25mm×2mm Carbon Fiber Tube: The Perfect Balance of Precision Specifications and Performance

The 2mm-thick, 25mm-diameter carbon fiber tube​ is a high-performance hollow tubular profile manufactured using carbon fiber prepreg through roll-wrapping or pultrusion molding techniques.

Its core advantages lie in exceptional lightweight properties​ (with a density only one-fourth that of steel, reducing weight by approximately 60% compared to traditional metal tubes) and ultra-high strength​ (capable of withstanding over 5000N in laboratory three-point bending tests).

By adjusting the carbon fiber weaving angle and resin formulation, its axial stiffness and radial compressive performance can be optimized. Additionally, specialized surface treatment processes enhance the bonding strength with metal connectors

The pictures of several carbon fiber tubes contain product detailsHigh-End Sports and Equipment:

Suitable for applications such as drone frames, model aircraft skeletons, and bicycle frames, it combines lightweight properties, high strength, and fatigue resistance, enhancing device performance and handling experience.

Industrial Equipment and Robotics:​

Used in robotic arm linkages and high-precision transmission shafts, it reduces moment of inertia, improving operational efficiency and stability.

Consumer Electronics and Smart Wearables:​

Applied in AR/VR device skeletons and laptop hinges, it reduces weight while enhancing product durability and a technological aesthetic.

Specialized Fields:​ In medical devices (e.g., rehabilitation braces) and aerospace (e.g., satellite supports) where stringent weight and strength requirements exist, it provides reliable lightweight solutions.

This specification of carbon fiber tube supports CNC precision machining​ (e.g., laser cutting, waterjet cutting) and can undergo surface functional modifications (e.g., hydrophobic coatings, electromagnetic shielding coatings) to meet diverse customization needs. Its low thermal expansion coefficient and corrosion resistance also make it suitable for long-term use in environments with significant temperature variations or corrosive conditions.

Parameter Category Specific Item Technical Specification / Parameter Details Notes / Explanation
Basic Specifications Outer Diameter Range Round Tube: 1mm – 120mm (Common), up to 2600mm (plate maximum noted) Square tubes and custom profiles are available
Wall Thickness Range 0.5mm – 5mm (Common), examples up to 20mm noted Uniform wall thickness is critical for performance
Common Lengths 1m, 2m, 5m (Custom lengths available, up to 3m or 12m noted) Customization is a key service offered by manufacturers
Surface Finish Matte, Glossy, Plain Weave, Twill Weave (e.g., 3K Twill) Combines aesthetics with functionality
Physical & Mechanical Properties Density 1.5 – 1.65 g/cm³ Approximately 1/4 to 1/5 the density of steel, significant lightweighting effect
Tensile Strength ≥3000 MPa, can be 6-12 times that of ordinary steel
Elastic Modulus ≥165 GPa, examples up to 240 GPa noted Excellent creep resistance
Bending Strength Withstands over 5000N in laboratory three-point bending test (for reference size) Related to lay-up design and resin system
Coeff. of Thermal Expansion <1.5×10⁻⁶/℃ (Axial) Excellent dimensional stability, suitable for precision applications
Service Temperature -50℃ to 180℃ (Long-term), short-term higher temperatures tolerable Range can be extended with special high-temperature resins
Corrosion Resistance Resists pH 3-11 acid-base environments and salt spray corrosion Service life can be 3-5 times longer than metals in corrosive conditions
Production Process & Precision Primary Processes Pultrusion (High efficiency, large batch), Filament Winding (High hoop strength), Roll Wrapping (Prepreg) Different processes suit different performance needs
Fiber Lay-up 0°/90° orthogonal or ±45° twill, etc., can be optimized for stress conditions Lay-up design directly affects anisotropic properties
Dimensional Tolerance Outer diameter/length tolerance can reach ±0.05mm – ±0.1mm Guaranteed by high-precision CNC machining
Application-Related Parameters Service Life Generally over 15 years, can reach 25 years or more (depends on environment) Outstanding anti-aging properties
Connection Methods Adhesive bonding (epoxy, etc.), dedicated mechanical connectors, pre-embedded composite connections Professional design is required to ensure connection strength