Carbon Fiber Tube
High strength carbon fiber tubing fabricated with unidirectional prepreg and wrapped in 3K plain or twill fabric, in fifteen stock part numbers from 5.0 mm to 242.0 mm nominal inside diameter.
What This Part Is and Why It Exists
High strength carbon fiber tubing is fabricated with unidirectional carbon fiber prepreg. Unlike metal tubing, carbon fiber tubing is designed with layers of fibres oriented at different angles to provide properties designed for a specific application, which is why two tubes of the same diameter can behave completely differently.
A variety of types or grades of carbon fiber tubing are available, as well as various exterior materials. Stock part numbers span standard modulus, high modulus and ultra high modulus grades, wrapped in either 3K plain fabric or 3K twill fabric, all at 1000 mm length.
Four Reasons Buyers Specify This Part
Fibre Placed Where the Load Is
Layers oriented at different angles give properties designed for a specific application, rather than one fixed property like metal tube.
Fifteen Stock Part Numbers
From CT-5.0-7.0 up to CT-236.0-242.0, so most projects find a stock size before paying for a custom wrap.
Three Modulus Grades
Std-Mod, High-Mod and UHM, so stiffness can be raised without adding wall thickness.
Plain or Twill Exterior
3K plain or 3K twill fabric on the outside, in matte or gloss finish.
Where This Part Is Used
- UAV booms and camera rig spans
- Robotic and machine structural members
- Rollers, shafts and idlers where inertia matters
- Sports equipment shafts and frames
Buyers This Part Was Made For
- Machine builders replacing steel or aluminium tube
- UAV and gimbal designers sizing booms
- Equipment makers needing long, light, rigid spans
Three Failure Modes This Part Removes
Metal tube is one compromise
Steel or aluminium gives you a single stiffness for a single weight; composite lets you choose.
Deflection over long spans
A long metal span sags under its own weight; a UHM composite tube of the same diameter does not.
Rotating mass
In rollers and shafts, inertia costs power on every start and stop.
Technical Data for Carbon Fiber Tube
Every value below is taken from the published CarbonWizer specification for this part. Anything not published is marked TBC rather than estimated.
| Construction | Unidirectional carbon fiber prepreg, roll wrapped |
| Grades | Std-Mod, High-Mod, UHM |
| Exterior Material | 3K plain fabric or 3K twill fabric |
| Nominal ID Range | 5.0 mm to 236.0 mm |
| Nominal OD Range | 7.0 mm to 242.0 mm |
| Wall Thickness | 1.0 mm to 4.0 mm across the stock range |
| Standard Length | 1000 mm |
| Finish | Matte or gloss |
| Certification | TBC - confirm in writing before order |
Technical Features
- Fabricated with unidirectional carbon fiber prepreg
- Fibre layers oriented at different angles per application
- Std-Mod, High-Mod and UHM grades
- 3K plain fabric or 3K twill fabric exterior
- Standard length 1000 mm
- Nominal inside diameter 5.0 mm to 236.0 mm
Materials
Unidirectional carbon fiber prepreg for the structural layers, with a 3K plain or 3K twill fabric exterior. Tube is produced by roll wrapping, one of the carbon fiber processing routes CarbonWizer runs in house.
