Unlike square and rectangular tubes with angular sections, circular FRP tubes deliver even force distribution in all directions, no stress concentration at corners. They serve as perfect substitutes for steel pipes, aluminum tubes and plastic pipes. All products comply with ISO9001 and EN13706 standards. We maintain stock of standard sizes and support full customization on diameter, wall thickness, resin formula and color.

Complete Technical Specifications:

Core Competitive Advantages:

1. Uniform Circular Stress Distribution, High Structural Stability

Circular cross-section disperses radial force evenly without sharp corner stress cracking. Ideal for handrails, round support posts and tubular frames that bear multi-directional loads. Low density (1/4 of steel) cuts transportation and installation costs, no heavy lifting equipment required.

2. Superior Anti-Corrosion & UV Resistance

100% rust-free, immune to seawater, acid, alkali and industrial solvents. Outer gel-coat layer resists ultraviolet aging, no fading or surface cracking under long-term outdoor exposure, suitable for coastal, chemical, wastewater and aquaculture environments.

3. Complete Electrical & Thermal Insulation

Non-conductive and non-magnetic, eliminating electric leakage risks. Low thermal conductivity blocks heat transfer, widely used for power insulation poles, cable supports and electrical equipment frames.

4. Maintenance-Free, Ultra-Long Service Life

Integral colored resin body needs no periodic painting or anti-rust coating. Stable performance for over 20 years outdoors, drastically reducing later project maintenance expenses.

5. Easy Machining & Rich Custom Options

Can be cut, drilled and bolted with ordinary hand tools, compatible with FRP or stainless steel connectors. Multiple wall thicknesses, outer diameters, solid colors and flame-retardant resin grades are available on request.

6. Optional UL94 Flame Retardant Grade

Vinyl ester fire-retardant version produces low smoke and no molten drips, meeting fire safety standards for factories and public facilities.