Products Description
German Industrial Grade Graphite Gaskets
Our precision-engineered graphite gasket materials include: flexible sheets, foils, papers, tapes, and strips. Manufactured using German-standard processes, these products start with natural flake graphite treated through chemical intercalation and high-temperature exfoliation to form worm-like structures (density: ~0.003g/cm³). The binder-free expanded graphite is then calendared into rolls, offering:
- 99.5%+ purity
- DIN EN 13555 certified performance
- Resistance to chemicals/radiation
- Service temperature: -200°C to +650°C
- ISO 9001:2015 compliant production
- Compression set <15%
- Gas-tight sealing performance
Ideal for demanding industrial applications, these rolls can be laminated with stainless steel/copper for enhanced mechanical strength.
Industrial Applications:
- High-precision packing rings for pumps/valves
- Custom die-cut gaskets for flange sealing
- Composite plates for heat exchanger applications
- High-temperature insulation pads meeting ASME standards
Technical Specifications (DIN EN 13555):
- Roll Width: 1000mm / 1500mm (custom up to 2000mm)
- Coil Length: 30m, 50m, 80m (cut-to-order service)
- Thickness:
- Rolls: 0.15-1.0mm
- Sheets: 1.0-5.0mm
- Density: 0.8-1.25g/cm³
- Tensile Strength: ≥3.5MPa (ASTM F436)
Custom solutions available for:
- Non-standard dimensions
- Metal-reinforced composites
- FDA/EC 1935-2004 compliant grades
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 |
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