{"id":4113,"date":"2026-05-23T10:42:30","date_gmt":"2026-05-23T02:42:30","guid":{"rendered":"https:\/\/ytcarbonfiber.com\/?post_type=product&p=4113"},"modified":"2026-07-02T11:09:08","modified_gmt":"2026-07-02T03:09:08","slug":"carbon-fiber-round-tube","status":"publish","type":"product","link":"https:\/\/ytcarbonfiber.com\/de\/produkt\/carbon-fiber-round-tube\/","title":{"rendered":"Carbon Fiber Round Tube"},"content":{"rendered":"

Product Details<\/h2>\n

The circular cross-section of a carbon fiber round tube gives it one mechanical advantage no other profile can match: stress distributes evenly around the entire perimeter under torsion and multi-directional bending. That means no weak axis, no stress concentration at corners, and no preferential buckling direction. For applications where the load doesn’t come from a single predictable direction \u2014 rotating shafts, cantilevered masts, UAV arms catching wind gusts from any angle \u2014 round is the most efficient shape per gram of material.<\/p>\n

Compared to square and rectangular carbon fiber tubes, a round tube provides roughly 20% higher torsional stiffness at the same cross-sectional area, because every fiber is equidistant from the center. The trade-off is that flat surfaces are gone \u2014 you can’t rest a bolt head flush against a curved wall, and clamping requires saddle brackets instead of simple flat plates. If your design calls for bolted frame joints, see our carbon fiber square tube<\/a><\/strong>. If you need maximum bending efficiency in one direction, a rectangular tube<\/a> may be lighter. But for the broadest range of loading conditions, round remains the default.<\/p>\n

We manufacture these round carbon fiber tubes in our Shenzhen factory using both roll-wrapped and pultruded processes. Our pultrusion line produces single-piece lengths up to 4 meters \u2014 one of the longest capabilities among Chinese carbon fiber tube factories. Available inner diameters span 3mm to 200mm with wall thicknesses from 0.5mm to 10mm. Buying direct from a China carbon fiber tube factory means you skip trading company markups and get real production-line photos with every order update.<\/p>\n

<\/p>\n

Specifications<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Specification<\/th>\nDetails<\/th>\n<\/tr>\n<\/thead>\n
Material<\/strong><\/td>\nT300\/T700\/T800 carbon fiber<\/td>\n<\/tr>\n
Cross-Section<\/strong><\/td>\nRound (circular)<\/td>\n<\/tr>\n
Inner Diameter<\/strong><\/td>\n3mm \u2013 200mm<\/td>\n<\/tr>\n
Wall Thickness<\/strong><\/td>\n0.5mm \u2013 10mm<\/td>\n<\/tr>\n
Max Single-Piece Length<\/strong><\/td>\n4000mm (4 meters)<\/td>\n<\/tr>\n
Construction<\/strong><\/td>\nRoll-wrapped \/ Pultruded<\/td>\n<\/tr>\n
Weave Options<\/strong><\/td>\n3K Twill \/ Plain \/ UD<\/td>\n<\/tr>\n
Surface Finish<\/strong><\/td>\nMatte \/ Glossy<\/td>\n<\/tr>\n
Fiber Volume Fraction<\/strong><\/td>\n60\u201365%<\/td>\n<\/tr>\n
Density<\/strong><\/td>\n1.55\u20131.60 g\/cm\u00b3<\/td>\n<\/tr>\n
Tensile Strength (axial)<\/strong><\/td>\n\u2265 800 MPa<\/td>\n<\/tr>\n
Torsional Modulus<\/strong><\/td>\n\u2265 5 GPa (\u00b145\u00b0 layup)<\/td>\n<\/tr>\n
Operating Temperature<\/strong><\/td>\n-40\u00b0C to 120\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/p>\n

Applications<\/h2>\n
\n
\n
READ MORE<\/a><\/div>\n<\/div>\n
\n