Carbon Fibre Round Bars

Solid lightweight profiles for axial stiffness, precision structures and corrosion-resistant engineering applications.

Manufacturing route	Pultrusion with optional cutting, grinding, turning, drilling, VMC milling and end integration.
Commercial grades	Essential Grade, Performance Grade and Advanced Grade.
Fibre orientations	Unidirectional 0°; cross-ply 0°/90°; multi-axial 0°/±45°/90°.
Standard diameters	8, 10, 14, 20, 25, 32, 36, 40, 45 and 50 mm.
Custom diameters	60, 65, 75, 80, 90, 100, 120, 125, 140 and 150 mm, subject to feasibility and tooling review.
Standard lengths	250, 500, 1000, 1200, 1500 and 2000 mm.
Maximum offered length	Up to 2500 mm, subject to diameter and straightness requirement.
Indicative diameter tolerance	Standard ±0.20 mm; precision-machined features subject to drawing review.
Indicative straightness	Standard target ≤0.50 mm per metre; tighter control subject to inspection plan.
Indicative density	Typically 1.40–1.60 g/cm³; final value depends on fibre and resin system.
Surface finish	Pultruded satin, ground matte, machined or optional clear-gloss protection.
Colour	Natural carbon black. Other appearances require a coating or cosmetic layer.
End processing	Chamfers, flats, slots, cross-holes, bonded threaded inserts, sleeves and custom end fittings.
MOQ	One-piece samples may be quoted for available sizes. Custom profiles depend on tooling and raw-material economics.
Indicative lead time	Stock/standard processing: 3–15 working days. Custom profiles: normally 3–8 weeks after approval.
Certificates	Material or inspection documentation can be quoted where traceability is available.

Published figures are indicative design and commercial targets, not a universal material certificate. Final values are confirmed against the selected grade, drawing and inspection requirement.