Rectangular carbon fiber tubes offer high strength, low weight, and excellent rigidity for applications ranging from drones and RC crafts to structural frames and custom builds. The following selections highlight various sizes and finishes to fit a wide range of needs. Use the buying guide below to compare dimensions, wall thickness, and compatibility with coatings or bonding methods.
| Product | External Size | Length | Material Finish | Notes |
|---|---|---|---|---|
| 1pcs 600MM Carbon Fiber Tube | 50×47 mm | 600 mm | 3K Twill Matte | High strength, lightweight; cut to length |
| 2pcs 600MM Carbon Fiber Tube | 16×14 mm | 600 mm | 3K Twill Matte | Ultra-light, UV resistant |
| 1pcs Carbon Fiber Tube 50x47x500 | 50×47 mm | 500 mm | 3K Twill Matte | Good balance of size and length |
| 2pcs 25x23x420 Carbon Fiber Tube | 25×23 mm | 420 mm | 3K Twill Matte | Compact, strong for small frames |
| uxcell 4 x 6 x 420mm Tubes | 4×6 mm | 420 mm | Plain Weave Glossy | Versatile for RC and DIY projects |
1pcs 600MM Carbon Fiber Tube 50x47x600MM

Tube size: External diameter 50 mm, internal diameter 47 mm, thickness 1.5 mm, length 600 mm. This tube offers high strength and light weight, outperforming aluminum and steel in many load-bearing scenarios while resisting corrosion, water, heat, and fatigue. Made from pure 3K carbon fiber with a matte finish, it is ideal for surface coating and adhesive bonding applications and can be cut to length with an abrasive chop saw.
2pcs 600MM Length Carbon Fiber Tube 16×14

Tube size: External diameter 16 mm, internal diameter 14 mm, thickness 1.0 mm, length 600 mm. This configuration provides high strength with low weight, UV resistance, and full 3K carbon fiber material quality imported from Japan. Suitable for lightweight frames and precision assemblies, with a matte finish ready for bonding.
1pcs Carbon Fiber Tube 50x47x500mm

Dimensions: outside diameter 50 mm (±0.1 mm), inner diameter 47 mm, wall thickness 1.5 mm, length 500 mm. Delivers high strength with lightweight properties, plus strong resistance to corrosion, water, heat, and fatigue. Made from pure 3K carbon fiber and finished in matte for easy surface bonding and coating, with cut-to-length capability using abrasive chop saw.
2pcs 25x23x420 Carbon Fiber Tube

Dimensions: outside diameter 25 mm (±0.1 mm), inner diameter 23 mm, thickness 1.0 mm, length 420 mm. Features high strength and lightweight properties, with corrosion, water, heat, and fatigue resistance. The tube uses pure 3K carbon fiber material and a matte finish suitable for coating and bonding; can be cut to length with an abrasive chop saw.
uxcell 2Pcs Carbon Fiber Tubes 4x6x420mm

Tube specifications: diameter 4 mm internal, 6 mm external, 420 mm length. This product features a Plain Weave gloss surface and uses 3K rolled carbon fiber. It is easily cut to length with a chop saw, and is suitable for RC drones, kite spars, and DIY projects needing compact, high-strength tubing.
Buying Guide
- Size and fit: Choose external and internal diameters that match your connector or mounting hardware. thicker walls increase stiffness but add weight.
- Length and cutting: Most tubes can be cut to length; plan for future adjustments and ensure your tool can safely cut composite material.
- Finish and bonding: Matte finishes are ideal for coating and adhesive bonding, while glossy finishes may reduce some bonding friction in certain setups.
- Strength-to-weight: 3K carbon fiber tubes typically offer superior strength-to-weight ratios over metal tubes; consider allowable load and vibration characteristics for your application.
- UV and environmental exposure: Some tubes advertise UV resistance and environmental stability—important for outdoor or high-heat environments.
- Cost vs. quantity: Bulk packs may provide better value for hobby builds; compare per-unit cost and needed lengths to minimize waste.
- Compatibility: Verify wall thickness and inner diameter for precise fit with bearings, fasteners, or other components.
Note: Prices are not listed here. Product features emphasize lightweight strength, corrosion resistance, and the ability to be machined or bonded as needed for versatile builds.