Carbon Fiber C‑Channels

Our pultruded Carbon Fiber C‑Channels & U‑Channels deliver ultra‑lightweight, high‑stiffness profiles for modular framing and trim.

Key Benefits: 60 % lighter than steel, ±0.05 mm dimensional accuracy, and excellent corrosion resistance.

Top Features: Superior flexural strength, fast CNC‑ready machining, and stable performance across −50 °C–180 °C.

Ideal for automotive chassis, architectural façades, and industrial supports—boosting performance while cutting weight.

Request your free sample today from our ISO 9001‑certified factory and elevate your design with proven carbon‑fiber expertise.

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Carbon Fiber C‑Channels & U‑Channels
— C‑ & U‑Shaped Pultruded Profiles · Ultra‑High Specific Strength · Modular Structural Rails
Version: 2025‑C/U‑Pro


1. Product Definition

Our Carbon Fiber C‑Channels and U‑Channels are single‑opening thin‑wall profiles with “C” or “U” cross‑sections. The only difference is the lip angle: C‑Channels have slightly inward‑curved flanges, while U‑Channels have vertical flanges. Manufactured in one step by high‑temperature pultrusion or compression molding using T700/T800 carbon fiber and epoxy/vinyl ester resin, they produce continuous, corrosion‑proof, ultra‑lightweight rails up to 6 m long.


2. Core Advantages

  1. Superior Strength‑to‑Weight: Density 1.55 g/cm³, tensile strength 2 500–3 500 MPa; 50–70 % lighter than equivalent aluminum profiles.
  2. Corrosion Resistance: No mass loss after 1 000 h salt spray—ideal for marine and chemical environments.
  3. Non‑magnetic & Insulating: Perfect for MRI suites and radar‑sensitive enclosures.
  4. Modular & Quick‑Fit: Pre‑drilled holes and end‑face tapping enable field assembly with no welding required.
  5. Continuous Lengths: Pultrusion yields straightness ≤ 0.5 mm/m for lengths up to 6 m.

3. Manufacturing Routes

  • Pultrusion: Impregnate continuous fibers → Heat die → Pull & cut (1–2 m/min).
  • Compression Molding: High precision (± 0.1 mm tolerance) for short runs and local reinforcements.
  • Post‑Processing: CNC slotting, M3–M12 tapping, laser marking, matte/gloss clear coats.

4. Standard Stock Sizes

(2 mm wall standard; 3/4/5 mm optional)

TypeHeight H (mm)Flange B (mm)Wall t (mm)Weight (kg/m)Ix (cm⁴)Typical Applications
C‑30×20×230202.00.282.1UAV frames, camera rails
C‑40×25×240252.00.384.7Automotive door edge guards
C‑50×30×250302.00.489.2Sports equipment frames
C‑60×40×360403.00.9025.6Industrial fixtures
C‑80×50×380503.01.2058.4Exhibition trusses
U‑25×15×225152.00.241.8Robotic cable trays
U‑30×20×230202.00.303.3Camera booms
U‑40×25×2.540252.50.467.2Automotive sill reinforcements
U‑50×30×350303.00.6914.1RV floor crossbeams
U‑60×40×460404.01.2030.6Solar tracker supports
Carbon Fiber C‑Channels
Carbon Fiber C‑Channels

Customizable: Height up to 300 mm, flange width up to 200 mm, wall thickness 1.5–8 mm, lengths ≤ 6 m.


