Products Description
Engineered from natural graphite flakes via a proprietary chemical intercalation and thermal expansion process, our flexible graphite materials—including sheets, foil, paper, tape, and strips—undergo rigorous quality control adhering to ISO 9001:2015 standards. The production process creates exfoliated graphite worms with a bulk density of 0.003g/cc, which are cold - rolled into binder - free coils. This results in materials with ≥99.8% purity and exceptional performance characteristics validated by third - party audits.
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Material Traceability
- All raw materials are sourced from certified suppliers and tracked through blockchain technology for 100% product traceability.
- Each batch undergoes XRF analysis to verify chemical composition compliance.
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Process Control
- Automated rolling mills maintain thickness tolerances within ±0.02mm for coils and ±0.1mm for plates.
- Statistical process control (SPC) charts monitor critical parameters like compression ratio and expansion temperature.
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Final Inspection
- 100% visual inspection for surface defects
- Random sampling for physical testing (ASTM D696 for thermal expansion, ASTM F38 for stress relaxation)
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Performance Consistency
- Density customizable between 0.8 - 1.25g/cm³ with batch - to - batch variation ≤5%
- Compressive strength exceeding 50 MPa (ASTM F36 tested)
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Chemical & Thermal Stability
- Resists acids (pH 1 - 3), alkalis (pH 11 - 14), and organic solvents
- Operates reliably from cryogenic (-200°C) to 1650°C in oxidizing environments
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Regulatory Compliance
- RoHS/REACH compliant with full SVHC declarations
- FDA - compliant grades available for food/pharmaceutical applications
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Gasket Fabrication:
- CNC cutting for complex shapes (tolerances ±0.1mm)
- Laser - marked part numbers for traceability
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Composite Development:
- Metal reinforcement options (stainless steel, nickel, tinplate)
- Hybrid materials with PTFE or aramid fibers
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Documentation:
- Certificate of Conformance (CoC) with test data
- FMEA analysis for critical applications
- Production Capacity: 200 metric tons/month
- Lead Times: Standard orders shipped within 7 working days
- Packaging: Marine - grade pallets with moisture - resistant wrapping
- Internal audits conducted quarterly by ISO - certified auditors
- Corrective Action Preventive Action (CAPA) system for continuous improvement
- 5 - year warranty on all products meeting specified storage conditions
Why Choose Our ISO 9001 - Certified Facility?
- "Process - oriented" quality management system
- Over 20 years of experience in supplying Fortune 500 clients
- Dedicated technical team for on - site process validation
Your partner in high - performance, ISO - compliant graphite sealing solutions.
| 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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