Products Description
Graphite Gasket Technical Consultation
Your One-Stop Source for Custom Sealing Solutions
Flexible graphite materials, including sheets, foils, papers, tapes, and strips, are engineered through advanced chemical intercalation and thermal exfoliation processes. Natural graphite flakes undergo controlled expansion at high temperatures to form worm-like structures with a density of ~0.003g/cm³. These expanded graphite rolls are binder-free, ensuring:
- 99.5%+ purity
- Chemical resistance
- Radiation tolerance
- Thermal stability (-200°C to +650°C)
- Compression recovery
- Self-lubricating properties
- Gas-tight sealing
Graphite Gasket Applications
Our technical experts recommend these materials for:
- Valve and pump packing rings
- Custom-engineered flange gaskets
- High-temperature insulation systems
- Composite seals with metal reinforcement
Technical Specifications
| Parameter | Standard Range | Custom Options |
| Roll Width | 1000mm / 1500mm | 500-2000mm |
| Coil Length | 30m / 50m / 80m | Cut-to-length up to 100m |
| Thickness | 0.15-5.0mm (sheets/rolls) | 0.1-10mm (special orders) |
| Density | 0.8-1.25g/cm³ | 0.6-1.5g/cm³ (adjustable) |
Why Choose Our Graphite Gaskets?
- No curing required
- Low outgassing properties
- UL/cSFM compliant grades
- ISO 9001:2015 certified manufacturing
Technical Consultation Services
Our team provides:
- Application-specific material selection
- Finite Element Analysis (FEA) for gasket performance
- CAD design support for custom shapes
- Compatibility testing with your operating media
Contact us today for a free graphite gasket technical consultation. We specialize in solving complex sealing challenges across industries.
| 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 |
Grades Separate :JB/T53392-1999 | 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 |
| | | | | |
