Carbon Fiber Tubes — Buyer's Guide

Choosing a Tube

DragonPlate® manufactures carbon fiber tubes using three distinct methods — roll-wrapped, braided, and pultruded — plus specialty geometries (airfoil, tapered, telescoping, large diameter) built on those constructions. Choosing the right tube comes down to two questions. The first is load type: is the tube primarily loaded in bending (a cantilevered arm, a mast), torsion and side-loading (a frame member, a truss), or straight axial compression/tension (a strut, a reinforcing member)? The second is finish and cost: does the application need a cosmetic gloss finish, or is the wet-braid or tooled look acceptable for a structural or hidden member?

Construction method drives mechanical behavior more than any other variable. Roll-wrapped tubes are built from multiple wraps of twill and/or unidirectional prepreg and deliver the highest bending stiffness at the lowest weight. Braided tubes use carbon braid captured around unidirectional fabric, trading some bending stiffness for superior torsional and side-load strength — and they're lighter than pultruded tubing at equivalent size. Pultruded tubes are pulled through an epoxy die for maximum straightness and rigidity at the lowest cost, but are optimized for axial loading rather than torsion or impact. Pick the construction your load case demands first, then the shape and finish that fit the application.

Which tube type should I choose?

Notes on the table: fiber modulus, max temperature, and finish availability vary by specific SKU within each category — confirm the exact combination on the individual product page before specifying. Wall thickness for round tubes generally follows OD/ID pairs published on each product listing rather than a single fixed value per line.

Frequently asked selection questions

What's the real difference between roll-wrapped, braided, and pultruded tubes?

The three methods trade off differently across stiffness, strength mode, and cost. Roll-wrapped construction — multiple wraps of twill and/or unidirectional prepreg — produces the highest bending stiffness and lowest weight of the three, which is why it's the standard choice for automation robotics, telescoping poles, idler rollers, and UAV components. Braided construction captures the unidirectional layers inside a carbon braid, which eliminates the longitudinal cracking and splitting that a purely unidirectional tube can develop, and gives braided tubes meaningfully better torsional and side-loading strength than pultruded tubing — at a lighter weight. Pultruded tubes are pulled through an epoxy die, which gives them exceptional straightness and rigidity in the axial direction at the lowest cost per tube, but they are not the right choice where torsional loading, impact resistance, or complex geometry are the driving requirement.

When do I need a braided tube instead of roll-wrapped?

When the load case includes meaningful torsion or side loading rather than pure bending. A robotic frame member, a truss strut, or any structure where load direction isn't purely axial will see less cracking and splitting risk in a braided tube than in a unidirectional pultruded one, and better torsional performance than a roll-wrapped tube optimized for bending. For pure bending stiffness at minimum weight — a cantilevered arm, a telescoping pole — roll-wrapped remains the stiffer, lighter option.

What's the difference between the standard braided carbon tube and the EconomyTube™ line?

Both use carbon braid over captured unidirectional fabric. EconomyTube™ is DragonPlate®'s cost-optimized braided line for applications where budget is the primary constraint and the full torsional-optimization of the standard or axially-optimized braided lines isn't required. High Modulus Braided tubes step up to 57 Msi (or higher) fiber for deflection-critical applications at a weight and cost premium over standard-modulus braided tubes.

Do I need square, rectangular, or hexagonal tubes instead of round?

Square and rectangular profiles are available in both roll-wrapped twill finish and braided construction, and are the right choice when the assembly needs flat mounting faces or predictable bolt-pattern layouts — connector systems, panel mounts, angular framing. Hexagonal braided tubes are a specialty option for applications needing a defined rotational reference or a distinct visual profile. For pure structural efficiency without a mounting-face requirement, round tubing offers the best strength-to-weight ratio for a given wall thickness.

Can DragonPlate® tubes be joined into modular structures without machining?

Yes. DragonPlate®'s patented ModCon™ modular connector system is engineered to join specific families of roll-wrapped, braided, and pultruded tubes and rods without welding, machining, or specialist fabrication. Pre-configured structural kits are available for common square-tube and round pultruded-tube frame geometries, in addition to standalone connectors for custom layouts. This is the fastest path to a rigid tube structure for drone frames, robotic assemblies, and portable or field-deployable structures.

What are Large Carbon Fiber Tubes, and are there any restrictions on their use?

