3K Carbon Fiber Round Tubes
High-performance CFRP | Aerospace · Robotics · Drone · Medical
DISLAB‑CARBON’s 3K Carbon Fiber Round Tubes are manufactured from 100% pure continuous carbon fiber reinforced polymer (CFRP) using advanced pultrusion and roll‑wrapping processes. These lightweight, high-strength tubes feature a 3K twill or plain weave finish, offering exceptional rigidity, corrosion resistance, and dimensional stability. Available in full range OD, ID, wall thickness and custom lengths.
⚡ Tensile strength ≥3000 MPa (6–12× steel) · Elastic modulus ≥165 GPa · Density 1.6–1.65 g/cm³
📋 Core Specifications
| Feature | Details |
|---|---|
| Product Name | 3K Carbon Fiber Round Tubes |
| Material | 100% pure 3K carbon fiber composite (continuous carbon fiber + thermoset resin) |
| Available Grades | 1K, 1.5K, 2K, 3K, 6K, 8K, 12K (3K standard) |
| Surface Finish | Matte or glossy, plain weave / twill weave; custom colors available |
| Mechanical Performance | Tensile strength ≥3000 MPa, elastic modulus ≥165 GPa, density 1.6–1.65 g/cm³ |
| Customization | OD/ID, wall thickness, length, cut-to-size, CNC drilling, cross-holes, slots, iron grooves |
| Lead Time | 24h quotation, rapid prototyping (3–7 days), bulk stable delivery |
| OEM/ODM | Full custom specs, colors, processing solutions |
🏆 Core Product Advantages
Superior Strength-to-Weight Ratio
Continuous carbon fiber delivers exceptional rigidity at a fraction of metal weight — ideal for drones, aerospace, robotics.
High Mechanical Performance
Tensile strength >3000 MPa & elastic modulus ≥165 GPa ensure reliable performance under heavy loads and dynamic stress.
Durability & Environmental Resistance
Corrosion‑resistant, UV‑resistant, impact‑resistant composite for outdoor, marine or harsh industrial environments.
Smooth Surface & Precision Machining
Burr-free finish, excellent insulation, CNC machinable (drilling, slots, cross-holes) to exact project requirements.
🚀 Applications & Problem‑Solving
🛩️ Aerospace & New Energy Equipment
Structural supports, frames. Traditional metal adds weight, reduces efficiency. Carbon fiber tubes cut weight significantly while maintaining strength, boosting performance.
🤖 Medical Devices & Robotics
Medical frames, robotic arms. Lightweight, non‑magnetic, corrosion‑resistant, high rigidity for precise, reliable operation.
✈️ Drones & Outdoor Sports
Drone arms, tripod legs, bicycle frames, fishing rods. Replace aluminum/steel bulk; lightweight, durable, corrosion-proof for humid/coastal use.
🏗️ High-End Construction & Custom Projects
Structural & decorative elements. Combines strength, aesthetics, and durability with custom finishes to match design requirements.
🧶 3K Twill & Plain Weave Finishes
Our 3K carbon fiber tubes feature genuine carbon weave pattern – available in matte or glossy, twill or plain weave. The 3K tow offers a finer, smoother surface ideal for both structural and cosmetic applications. Custom colors and specialty weaves (1K to 12K) are available. Unlike fake carbon coatings, our 100% continuous fiber construction ensures authentic composite strength and durability.
Perfect for drone arms, visible structural parts, sports equipment, and premium industrial designs.
⚙️ Precision CNC Machining & Secondary Processing
We provide complete custom processing: cut-to-length, cross holes, slotting, iron grooves, and end finishing. Our tubes maintain strict tolerances and a burr‑free surface. From prototype sampling (3–7 days) to high-volume orders, our engineering team supports OEM/ODM projects with rapid lead times and stable quality. Secondary processing ensures ready-to-assemble components.
✔ Drilling ✔ Cross-holes ✔ Slots ✔ Grooves ✔ Any length cutting
🎨 Full Customization: Colors, diameters & wall thickness
Beyond classic black, we offer custom-colored carbon fiber tubes for distinctive projects. Outer diameter, inner diameter, wall thickness, length, and even surface painting can be tailored to exact requirements. Our 3K tubes are visually adaptable for luxury automotive, medical enclosures, and high‑end sports gear. OEM/ODM solutions with drawing support.
📐 Any OD×ID×Length combination · Fast quotation · Global shipping
📌 Real Customer Case – Drone Component Supplier
📏 Standard Customizable Dimensions (Examples)
| Type | Outer Diameter (OD) | Inner Diameter (ID) | Wall Thickness | Length (custom) |
|---|---|---|---|---|
| Thin wall | 6 mm | 4 mm | 1.0 mm | Any length (mm/inches) Cut-to-size |
| Thin wall | 8 mm | 6 mm | 1.0 mm | |
| Thin wall | 10 mm | 8 mm | 1.0 mm | |
| Standard | 12 mm | 10 mm | 1.0 mm | |
| Standard | 14 mm | 12 mm | 1.0 mm | |
| Standard | 16 mm | 14 mm | 1.0 mm | |
| Standard | 20 mm | 18 mm | 1.0 mm | |
| Medium | 25 mm | 23 mm | 1.0 mm | |
| Medium | 30 mm | 28 mm | 1.0 mm | |
| Thick wall | 14 mm | 6 mm | 4.0 mm | Custom lengths OEM/ODM |
| Thick wall | 18 mm | 10 mm | 4.0 mm | |
| Thick wall | 20 mm | 12 mm | 4.0 mm |
❓ Frequently Asked Questions
Contact our sales team for any OD × ID × Length combination.
✈️ Global shipping | High quality | Custom drawing support
DISLAB‑CARBON – 18+ years of carbon fiber expertise · OEM/ODM · Rapid prototyping · Bulk orders