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100% 3K Braided Carbon Fiber Rectangular Tube Unidirection Weave

Minimum Order Quantity : Negotiable Price : Negotiable
Packaging Details : Normal Corrugated Carton Packing for International Shipment Delivery Time : 7 working days after receiving Order Pay
Payment Terms : T/T, Western Union, L/C Supply Ability : 1500pcs month
Place of Origin: China Brand Name: Tanku
Certification: SGS, ROHS Model Number: OEM

Detail Information

Features: High Strength, High Stiffness, And Lightweight Product Name: Carbon Fiber Rectangular Tube
Material Description: 100% Carbon Fiber Pattern: Twill, Plain
Shape: Rectangular Or Custom Technology: Roll-wrapped
Weaves: 3K Plain / 3K Twill / Unidirection Length Tolerance: +/-1mm
Density: 1.5g/cm^3 Port: Shanghai
High Light:

3K Braided Carbon Fiber Rectangular Tube


Unidirection Weave Carbon Fiber Tube


200mm Carbon Fiber Rectangular Tube

Product Description

Strong Corrosion Resistance 100% 3K Braided Carbon Fiber Rectangular Tube

Braided Carbon Fiber Square Tube is comprised of carbon fiber braid and unidirectional fabrics. This product is ideal for building lightweight frames and structures such as trusses. Our carbon fiber tubes have been engineered to be much stronger under torsional and side loading than pultruded tubing. They’re also significantly lighter than pultruded tubing. Our carbon fiber large tubes have been designed so that the unidirectional layers are captured, eliminating longitudinal cracking and splitting. The finish on this product is different from our other product lines. These tubes show the texture of the carbon fiber braid with a wet and shiny appearance.


Carbon Fiber Rectangular Tube manufactured by using the pultrusion technique in which the high-performance carbon fibres are all oriented parallel to the longitudinal axis (unidirectional) and internally reinforced with more unidirectional carbon fibres laminated by using pullwinding technology to achieve greater resistance to bending and torsion.


This type of profile has a high specific mechanical resistance (related to its weight), lightness, rigidity, great resistance to fatigue and vibrations, resistance to oxidation and corrosion, low coefficient of thermal expansion and durability.


Pultrusion is a technique of continuous production of linear profiles with a constant section. This process has many similarities to extrusion, the main difference is in the feeding system: in extrusion the material is pushed through the matrix (mould), in pultrusion it is extracted from the matrix. This procedure does not allow variations in shape, sections or curves. Products that can be obtained by this process can have sections or thicknesses of up to approximately 15mm, with epoxy resins and up to 70 mm with polyester resins.


Products made with this technology have excellent tensile strength properties due to the linear orientation of the fibres in the direction of axis of the profile; if it is also necessary to have a good transversal resistance, a woven fabric is used as a backing in specific quantities and weights.


Carbon Fiber Tube Applications:

  • Light Aircraft
  • Prototype Aircraft
  • Aerospace
  • Radar and GPS antennas
  • Communication towers
  • Stiffening and reinforcing beams
  • Wind power
  • Autonomous craft
  • Unmanned vehicle capture booms
  • Underwater equipment
  • Telescope housing
  • Large telescope truss tubing
  • High Altitude Craft
  • Robotic arms
  • Transport beams
  • Measurement devices
  • Electronics housing
  • Mining equipment
  • Performance arts and production
  • Oil and Gas down-hole applications
  • Printing rollers and guides
  • Truss Structures
  • Security gates
  • Photography and motion picture
  • Energy generation
  • Manufacturing beams
  • Product distribution
  • Medical equipment
  • Solar Energy
  • Fuel Cell housing

Carbon Fiber Tube Features:

  1. High strength and stiffness to weight
  2. Excellent resistance to fatigue
  3. Dimensional stability: Low CTE (Coefficient of Thermal Expansion)
  4. Resistance to corrosion
  5. X-Ray transparency
  6. Chemical resistivity

Carbon Fiber Tube Manufacturing Process :

4-Axis braiding is a process in which we braid carbon fibers over a mandrel. The braiding machine stays in one place and an aluminum mandrel traverses inside of the braiding hoop. The layer of braid is then wet-out with epoxy resin at a 2nd stage in the machine. The laminate is then consolidated and cured at 280F.


Braided composite structures offer extreme durability and toughness due to the interlocking fibers and no seams.
If damage does occur, it does not tend to propagate within the structure.

Typically braided carbon tubes have approximately 75% of fibers directly on the axis of the tube. These fibers are continuous fibers from one end of the part to the other. 10 % of the fibers are +/- 45 deg and around 15% are 90 deg (hoop)
We can make some adjustments to the percentages of fiber orientation; however, it is not possible to get high percentages of +/- 45 deg.

The inherent high percentage of fiber on the 0 axis makes a braided tube a very good compression or bending tube.
Because the machine stays in one place and the mandrel traverses, there is no length limitation to the parts that can be built (the building length, oven length, and mandrel lengths are limiting factors, but the process itself is not limited).

We typically braid longer length parts or larger manufacturing runs compared to pre-preg

Braided carbon fiber tubes tend to have more surface ripples and small voids in the laminate. This is not a structural issue but it can be a cosmetic issue and it may have an effect on the OD tolerance of the part.

Examples of some applications for braided tubing

Communications towers, large antenna assemblies, portable antennas, drone wing spars, aircraft structural tubing, sailboat spars, truss tubing, reinforcing tubes, spacer tubes, stiffening tubes, compression struts, GPS towers, high tension cable struts, awning support tubes, structural beams, low interference towers.


Material Carbon Fiber Rectangular Tube
Shape Rectangular or Custom
Technology Roll-wrapped or pultrusion
Dimension The existing inner diameter of the mold is 4mm-50mm with a length of 1m.
Customizable size: The maximum diameter can be 200mm, the longest can be 3m.
Surface Black glossy/matte surface/painted
Glossy 3k weave/matte 3k weave
Color metal wire weave
Feature lightweight, high strength
Working Temperature Usually, -30-120 degrees, if special requirement, please let us know.
Place Of Origin China
Function Marine, Agriculture Tools, Arrow Shaft, Medical, Sport Products
Tolerance Diameter Tolerance: +/-0.1mm
Length Tolerance +/-1mm

100% 3K Braided Carbon Fiber Rectangular Tube Unidirection Weave 0100% 3K Braided Carbon Fiber Rectangular Tube Unidirection Weave 1100% 3K Braided Carbon Fiber Rectangular Tube Unidirection Weave 2100% 3K Braided Carbon Fiber Rectangular Tube Unidirection Weave 3100% 3K Braided Carbon Fiber Rectangular Tube Unidirection Weave 4

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