Product Overview
Related solutions: Explore our pultruded FRP profiles, FRP rebar, pultrusion machines, pultrusion dies.
Our 8mm carbon fiber rods are solid cylindrical components crafted from carbon fibers in an epoxy resin matrix. These rods deliver good strength-to-weight ratio, good rigidity, and good durability for professional engineering and precision applications. As part of our comprehensive carbon fiber reinforced plastic (CFRP) product line, these rods represent advanced composite technology.
Key Features & Benefits
Construction
- Pultruded Carbon Fiber: Solid rod construction with fibers aligned for high strength
- Epoxy Matrix: High-grade resin ensures durability and dimensional stability
- Precision Manufacturing: Consistent 8mm diameter with good straightness tolerance
- Professional Finish: Smooth, consistent surface suitable for demanding applications
Performance Advantages
- High Strength: High tensile strength with low density
- good rigidity: Minimal deflection under load, suitable for precision structures
- Corrosion Resistant: Resistant to rust, oxidation, and chemical degradation
- Easy to Machine: Cuts cleanly with standard tools and bonds well with epoxy
Technical Specifications
| Property | Specification |
|---|---|
| Diameter | 8mm (±0.1mm tolerance) |
| Available Lengths | 500mm, 1000mm, 1219mm (48″), Custom lengths |
| Construction | Pultruded solid carbon fiber |
| Matrix Material | High-performance epoxy resin |
| Tensile Strength | >2000 MPa |
| Weight | ~1.6 g/cm³ (approximately 75% lighter than steel of equal cross-section by weight) |
| Surface Finish | Smooth, professional grade |
Primary Applications
Engineering & Industrial
- Structural Frameworks: Load-bearing elements in lightweight constructions
- Robotics: High-stiffness components for precision machinery
- Instrumentation: Stable supports for sensitive equipment
- Prototype Development: Rapid prototyping of lightweight structures
Aerospace & RC Models
- Drone Structures: Lightweight spars and reinforcement components
- RC Aircraft: High-performance model aircraft requiring precision
- UAV Components: Professional unmanned vehicle applications
For smaller diameter applications, consider our 4mm carbon fiber rods which offer similar properties in a more compact size. If you need hollow profiles for weight-critical applications, explore our carbon fiber tubes which provide good strength with reduced weight.
Specialized Projects
- Marine Applications: Corrosion-resistant components for boat building
- Automotive: Lightweight structural elements for performance vehicles
- Custom Fabrication: Precision components for specialized engineering projects
Why Choose Our Carbon Fiber Rods?
Quality Assurance
- Rigorous quality control with dimensional accuracy verification
- Consistent manufacturing using advanced pultrusion technology
- Material certificates available for critical applications
- ISO 9001:2015 certified manufacturing processes
Practical Benefits
- Easy Installation: Standard tools for cutting, drilling, and shaping
- Reliable Performance: Consistent properties and long service life
- Cost-Effective: Strong performance for weight-critical applications
- Technical Support: Engineering consultation available for complex applications
Material Comparison
Versus Steel: Substantial weight savings and strong corrosion resistance Versus Aluminum: Higher specific strength and good fatigue performance Versus Fiberglass: Approximately 20-30% lighter with higher strength for equal cross-section For a detailed analysis of carbon fiber versus other composite materials, read our comprehensive FRP vs Carbon Fiber comparison guide.
Working with Carbon Fiber Rods
Cutting & Machining
- Use fine-toothed blades to prevent delamination
- Standard woodworking tools work effectively
- Always wear appropriate safety equipment
- Clean cuts produce best results
Bonding & Assembly
- Clean surfaces thoroughly before bonding
- Structural epoxy adhesives provide strong bonds
- Consider mechanical fasteners for removable connections
- Allow full cure time per adhesive specifications
FAQ
What are the dimensions and tolerances?
Diameter 8mm with ±0.1mm tolerance. Available lengths: 500mm, 1000mm, 1219mm (48″). Custom lengths available. Pultruded construction ensures straightness and rigidity.
What is the tensile strength?
Tensile strength >2000 MPa longitudinally. Modulus 28-40 GPa. High stiffness along length due to unidirectional carbon fiber orientation in epoxy matrix.
How much lighter is it than steel rods?
Density ~1.6 g/cm³, approximately 75% lighter than steel of equal cross-section by weight while maintaining high strength-to-weight ratio. A suitable replacement for metal rods in weight-critical applications.
What is the maximum service temperature?
Continuous use up to 80-200°C (Tg 80°C onset). Suitable for most engineering applications. High-temperature epoxy available for specialized needs.
What applications use 8mm carbon fiber rods?
Drones/RC aircraft frames, wing spars, robotic arms, structural reinforcement, guitar necks, tent poles, 3D printer guides, and industrial machinery components.
Is the rod electrically conductive?
Low electrical conductivity. Non-conductive compared to metals, making it safe for electrical equipment, EMI shielding, and applications requiring electrical isolation.
How is the surface finish?
Smooth, professional-grade matte black finish. Easily bonds with epoxy adhesives. Can be cut with band saw, Dremel, or end mill. Barcol hardness 25-45.
Are custom options available?
Yes. Custom lengths, bundles (5-10pcs), surface treatments, and higher modulus fibers. Minimum order quantities apply for custom specifications.
Available Options
Standard Lengths
- 500mm: Suitable for smaller projects and prototyping
- 1000mm: Most popular length for general applications
- 1219mm (48″): Standard industrial length
- Custom Lengths: Available up to 3000mm
Quality Guarantee
We provide comprehensive quality assurance with prompt replacement of any manufacturing defects and ongoing technical support throughout your project lifecycle.
Need custom specifications or technical consultation? Contact our engineering team for expert guidance on your specific application requirements. Visit our homepage to explore our complete range of pultrusion solutions and advanced composite materials.
Request a quote: Need this product for your project? Contact us for a quote — our engineering team can help with specifications, custom sizes, and bulk orders.








