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Carbon Fiber Squares with Round Holes

CARBON FIBER SQUARE TUBES T91X.jpg
Carbon fiber square tubes are pultruded resulting in very straight fibers cured at high temperature yielding in high fiber to resin ratios and very stiff parts. CST square carbon tubes contain no fillers - ONLY continuous fibers. Some sizes are available up to 82" long. Dimensional tolerances are +/- 0.005" and weight tolerances +/- 2-5%.

Compared to other materials and processes, CST carbon fiber shapes are twice as stiff as aluminum of the same cross section. CST carbon shapes are 350% stronger in tension and 550% stronger in compression than the traditional wet lay-up with carbon fiber tow and room temperature resin systems.




  • Volume Discounts on all Carbon Fiber Pultrusions and Laminates
    • 10-24 pieces per item #: 10% off
    • 25-49 pieces per item #: 15% off
    • 50-99 pieces per item #: 20% off
    • Over 100 pieces per item #: 25% off

    NOTE: No other discounts or special offers including Saver's Club can be used in conjunction with these discounts.

    NOTE: Lengths over 60" may require oversize shipping charges.

    Pultruded carbon fiber square in epoxy resin with a round hole down the center.
    Much stiffer than round hollow carbon rods of the same diameter.

    For comparative technical data on the different types of pultruded shapes, click HERE.

    • Prices are in US dollars and subject to change without notice.