| P/N | Nominal ID | Nominal OD | Wall | Length | Type | Exterior Material |
|---|---|---|---|---|---|---|
| CT-5.0-7.0 | 5.0 mm | 7.0 mm | 1.0 mm | 1000 mm | Std-Mod | 3K Plain Fabric |
| CT-8.0-10.0 | 8.0 mm | 10.0 mm | 1.0 mm | 1000 mm | Std-Mod | 3K Twill Fabric |
| CT-10.0-12.0 | 10.0 mm | 12.0 mm | 1.0 mm | 1000 mm | Std-Mod | 3K Twill Fabric |
| CT-12.0-14.0 | 12.0 mm | 14.0 mm | 1.0 mm | 1000 mm | Std-Mod | 3K Twill Fabric |
| CT-14.0-16.0 | 14.0 mm | 16.0 mm | 1.0 mm | 1000 mm | Std-Mod | 3K Twill Fabric |
| CT-16.0-18.0 | 16.0 mm | 18.0 mm | 1.0 mm | 1000 mm | Std-Mod | 3K Twill Fabric |
| CT-15.0-18.0 | 15.0 mm | 18.0 mm | 1.5 mm | 1000 mm | Std-Mod | 3K Twill Fabric |
| CT-16.0-20.0 | 16.0 mm | 20.0 mm | 2.0 mm | 1000 mm | Std-Mod | 3K Twill Fabric |
| CT-22.0-25.0 | 22.0 mm | 25.0 mm | 1.5 mm | 1000 mm | Std-Mod | 3K Twill Fabric |
| CT-25.0-27.0 | 25.0 mm | 27.0 mm | 1.0 mm | 1000 mm | Std-Mod | 3K Twill Fabric |
| CT-27.0-30.0 | 27.0 mm | 30.0 mm | 1.5 mm | 1000 mm | Std-Mod | 3K Twill Fabric |
| CT-45.0-48.0 | 45.0 mm | 48.0 mm | 1.5 mm | 1000 mm | High-Mod | 3K Twill Fabric |
| CT-130.0-132.0 | 130.0 mm | 132.0 mm | 1.0 mm | 1000 mm | High-Mod | 3K Plain Fabric |
| CT-132.0-140.0 | 132.0 mm | 140.0 mm | 4.0 mm | 1000 mm | UHM | 3K Plain Fabric |
| CT-236.0-242.0 | 236.0 mm | 242.0 mm | 3.0 mm | 1000 mm | UHM | 3K Plain Fabric |
How This Part Is Made
Application review
Drawing, load case and finish reviewed against the geometry.
Fibre angle selection
Material, fibre architecture and process selected for the part.
Roll wrapping
The part is formed by the chosen composite or machining route.
Cure
Cure or finish machining brings the part to final geometry.
Grind and finish
Surface and edges finished to the agreed appearance.
Cut to length
Dimensions checked against the drawing before despatch.
Quality Control
Tube is produced to the stated nominal inside and outside diameter and wall thickness. Cut lengths are checked before despatch.
Certifications: No third-party certification records were published on the previous CarbonWizer site. Certification status for this part is marked TBC and is confirmed in writing before an order is placed.
What Can Be Changed
- Custom inside and outside diameter outside the stock table
- Fibre angles selected for the specific load case
- Matte or gloss exterior in plain or twill fabric
- Cut to length, drilled or bonded with metal end fittings
How It Compares
| Roll wrapped UD carbon tube | Fibre angle chosen per application; the best stiffness per gram of the three |
| Pultruded carbon tube | Cheaper for straight axial loads, but weak in torsion and hoop |
| Aluminium tube | Easy to machine and join, but several times heavier for the same bending stiffness |
How to Specify and Order This Part
Start from the deflection limit and the span, not the diameter - diameter is what you solve for. State whether the tube sees bending, torsion or both, because that decides the fibre angles. For bonded end fittings, allow a bond length of several times the wall thickness.
Parts Often Specified Alongside This One
Carbon Fiber Sheet
Stock carbon fiber plates fabricated from multiple layers of high strength prepreg under high pressure moulding, in ten thicknesses from 0.5 mm to 5.0 mm at 500 x 400 mm.
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Carbon Fiber Drone Parts
Frames, arms, plates and propellers in carbon fiber composite, which cut roughly 40 per cent of the weight against traditional materials and directly extend flight duration.
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Carbon Fiber Structural Arm
A full carbon fiber arm made as a verification sample, carrying the strength and stiffness of a production composite part so the structure can be tested before a mould is cut.
View detailsRelated Cases and Technical Guides
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Carbon Fiber Bicycle Programme
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Read the caseCarbon Fiber Tube or Plate for a Structural Member
Tube is far more efficient in bending and torsion. Plate is easier to attach to and cheaper to machine. The choice usually comes down to how the member is loaded and how it connects.
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Read the guideQuestions About Carbon Fiber Tube
What sizes are available from stock?
Fifteen stock part numbers run from CT-5.0-7.0 at 5.0 mm nominal inside diameter up to CT-236.0-242.0 at 236.0 mm, all at 1000 mm length.
What is the difference between the grades?
Std-Mod, High-Mod and UHM describe increasing fibre modulus. A higher modulus grade raises stiffness without adding wall thickness.
Why is composite tube different from metal tube?
Unlike metal tubing, carbon fiber tubing is designed with layers of fibres oriented at different angles to provide properties designed for a specific application.
Can you make a size that is not in the table?
Yes. A variety of types and grades are available, as well as various exterior materials, so custom diameters and wall thicknesses are quoted on request.
Quote Carbon Fiber Tube for Your Project
Email the drawing or the part number with the quantity and finish you need. Samples are normally despatched within one week.