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Product Brief

The GBTECH 5mm OD × 3mm ID × 250–1000mm carbon fiber tube is made with T300 carbon fiber and combines a compact circular profile with a 1mm wall thickness. Its 5mm outer diameter is suited to small-diameter lightweight structures where low mass, dimensional consistency and a clean profile are important. A matte surface with a diagonal weave appearance gives the tube a technical, low-glare finish. The 250–1000 мм standard length can be cut for prototypes, replacement parts and production assemblies. Custom dimensions and batch supply are available on request.

1. Product Specifications

2. Product Features

Lightweight circular profile: The 5mm OD profile is intended for compact assemblies where component mass and available space matter.

T300 carbon fiber: The specified T300 carbon fiber grade provides a consistent material basis for the GBTECH warehouse range in the US.

1mm wall thickness: A consistent 1mm wall provides a practical balance between low weight, internal clearance and structural form.

1000mm standard length: The one-metre tube gives designers flexibility to cut multiple shorter components or use a longer continuous member.

Matte diagonal-weave surface: The visible diagonal pattern and matte finish provide a clean, low-glare appearance for exposed components.

Corrosion-resistant composite construction: Carbon fiber composite does not rust like unprotected steel, making it useful in environments where moisture exposure is a consideration.

Custom production support: Alternative dimensions, lengths, finishes and end-processing requirements can be reviewed for prototype and volume orders.

3. Recommended Applications

· RC models and lightweight model structures

· Instrument supports and compact frames

· Lightweight linkages and guide elements

· Prototype assemblies and educational projects

Application suitability must be verified by the customer based on load, connection method, environment and required safety factor.

4. Processing and Installation

· Use tools suitable for carbon fiber composites.

· Control carbon dust during cutting or drilling and wear appropriate personal protective equipment.

· Seal or finish cut edges when required by the application.

· Select adhesives, inserts and clamping pressure according to the joint design.

· Avoid assuming the tube is suitable for a safety-critical load without engineering validation.

5. Customization Services

GBTECH can review custom requirements for outer and inner diameter, wall thickness, length, surface appearance, cutting and end finishing. To receive an accurate quotation, provide the required dimensions, quantity, tolerance, intended application and delivery country.

6. Pricing and Purchase Information

Price: Quoted according to quantity, dimensions and processing requirements

MOQ and lead time: Confirmed with the quotation

Shipping: International shipping options are available

Call to action: Request a Free Quote

7. FAQ

What does 5mm OD × 3mm ID × 250–1000mm mean?: The tube has a 5mm outer diameter, a 3mm inner diameter and a total length of 250–1000mm. The resulting wall thickness is 1mm.

Can the tube be supplied in another length?: Yes. Standard and custom lengths can be discussed when requesting a quotation.

Can carbon fiber tube be cut or drilled?: Yes, but suitable tooling, dust extraction and personal protection should be used. The final process depends on the required tolerance and joint design.

Is this tube suitable for my load?: Suitability depends on fiber architecture, resin system, span, load direction, joints and safety factor. Share the application requirements with GBTECH for product-selection support.

8. Related Products

· 250mm and 500mm versions of the same diameter

· Carbon fiber tubes in adjacent diameters

· Carbon fiber rods

· Carbon fiber sheets and fabrics

· Custom carbon fiber components