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Carbon fiber rebar is an advanced composite material made by combining carbon fibers with a polymer matrix (usually epoxy or vinyl ester). As a type of high modulus carbon FRP bar, it delivers exceptional:
Tensile Strength: Typically 1,400–2,400 MPa, surpassing both steel and other FRP alternatives.
Modulus of Elasticity: Up to 150–180 GPa, minimizing deformation under load.
Corrosion Resistance: Completely non-corrosive in alkaline, acidic, or chloride-rich environments.
Weight Reduction: Weighs up to 75% less than steel, simplifying transportation and installation.
These properties make carbon FRP rebars especially valuable in applications where performance and durability outweigh cost concerns.
Carbon fiber rebar is often selected for high-performance construction scenarios, including:
Nuclear and Research Facilities: Where electromagnetic transparency, low thermal conductivity, and radiation resistance are required.
Aerospace and Military Infrastructure: Lightweight and corrosion-resistant reinforcement for specialized installations.
Prestressed or High-Rise Buildings: Especially in seismic zones where structural resilience is critical.
Bridges, Tunnels & Marine Structures: For critical zones requiring long-term structural integrity with zero corrosion risk.
Its non-conductive and non-magnetic nature also makes it ideal for MRI rooms, data centers, and laboratories.
Despite its impressive performance, carbon fiber rebar price remains a limiting factor for widespread use. In 2025, average global prices are:
| Diameter | Price (per meter) | Price (per ton) |
|---|---|---|
| 10 mm | $5.00–$8.00 | $12,000–$16,000 |
| 12 mm | $6.00–$10.00 | $13,000–$17,500 |
| 16 mm | $8.00–$13.00 | $14,500–$18,500 |
Key procurement tips:
Project-Based Bidding: Due to its high price, carbon FRP is often custom-quoted for each project.
MOQ Awareness: Many suppliers have minimum order quantities (e.g., 1 ton), especially for made-to-order diameters.
Compare Resin Types: Epoxy offers higher modulus and temperature resistance; vinyl ester is more cost-effective.
Source from Specialized Manufacturers: Not all FRP rebar factories handle carbon composites—look for dedicated CFRP producers.
