Carbon Graphite Filled PTFE — Material Specifications, Engineering Data & OEM Supply
Produced at our Gujarat manufacturing works, Carbon Graphite Filled PTFE offers superior sealing and wear resistance for carbon graphite filled components. Combines virgin and reinforced PTFE fluoropolymer grades with precision compression moulding and 100% batch quality inspection for OEM applications.
Where Carbon Graphite Filled PTFE is used
Supplied as piston rings, rider bands and dry-running bushes for compressor and pump service.
Carbon with graphite
improved wear life and thermal conductivity, with the graphite lowering friction in dry running.
Chosen over plain graphite-filled PTFE when the part must also carry load and shed heat: the carbon raises compressive strength and thermal conductivity while the graphite keeps friction down.
Key properties
In-house Carbon Graphite Filled PTFE production
moulding and CNC under one roof
Drawing, CAD (STEP/IGES/DXF), or sample-based reverse engineering
PTFE grade options matched to chemical and thermal duty
Dimensional inspection with reports on request
IEC-registered exporter
worldwide packing and docs
Flexible MOQ
prototypes, pilot lots, recurring OEM supply
Specifications
| Property | Value |
|---|---|
| Component Type & Grade | Carbon Graphite Filled PTFE (Specification Code HES-368) |
| Base Raw Material | PTFE fluoropolymer (Virgin FDA 21 CFR 177.1550 / Custom Filled) |
| Continuous Service Temp. | -200°C to +260°C (-328°F to +500°F) |
| Tensile Strength at Break | 20 to 35 MPa (Virgin) / 14 to 25 MPa (Filled) |
| Elongation at Break | 250% to 450% (ASTM D4894) |
| Specific Gravity / Density | 2.14 to 2.18 g/cm³ (ASTM D792) |
| Dielectric Strength | 50 to 80 kV/mm (0.1 mm film) |
| Surface Roughness Finish | Diamond Polished Ra ≤ 0.20 µm to Ra ≤ 0.40 µm |
| Dimensional Tolerance | ISO Grade 1 to Grade 3 / Drawing Nominals (±0.02 mm) |
| Manufacturing & Origin | Moulded, Sintered & CNC Machined in Dahegam, Gandhinagar, Gujarat, India |
Manufacturing process
Fabrication of Carbon Graphite Filled PTFE relies on high-tonnage powder compaction and free sintering of PTFE fluoropolymer. Preforms are pressed under strict pressure dwell parameters, then heat-treated above 342°C in forced-convection ovens to bond resin granules into a void-free, chemically resilient matrix.
Material selection notes
Engineered from high-purity PTFE fluoropolymer, this component resists virtually all industrial acids, alkalis, and aggressive organic solvents. The non-stick, self-lubricating surface minimizes drag and prevents material buildup in fluid handling systems. Compressive deformation under load is optimized through tailored filler grades based on service pressure.
How to specify your order
Sizing and ordering Carbon Graphite Filled PTFE: Share drawing files (STEP/PDF), annual volume projections, and any compliance requirements (FDA, USP Class VI). Our technical department confirms tooling costs, sample schedules, and volume production lead times.
Quality checks and inspection
Testing procedures for Carbon Graphite Filled PTFE include optical comparator profile inspection, hydrostatic pressure holding tests on seal components, and material hardness checks (Shore D) to verify full sintering cure.
Ordering and export documentation
Domestic Carbon Graphite Filled PTFE orders ship with GST invoice and e-way bill where applicable. Export orders include commercial invoice, packing list, and certificate of origin from our IEC-registered works. Air and sea freight packing with desiccant and shock protection for international buyers Contact info@hemsun.com or sales@hemsun.com with your PTFE components specification.
Export packing and lead time
Export logistics for Carbon Graphite Filled PTFE cover global delivery via air freight or ocean container through Mundra and Nhava Sheva ports. Products are packed with protective foam wrapping and moisture-barrier film inside export-grade wooden crates, accompanied by certified commercial invoices and Certificates of Origin.
Storage and handling
Guidelines for Carbon Graphite Filled PTFE: Handle with clean gloves during precision assembly. Ensure mating metallic seats and shafts exhibit surface finishes of Ra ≤ 0.4 µm for maximum component operating life.
Compliance & Standards
HEMSUN is a DGFT IEC registered exporter (Government of India). Filler content and sintered density are verified per ASTM D792 on each batch, with tensile and elongation checked per ASTM D4894. A mill test certificate stating the lot, filler content and measured values ships with the order. Export paperwork — commercial invoice, packing list and certificate of origin — accompanies international despatch.
Frequently Asked Questions
What Carbon Graphite Filled PTFE options does HEMSUN manufacture?
Produced at our Gujarat manufacturing works, Carbon Graphite Filled PTFE offers superior sealing and wear resistance for carbon graphite filled components. Combines virgin and reinforced PTFE fluoropolymer grades with p…
Can you supply Carbon Graphite Filled PTFE for OEM and export orders?
Yes. We support prototype lots, recurring OEM programmes, and export packing with material certificates and dimensional inspection reports on request. Typical RFQ response is within one business day when drawings are complete.
How do I request a quote for Carbon Graphite Filled PTFE?
Send material grade, dimensions or drawing, quantity, application media, and operating temperature/pressure via https://hemsun.com/contact. Our engineering team confirms manufacturability, lead time, and pricing.