Dimensionally Stable Highly Corrosion Resistance Carbon Fiber Square Tubes

Carbon fiber square tubes, also known as carbon fiber square profiles or carbon fiber box sections, are hollow structures with a square cross-section made from carbon fiber reinforced polymer (CFRP) composites.

LIJIN carbon fiber square tubes are manufactured using state-of-the-art techniques, including pultrusion as well as compression molding techniques to ensure high quality and durability. In the pultrusion process of fabrication of carbon fiber tubing the continuous pulling of carbon fiber composites is mixed with resin matrix through heated forming dies to create continuous lengths of tubes which provides tubes with unidirectional properties.

Compression molding, on the other hand, involves multiple wraps of carbon fiber prepregs in various weave types. The result is a densely reinforced carbon composite with excellent strength and stability. Our carbon fiber square tubes are available in multiple surface textures, including twill weave and plain weave, and come in a gloss or matte finish. Due to the square shape, it has a better areal moment of inertia which gives higher bending strength. When compared to circular tubes it is perfect for lightweight stiff applications.

Key Features

• High Strength to weight ratio
• Dimensionally stable
• Highly Corrosion Resistance
• Low coefficient of thermal expansion
• Thermally stable up to 125

What we manufacture

• We specialize in square tubes in different weave options like 3k twill weave, 3k plain weave
• Our products are available in unidirectional weave with gloss as well as matt finish

Service

• Customization – Prepreg plies can readily be added or subtracted allowing the tube to be customized with different wall thicknesses
• Sample Acceptable – Because each tube is made one at a time, small production runs are available.
• CNC Machining — cutting according to your CAD drawing
• Print Logo – according to the AI file
• One-Stop Procurement – a whole industry chain of carbon fiber composite products