5. Mechanical Properties (U‑50×30×3)

PropertyValue
Density1.55 g/cm³
Tensile Strength2 800 MPa
Flexural Modulus160 GPa
Interlaminar Shear85 MPa
Operating Temperature−40 °C to 180 °C

6. Joining & Assembly

  • Flange Holes: Standard M6/M8 counterbores, 50 mm spacing
  • Corner Brackets: 90°/120° CFRP angle plates, bolted + bonded
  • Insert Tabs: 2 mm slots milled on flange interior, carbon insert plates boost shear strength by 35%

7. Typical Applications

  • UAVs: C‑40×25×2 as 1.2 m wing spar—< 1 mm deflection @ 150 N
  • Automotive: U‑50×30×3 as sill reinforcement—45 % higher crash energy absorption
  • Architecture: C‑80×50×3 as curtain‑wall beam, 4 m span, 2 kN/m² load
  • Rail Transport: U‑60×40×4 as cable duct—UL94‑V0 flame rating
  • Medical: U‑30×20×2 as MRI trolley rails—non‑magnetic, corrosion‑proof

8. Surface Finishes

  • High‑Gloss Clear Coat: ≥ 90 GU, ready for exterior use
  • Matte Finish: ≤ 10 GU, fingerprint resistant
  • Decorative Decals: Ice blue, flame red, metallic silver

9. Ordering & Delivery

  • MOQ: 1 piece in stock; 50 pieces custom
  • Lead Time: Stock 24 h; custom 3–7 days; large sections 10 days
  • Packaging: Film wrap → foam → carton; wooden crates for > 2 m
  • Certifications: Batch reports, RoHS, REACH, UL94‑V0, DNV‑GL (marine)

Offline Contracts

All sales of our carbon fiber materials are conducted through offline contract agreements to ensure each order precisely meets your specifications, compliance requirements, and agreed payment terms. Please contact our sales team to initiate the contract process and discuss project details.

namevalueunitCodeunitText
MOQ50PCS
Lead Time5–20business days
MaterialCarbon Fiber
SizeCustomizable (cross section dimensions / length)

Resources

Carbon Fiber C/U‑Channels bring lightweight, high‑strength, rapid assembly, and aesthetic appeal to every structural rail—elevate your modular designs with proven carbon‑fiber innovation.

Material

100% Carbon Fiber

Section Height

20 mm – 200 mm

Flange Width

10 mm – 100 mm

Flange Thickness

1.0 mm – 10 mm

Lip Depth (L)

5 mm – 50 mm

Length

Up to 3000 mm continuous

Dimensional Tolerance

± 0.1 mm

Straightness

≤ 0.3 mm/m

Tensile Strength

≥ 900 MPa

Service Temperature Range

−40 °C to +120 °C (continuous)

Corrosion Resistance

Excellent (nonmetallic)

Product Customization Process

  1. Requirement Gathering: Customer submits application scenario, load conditions, dimensions, material specs and drawings.
  2. Technical Evaluation: Our engineers assess feasibility, select fiber grade, resin system, manufacturing method and estimate cost.
  3. 3D Design & Simulation: Create CAD model from client drawings and perform FEA for strength and weight optimization.
  4. Rapid Prototyping: Deliver prototype within 3–7 days, including pultrusion/filament winding and necessary CNC machining.
  5. Sample Validation: Client inspects prototype dimensions, appearance and performance, then provides feedback.
  6. Tooling/Fixture Confirmation: Modify and approve molds or fixtures based on prototype, finalizing production setup.
  7. Pilot Production: Conduct pilot run to verify process stability and re-test performance.
  8. Mass Production: Proceed with full-scale manufacturing according to approved specs and quantities.
  9. Quality Inspection: Perform 100% visual, dimensional checks and ultrasonic NDT; issue inspection reports and material certificates.
  10. Packaging & Shipment: Pack per client’s requirements (bubble-wrap, reinforced cartons or crates) and arrange international shipment.
  11. After-sales Support: Offer installation guidance, maintenance advice and secondary processing services.

Office Phone

Mon-Fri: 9AM-6:30PM (GMT)+86 (318)5261 900

Jessica Lee

24/7 Emergency Support+86 186-3185-7587

WhatsApp

Start Chat Now WhatsApp QR Code

Email Support

sales@cnccarbonfiber.comResponse within 24 hours
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