Carbon Fiber Tubes

Select diameter based on the part or assembly fit and wall thickness for the required stiffness and strength; thicker walls increase bending stiffness and compressive strength while thinner walls save weight. Check load, deflection, and buckling requirements for your application and match tube outer diameter, inner diameter, and layup spec to those needs

Compare stiffness using the bending modulus or moment of inertia (depends on diameter and wall thickness) and compare strength by tensile and compressive strength ratings or manufacturer-provided load limits. For practical selection, use manufacturer datasheets with mechanical properties and calculate expected deflection or safety factor for your specific loading scenario

Use precision cutting tools (diamond or carbide blades) with dust extraction and personal protection; join with epoxy adhesives designed for composites, mechanical fittings with internal sleeves to prevent crushing, or threaded inserts/bonded end caps for fastening. Avoid drilling without proper backing and use clamping or sleeve reinforcement to prevent split or delamination

Protect UV-exposed surfaces with UV-stable paint or clearcoat if the resin is not UV resistant, avoid sharp impacts and excessive abrasion, and clean with mild soap and water; inspect periodically for cracks, delamination, or resin damage and repair small surface damage with appropriate epoxy to stop further deterioration. Do not use strong solvents that can degrade the resin

Performance at elevated temperatures depends on the resin system—some epoxies soften above their glass transition temperature—so verify the tube's maximum service temperature from specifications. Carbon fiber itself is corrosion-resistant, but end fittings and adhesives must be chosen for any chemical exposure or galvanic concerns with dissimilar metals

Carbon fiber tubes typically range from budget options under $50 for small-diameter or thin-wall tubes to several hundred dollars for large-diameter, high-modulus, or precision-controlled layups; higher cost generally reflects better fiber quality, tighter dimensional tolerances, specialized resins, and more complex layups. Match the price tier to your application requirements to avoid overspending on unneeded performance