Large Carbon Fiber Tubes cover structural diameters beyond standard stock sizing — inner diameters from roughly 8.625" up through 18" in standard lengths, with larger custom diameters available on request through Element 6 Composites. Important limitation: DragonPlate®'s large carbon fiber tubes are not intended or approved for use in aircraft, and the user is responsible for determining the safety and suitability of any structure built from them.

What is a telescoping tube system, and when do I need one?

Telescoping tubes are matched-taper roll-wrapped sections engineered to slide and lock into each other, producing an adjustable-length assembly from a compact stowed length. Standard Telescoping Tubes suit general positioning and camera/field applications; Rugged Telescoping Tubes are built for higher-load or higher-cycle field use. Deflection-Optimized Telescoping Tubes are available where minimizing tip deflection at full extension is the governing requirement. Telescoping Tube End Effectors & Connectors complete the assembly at each end.

What's a Streamlined Airfoil tube, and why would I choose it over a round tube?

Streamlined Symmetrical Airfoil tubing is a roll-wrapped tube with a NACA-style symmetrical airfoil cross-section rather than a round profile. Choose it when the structural member is exposed to moving air and drag reduction matters alongside structural stiffness — UAV spars and structural masts are the primary use case. For a purely structural member not exposed to airflow, round tubing is simpler to specify, mount, and join with standard connectors.

Sizes, Customization & Ordering

What sizes are available?

Round tube inner diameters range from roughly 0.06" up through 18" in standard stock, with lengths from 24" to 96" (longer lengths and custom diameters available on request). Square, rectangular, and hexagonal tubes are available in a range of standard inside and outside dimensions. Wall thickness varies by tube type and diameter — check the specific product listing, as OD/ID pairings are not uniform across the catalog.

Do you offer custom lengths, diameters, or laminate schedules?

Yes. CNC cutting, custom lengths, custom diameters, and specialized laminate schedules and ply orientations are available through Element 6 Composites. For applications outside standard stock — larger diameters, non-standard wall thickness, elevated-temperature resin systems, or hybrid reinforcement — contact DragonPlate® for a custom quote.

Can I join two tubes to make a longer length?

Yes. Carbon Fiber Tube Splices — available for roll-wrapped, braided, and pultruded families — fit inside the tube ends and bond in place with a structural adhesive (DragonPlate® recommends 3M Scotch-Weld 2216 epoxy) to create a continuous length beyond standard stock. Splices are not designed for slip-fit or non-bonded use.

Ordering basics

The listed price covers the tube itself — shipping, freight, taxes, and handling are calculated separately at checkout. Payment is prepaid by credit card, check, or wire; approved buyers may qualify for Net 30 terms. Bulk and volume pricing is available by quote for larger orders — contact DragonPlate® sales for manufacturing lead times on large-quantity runs.

Working with Carbon Fiber Tubes

Can I cut and drill tubes myself?

Yes. DragonPlate® carbon fiber tubes can be cut with common shop tools — a band saw, coping saw, scroll saw, jigsaw, or a Dremel-type rotary tool with a diamond wheel — and machined with an end mill for precision cuts. If cutting on a CNC machine, use carbide tooling. As with sheet stock, back the tube with sacrificial support when drilling to prevent fiber chipping at the exit face, and work with standard carbon fiber dust precautions: safety glasses, a dust respirator, ventilation, and HEPA capture.

What adhesive should I use to bond carbon fiber tubes?

Pultruded and roll-wrapped tubes are manufactured in an epoxy matrix and bond readily with 3M Scotch-Weld epoxies (2216 B/A, DP420, DP460NS, and others) or LOCTITE EA-series structural epoxies — the same adhesives recommended for DragonPlate® sheet stock. Full datasheets are available on the Weights & Specs page.

Are there limitations to know before I buy?

DragonPlate®'s large carbon fiber tubes are not intended or approved for use in aircraft. Pultruded tubes are optimized for axial straightness and rigidity, not high-impact or complex-shape applications — hybrid or braided Kevlar tubes are the better fit where impact resistance matters. As with sheet products, carbon fiber/epoxy tubes are not thermoformable. Users are responsible for the design and testing of any structure built from DragonPlate® tube and connector products, including determining safety and suitability for their own application.

Company & Quality

Are DragonPlate® tubes made in the USA?

Yes. DragonPlate® manufactures its products at the company's ISO 9001:2015-certified facility in Elbridge, New York. DragonPlate® uses first-quality materials only, never off-spec, expired, or surplus prepregs.

Support: 315-252-2559 (Mon–Fri, 8:30am–5:00pm ET) · service@dragonplate.com · Contact Us