Custom Anti-Corrosion FRP Pultruded Round Tube Supplier
High-strength FRP pultruded round tube: lightweight, corrosion-resistant, non-conductive fiberglass profiles. Custom sizes and wholesale supply direct from a China manufacturer.| Specification | Unit | Value |
| Diameter | mm | 25~4000 |
| Length | m | 1~12 |
| Wall thickness | mm | 2~50 |
| Incision shape | – | Round Tube, FRP Fluted Tubes |
| Surface | – | Smooth-Surfaced, Textured-Surfaced |
| Color | – | Customized |
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Get professional support for pultrusion equipment, dies, and profilesFiberglass Round Tube Introduction
TOLIKE’s FRP pultruded round tube combines continuous glass fiber with thermoset resin, giving you a profile that resists corrosion, weighs about a quarter of steel and stays electrically non-conductive. That combination pays off on site. Lighter tubes cut freight and handling costs, and because the surface never rusts, handrails, tool handles and telescopic poles keep working through years of salt air, chemicals and UV. Fewer replacements mean a lower lifetime cost. As a China-based manufacturer, TOLIKE supplies custom diameters, wall thicknesses and colors, with wholesale pricing and fast OEM sampling.
Advantages of FRP Pultruded Round Tubes
High Strength, Low Weight
Continuous glass fiber gives this FRP pultruded round tube twice the strength-to-weight ratio of steel, keeping structures rigid while weighing only a quarter as much.
Corrosion-Resistant, Zero Rust
The resin-rich surface never rusts, degrades in salt air, chemicals or moisture, outlasting steel and aluminum in coastal, marine and chemical plants.
Electrically Non-Conductive & Thermally Insulating
Ideal for handrails, ladders, tool handles and telescopic poles where metal tubing creates a safety or heat-transfer risk.
UV Stable in Outdoor Use
Added UV inhibitors keep the fiberglass round tube from fading, cracking or chalking after years of direct sunlight.
Smooth, Consistent Finish
Pultruded (not molded) production delivers a uniform surface and tight dimensional tolerance for reliable fitting and assembly.
Fully Customizable
Custom diameters, wall thicknesses, lengths, resin systems and colors — OEM sampling supported.
Factory-Direct Price
As a China manufacturer, TOLIKE offers wholesale pricing, low MOQ and fast lead times.
Low Lifetime Cost
No painting, no rust repair, no frequent replacement: fewer maintenance hours and a lower total cost of ownership.
Specifications for GFRP Pultruded Round Tubes
|
Parameter |
Unit |
Value |
|
Tensile strength |
MPa |
≥ 300 |
|
Bending strength |
MPa |
≥ 250 |
|
Modulus of elasticity |
GPa |
≥ 20 |
|
Density |
g/cm³ |
1.8 – 2.0 |
|
Thermal conductivity |
W/(m·K) |
0.30 |
|
Dielectric strength |
kV/mm |
≥ 10 |
|
Outside diameter |
mm |
6 – 300 (customizable) |
|
Glass fiber content |
% |
60 – 70 |
|
Water absorption (24 h) |
% |
≤ 0.2 |
|
Service temperature range |
°C |
-40 to +120 |
Applications of FRP Pultruded Round Tubes
Pultruded fiberglass round tube — also written as FRP round tubular profiles, GRP pultruded tubing or hollow glass-reinforced round tube — is specified less for what it is than for what its circular section can do. Unlike square or channel profiles, a round tube bends equally in every direction, with no weak axis; it slides smoothly inside a slightly larger tube; and it gives a clean, warm-to-touch gripping surface. Those three traits unlock applications that flat and angular profiles simply cannot cover.
Handrail & Guardrail Systems
Modular safety railing takes round tube as its top rail, stanchions and knee rail — the standard 50 mm OD size — across platform edges, walkways, stair towers and tank farms. Being non-conductive and non-sparking, it is the usual choice around live electrical equipment, and it never needs repainting.
Telescopic Poles & Antenna Masts
This is the application only a round section can serve. Sizes nest inside one another and lock at any height, building push-up antenna masts, CCTV and inspection poles, window-cleaning poles and collapsible flagpoles that extend on site and collapse for transport. Because the tube is dielectric, the mast itself does not detune or short the antenna.
Live-Line Tools & Insulating Operating Rods
High dielectric strength makes the tube suitable for hot sticks, insulating operating rods, polymer insulator cores and cable-support hardware used inside substations and switchyards, where a conductive path is a safety hazard.
Cooling Towers & Chemical Plant Structures
Support frames, walkways, spray-header supports and fan-stack bracing sit in warm, chemically aggressive water year round. FRP round tube ignores the corrosion cycle that consumes coated steel in this environment.
Marine, Offshore & Waterfront
Boat framing, boarding poles, gangway rails, boat hooks and dock hardware survive constant salt spray and UV exposure without rust staining the deck or hull.
Tool Handles & Leisure Equipment
Round tube is the natural blank for axe, mallet and brush handles, fishing rod sections, tent poles and golf or football flag poles — it insulates the hand from cold and current, and absorbs shock instead of transmitting it.
Flag and tent poles show the same benefit on the leisure side: light enough for one person to raise, stiff enough to hold in wind, and immune to the corrosion that pits aluminium poles after a few seasons.
