Square Carbon Fiber Tube 200mm — RC Airplane & Model Build
Square Carbon Fiber Tube 200mm — RC Airplane & Model Build
Square Carbon Fiber Tube 200mm — RC Airplane & Model Build
Square Carbon Fiber Tube 200mm — RC Airplane & Model Build
Square Carbon Fiber Tube 200mm — RC Airplane & Model Build
Square Carbon Fiber Tube 200mm — RC Airplane & Model Build
Square Carbon Fiber Tube 200mm — RC Airplane & Model Build
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Square Carbon Fiber Tube 200mm — RC Airplane & Model BuildSquare Carbon Fiber Tube 200mm — RC Airplane & Model BuildSquare Carbon Fiber Tube 200mm — RC Airplane & Model BuildSquare Carbon Fiber Tube 200mm — RC Airplane & Model BuildSquare Carbon Fiber Tube 200mm — RC Airplane & Model BuildSquare Carbon Fiber Tube 200mm — RC Airplane & Model BuildSquare Carbon Fiber Tube 200mm — RC Airplane & Model Build

Square Carbon Fiber Tube 200mm — RC Airplane & Model Build

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Beschreibung

Square Carbon Fiber Tube 200mm — Lightweight Structural Tubing for RC Airplanes & Model Builds

When every gram counts and structural failure isn't an option, builders of RC airplanes, drones, and precision scale models need tubing that delivers real rigidity without adding dead weight. Aluminum bends, fiberglass flexes, and wood warps — but a square carbon fiber tube holds its shape under stress, vibration, and repeated loading cycles that would fatigue lesser materials.

Each piece in this listing is a pultruded square carbon fiber tube, 200mm (≈7.87") long, with a gloss black finish. Available outer dimensions run from 3mm (≈1/8") up to 10mm (≈3/8"), with wall thicknesses that are typically 0.5mm on the smaller sizes and 1mm on the larger sizes — giving you a range of inner bores from 2mm to 8mm. Order as a single piece or in sets of 4, 10, or 20 to stock your build bench.

These square carbon fiber tubes are well suited for RC airplane wing spars and fuselage stringers, lightweight drone frame rails, push rod guides in control linkages, and structural members in architectural scale models. Their consistent cross-section makes them easy to slot into standard square tube clamps and frame connectors used across the RC hobby and model-engineering communities.

🔗 Compatibility: Fits standard square tube clamps and frame slots sized to match the selected OD (3 / 4 / 5 / 6 / 8 / 10 mm). Verify your hardware's inner channel dimension before ordering.

✅ Key Features of These Square Carbon Fiber Tubes

  • ⚖️ Low Weight, High Stiffness — Carbon fiber composite construction delivers a stiffness-to-weight ratio that outperforms aluminum tubing of the same cross-section, keeping your RC airplane or drone frame light without sacrificing rigidity.
  • 📐 Six OD Options in One Listing — Choose from 3×3mm, 4×4mm, 5×5mm, 6×6mm, 8×8mm, or 10×10mm outer dimensions to match your plan's specified spar or rail size exactly, eliminating guesswork and fitment issues.
  • 📏 Consistent 200mm Length — Every tube ships at a uniform 200mm (≈7.87") length, making them easy to use as-is for standard spar runs or to cut down with a rotary tool for shorter structural members.
  • 🛡️ Corrosion-Free Construction — Carbon fiber and epoxy resin do not rust or oxidize, making these tubes a reliable choice for outdoor RC airplane use and builds that will see varying humidity and temperature conditions.
  • 🔲 Square Profile for Positive Clamp Engagement — The flat faces of a square carbon fiber tube resist rotation inside clamps and connectors, providing a more secure mechanical connection than round tubing in torque-loaded joints.
  • 📦 Flexible Quantity Packs — Available in 1, 4, 10, and 20-piece options so you can grab a single piece for a repair or stock up for a full multi-model build run at a lower per-piece cost.

📐 Technical Specifications — Square Carbon Fiber Tube

Material Carbon fiber reinforced epoxy composite (pultruded)
Profile Square hollow tube
Finish Gloss black
Length 200mm (≈7.87")
Available OD × ID 3×2mm | 4×3mm | 5×4mm | 6×5mm | 8×6mm | 10×8mm
Wall Thickness (typical) 0.5mm (3–6mm OD sizes) / 1mm (8–10mm OD sizes)
Quantity Options 1 pc / 4 pcs / 10 pcs / 20 pcs
Tensile Strength See variant options — contact us to confirm for load-critical use
Compatible Hardware Standard square tube clamps and frame connectors matching selected OD
Recommended Applications RC airplane spars, drone frame rails, model structural members, push rod guides
⚠️ Note: Always wear a dust mask and eye protection when cutting carbon fiber. Carbon fiber dust is an irritant — sand cut edges smooth after trimming.

❓ Frequently Asked Questions

How do I choose the right size square carbon fiber tube for my project?

Match the outer dimension (OD) to your frame slot or clamp opening. For example, a 5×5mm OD tube fits a 5mm square channel. The inner dimension (ID) determines the bore — useful for routing push rods or wiring internally. All tubes in this listing are 200mm (≈7.87") long. If you need a different length, contact us before ordering.

Quick reference: 3mm OD → 2mm ID | 4mm OD → 3mm ID | 5mm OD → 4mm ID | 6mm OD → 5mm ID | 8mm OD → 6mm ID | 10mm OD → 8mm ID.

How strong are these square carbon fiber tubes?

Carbon fiber composite tubes are generally significantly stiffer and stronger per unit weight than aluminum or fiberglass equivalents. For typical RC airplane spar and drone frame rail applications, these tubes handle the bending and vibration loads encountered in lightweight airframe construction. For load-critical engineering applications, contact us to confirm the specific fiber layup and resin specifications.

Can these tubes be used outdoors or in wet conditions?

Carbon fiber itself does not rust or corrode, and the epoxy resin matrix provides good moisture resistance for typical outdoor RC use. These tubes are suitable for outdoor RC airplane and drone use in normal weather. For prolonged submersion or exposure to harsh chemicals, additional sealing is generally recommended.

Are these tubes compatible with standard RC hardware and connectors?

Yes. The outer dimensions (3mm, 4mm, 5mm, 6mm, 8mm, 10mm) correspond to common square tube clamp and frame connector sizing used in RC airplane and drone construction. Always verify that your clamp or connector's inner channel dimension matches the tube OD you select before ordering.

Can I cut these tubes to a shorter length?

Yes. Carbon fiber tubes can generally be cut with a rotary tool fitted with a cutting disc, a fine-tooth saw, or a diamond-coated cutting wheel. Always wear a dust mask and eye protection — carbon fiber dust is an irritant. Sand cut edges smooth after trimming to prevent delamination at the cut face.

Which size should I choose for a typical RC airplane wing spar or fuselage stringer?

For small park flyers and micro RC models, the 3×3mm or 4×4mm tubes are typically sufficient. Mid-size sport models generally use 5×5mm or 6×6mm tubes. Larger or heavier builds often benefit from the 8×8mm or 10×10mm options. Always match the tube size to the dimension specified in your build plan for best structural results.

How many pieces do I need to order for a typical build?

A single RC airplane wing typically requires 2 spar tubes. A full airframe with fuselage stringers may use 4–10 pieces depending on the design. Ordering a 4-pack or 10-pack is generally more cost-effective for multi-build projects or to keep spares on hand. The 20-pack option is ideal for workshop stock or club group orders.

🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.

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