FRP Round Tube
FRP round tube, also called fiberglass reinforced plastic tube, is a glass fiber and resin composite with many advantages over steel, concrete, and wood. This page covers its features, benefits, and applications.
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Fiberglass round tube
Fiberglass round tube, also called fiberglass reinforced plastic tube, is a composite of glass fiber and resin. As a newer type of pipe, it offers many advantages over traditional materials such as steel, concrete, and wood. Below we cover its features, benefits, and applications.

Features of Fiberglass round tube
These features make fiberglass round tube stand out from other pipe materials:
·Lightweight: at a low density of about 1.8 g/cm3 — only 1/4 that of steel and 1/10 that of concrete — it is easy to transport, handle, and install, and it reduces the load placed on foundations and structures.
·Corrosion-resistant: it resists corrosion from a wide range of chemicals, acids, alkalis, salts, and seawater, so it keeps its performance and appearance for a long time without rusting, scaling, or cracking.
·High-strength: a high strength-to-weight ratio lets it meet varied design requirements, withstanding high pressures, impacts, and loads without breaking or deforming.
·Durable: under normal conditions it has a service life beyond 50 years, and it also resists aging, weathering, UV rays, and fire, which saves on maintenance and replacement costs over time.
·Easy to install: available in various sizes, shapes, and colors to suit customer needs, and it can be cut, drilled, and joined easily with simple tools, cutting installation time and labor costs.
Benefits of Fiberglass round tube
Customers and users gain the following benefits from fiberglass round tube:
·Energy saving: a smooth inner surface reduces friction loss and energy use in fluid flow, and low thermal conductivity cuts heat loss and energy consumption in heating or cooling systems.
·Environmental protection: made from recyclable materials, it lowers environmental impact and carbon footprint, and produces no toxic emissions or leaching that could pollute water or soil.
·Cost-effective: both initial and operating costs run lower than other pipe materials, and it also reduces transportation, installation, maintenance, and replacement costs over the long term.
Product Performance Parameters Table
This table lists the main performance parameters of fiberglass round tube:
| Parameter | Unit | Value |
| Tensile strength | MPa | 300 |
| Bending strength | MPa | 250 |
| Modulus of elasticity | GPa | 20 |
| Thermal conductivity | W/mK | 0.3 |
Product Specification Parameters Table
This table lists the main specification parameters of fiberglass round tube:
| Parameter | Unit | Range |
| Diameter | mm | 25~4000 |
| Length | m | 1~12 |
| Wall thickness | mm | 2~50 |
| Color | – | White, black, green, blue, red, etc. |
Technical Summary & Engineering Insights
| Performance Factor | Haikuo Fiberglass Round Tube | Steel Pipe | Aluminum Pipe |
|---|---|---|---|
| Corrosion Resistance | Total immunity | Rusts, requires coating | Resists rust but can corrode/pit |
| Weight | Significantly lighter | Heavy | Light, but less strength-to-weight than FRP in many grades |
| Electrical Conductivity | Non-conductive | Conductive | Conductive |
| Maintenance | Minimal, no painting/coating needed | Regular coating/repainting required | Low but can oxidize |
| Chemical Resistance | Excellent | Poor without coating | Moderate |
Targeted Product FAQ
Q1: What diameters and wall thicknesses are available?
A1: A wide range of standard and custom diameters and wall thicknesses are available — see the Customized Service options above or send us your specification.
Q2: Can fiberglass round tube be used for handrails and structural framing?
A2: Yes, it’s commonly used for handrails, structural framing, and general fabrication wherever a lightweight, corrosion-resistant tube is needed.
Q3: How does fiberglass tube handle UV exposure outdoors?
A3: Our tubes are produced with UV-stabilized resin, and a surface veil is available to further protect against fiber blooming and maintain appearance in prolonged outdoor use.
Q4: Can the tube be drilled, cut, and bonded on-site?
A4: Yes — it can be cut with standard tools, drilled, and bonded with structural adhesives; it cannot be welded like steel, so mechanical or adhesive joining methods are used instead.
Q5: What colors are available?
A5: Standard and custom color pigments can be integrated during pultrusion — let us know your required color (e.g. safety yellow, black, grey) when requesting a quote.
Production Process

Pultrusion Profile Equipment

Fiberglass placed on a shelf

Profile mold debugging

Profile cutting

Profile punching

Profile cutting details control

Profile inspection

Profile packaging







