PEEK Tubing & Hollow Rods
High-precision extruded PEEK Tubing and Hollow Rods engineered for seals, bushings, and high-pressure fluid delivery. Features continuous extrusion technology to eliminate internal voiding and shrinkage holes associated with injection molding. Temperature resistant to 260°C, FDA food-contact compliant, and UL94 V-0 flame rated. Available in OD 23-550mm × ID 12-460mm. Contact us for custom cut-to-length sizes and fast RFQs.
Product information
Published information supports preliminary product selection. Confirm the exact grade, dimensions, tolerances, documentation and application suitability with the quotation for your order.
Description
Extruded PEEK Tubing and Hollow Rods represent the most cost-effective machining stock for manufacturing annular seals, piston rings, valve seats, and high-pressure fluid delivery sleeves. Produced using advanced automated continuous extrusion, our hollow PEEK stock eliminates the internal shrinkage voids common in thick-walled injection molding and overcomes the height restrictions of compression-molded tubes. Machining hollow PEEK tubes directly saves up to 40% in raw material waste and drastically reduces CNC lathe drilling time compared to turning solid PEEK rods.
Key Mechanical, Thermal & Dimensional Data:
| Physical & Engineering Parameter | Nominal Value | Test Standard / Note |
| Outer Diameter (OD) Range | 23mm to 550mm | Custom OD available |
| Inner Diameter (ID) Range | 12mm to 460mm | Custom ID available |
| Glass Transition Temp (𝑇𝑔) | 143°C | DSC |
| Melting Point (Tₘ) | 343°C | DSC |
| Heat Deflection Temp (HDT @ 1.8 MPa) | 316°C | ISO 75 / ASTM D648 |
| Continuous Service Temp (UL) | 260°C (Short-term peak 320°C) | UL 746B |
| Radiation Resistance | 1100 Mrad (γ-radiation) | ISO 11137 |
| Flammability & Food Compliance | UL94 V-0 (1.45mm) | FDA Food Contact Approved |
Zero-Voiding Extrusion & Material Efficiency Advantages:
• Eliminate Machining Material Waste: Boring out solid PEEK rods generates excessive expensive scrap. PEEK hollow rods provide near-net-shape stock, slashing raw material costs and tool wear for ring-shaped components.
• Zero Shrinkage Holes & Internal Voids: Automated continuous extrusion guarantees a dense, uniform crystalline structure throughout heavy tube walls, ensuring leak-tight performance under high hydraulic pressures.
• Extreme Hydrothermal & Chemical Resistance: Immune to steam sterilization at temperatures exceeding 250°C, hot water hydrolysis, and aggressive acids or organic solvents (insoluble in common solvents).
• High Dielectric & Low Outgassing: Retains electrical insulation under wide temperature ranges and exhibits ultra-low smoke and toxic gas emissions during high-temperature operation.
Cross-Industry Component Manufacturing:
Engineered for precision CNC lathe turning, parting, and drilling of:
• Oil & Gas & Petrochemical: Downhole logging tool sleeves, high-pressure compressor valve seats, subsea packing rings, and anti-extrusion seals.
• Food, Beverage & Pharma Packaging: FDA-approved filling nozzles, dosing pistons, sanitary liquid transfer tubes, and sterilizable valve sleeves.
• Semiconductor & Analytical Instruments: Capillary fluid tubing, HPLC column fittings, plasma chamber insulators, and wafer-handling bushings.
• General Industrial Machinery: High-temperature wear bushings, low-noise gears, unlubricated thrust washers, and automotive sensor housings.
Supply Specifications & Fast RFQ Support:
• Available Dimensions: Heavy-wall and thin-wall tubing in stock (OD 23550mm × ID 12460mm). Supplied in standard 1000mm/3000mm lengths or custom cut-to-length billets.
• Documentation & Quality Assurance: Every batch ships with Material Test Reports (MTR), FDA compliance certificates, and Certificates of Conformance (CoC).
Need specific OD/ID dimensions or custom-cut PEEK hollow rods? Send us your required sizes or STEP/DWG part drawings for an immediate technical evaluation and quote within 12-24 hours.
Material overview
Understanding PEEK (Polyether Ether Ketone)
Why engineers use it
- Strong balance of heat, chemical and mechanical performance.
- Can be molded, extruded, machined or printed in suitable grades and equipment.
- Good fatigue and wear potential for demanding moving or loaded parts.
