or 80m
- Plate sizes: 1000mm x 1500mm with thicknesses from 0.15mm to 5mm
- Custom density: 0.8g/cm³ to 1.25g/cm³
- Special shapes: spiral-wound or corrugated designs for unique configurations
Technical Specifications
| Parameter | Standard Value |
|---|---|
| Carbon Concentration | 99% |
| Sulfur Concentration | <1000ppm |
| Chlorine Concentration | <45ppm |
| Tensile Strength | 4.5MPa |
| Compressibility | >40% |
| Recovery | >10% |
| Temperature Range | -200°C to 600°C |
| Pressure Rating | 20MPa |
Quality Grades Comparison
| Mechanical Data | Qualified Product | Top Grade | Superior Grade |
|---|---|---|---|
| Tensile Strength (MPa) | ≥3.2 | ≥4.5 | ≥5.0 |
| Compression Ratio (%) | 35-55 | ||
| Rebound Rate (%) | ≥9 | ≥11 | ≥12 |
| Stress Relaxation Rate (%) | ≤10 | ||
| Sulfur Content (ppm) | ≤1500 | ≤1000 | ≤600 |
| Chloride Content (ppm) | ≤100 | ≤50 | ≤20 |
Compliance & Quality: Meets ASME BPVC Section VIII, ISO 9001, RoHS compliant, asbestos-free. Third-party testing available through SGS or TÜV.
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Get in Touch
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Company
Anqing Cling-Seal Manufactory Co., Ltd.
Location
Economic development zone, AnQing, Anhui, China
Contact Person
Jerry