- Available in unfilled, glass-fiber, carbon-fiber and wear-modified grades.
- Suitable for precision components where long-term reliability justifies a specialty polymer.
Limits to consider
- High processing temperature requires capable equipment and controlled drying.
- Crystallinity, cooling and annealing can affect dimensions and performance.
- Reinforcement improves some properties but may reduce ductility or change machining behavior.
- Not every chemical, wear or medical application is covered by a standard industrial grade.
- PEEK can be unnecessary over-specification where PPS, PEI or another polymer meets the duty.
Grades and product forms
Unfilled PEEK provides the broad base-property balance. Glass-fiber grades generally target stiffness and dimensional control; carbon-fiber grades may add stiffness, strength and conductivity; bearing grades use fillers such as carbon, graphite or PTFE to tune friction and wear. Film, filament, powder, pellets and stock shapes each require different processing and purchasing information.
Performance points to review
| Evaluation area | Why it matters | Information to provide |
|---|---|---|
| Temperature behavior | Useful performance under elevated or changing temperature | Continuous and peak temperature, cycle length and time at load |
| Mechanical response | Strength and stiffness must match the real part geometry | Load direction, stress level, impact and fatigue expectations |
| Environmental resistance | Fluids, cleaning agents and atmosphere can change service life | Chemical name, concentration, temperature and exposure time |
| Dimensional control | Tight-tolerance parts depend on both material and processing | Finished dimensions, tolerances and assembly conditions |
| Electrical or insulation needs | Electrical requirements may influence grade and thickness | Voltage, dielectric, conductivity or insulation target |
These are engineering discussion points, not guaranteed property values. Final acceptance criteria should be agreed for the selected grade, process and order.
Typical application directions
These examples show where the material may be evaluated. They do not replace a suitability review for the finished component.
Fabrication and processing preparation
Share the finished part drawing as well as the requested rod diameter and length. This makes it possible to discuss machining allowance, tolerance, cut length, quantity and whether a closer starting size could reduce waste.
Where the application is critical, define what a successful trial looks like before material is ordered: dimensions after processing, visual condition, mechanical response, assembly fit or another measurable result.
When another material may be better
PPS, PEI, PSU/PPSU or a conventional engineering plastic may be more economical when temperature, chemical and mechanical requirements are moderate. PEEK is justified when several demanding requirements occur together or when service life and reliability outweigh raw-material cost.
We recommend sharing the current material and the reason it is being reconsidered. Cost, processability, supply form and inspection burden belong in the decision alongside technical performance.
Information needed for an accurate quotation
A useful RFQ reduces follow-up questions and helps us distinguish between a material request and a finished-part requirement.
| Product form | Raw material, stock shape, semi-finished blank or completed part |
|---|---|
| Dimensions | Nominal size, finished size and tolerances |
| Quantity | Trial quantity, first order and estimated annual demand |
| Application | Part function and current material, if any |
| Operating temperature | Continuous range, peak temperature and cycle duration |
| Environment | Chemicals, gases, moisture, pressure, vacuum or outdoor exposure |
| Mechanical duty | Load, speed, impact, wear and mating components |
| Documentation | Drawing revision, inspection, traceability or compliance needs |
Frequently asked questions
Can I request a sample or trial quantity?
Trial quantities can be discussed according to product form and availability. Tell us what you need to prove during the trial, the intended process and the expected production quantity if the test succeeds.
Do you provide a data sheet or material documentation?
Available documentation depends on the selected material and supply route. List the documents required by engineering, purchasing or quality when you inquire so they can be checked before quotation.
Can the grade be selected from a product name alone?
No. Similar product names can cover different grades, colors, fillers and processes. Selection should be based on the finished application, environment and required property balance.
Can you supply custom dimensions or finished parts?
Custom sizes, blanks or finished parts can be reviewed where appropriate. A drawing with tolerances, quantity and material requirement is the best basis for quotation.
How should we evaluate an alternative to our current material?
Share the current grade, the part’s service conditions and the reason for changing it. A useful comparison looks at failure mode, processing, life, inspection and total project cost—not only a single property value.
What determines lead time?
Lead time depends on product form, grade, size, quantity, documentation, machining and current availability. Confirm the required delivery date and destination with the RFQ rather than assuming a standard schedule.
Send the drawing, application and quantity. We will use the project details to prepare a practical material and supply discussion.
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