A powerful manufacturer of FRP grating and fiberglass profiles.

Pultruded Fiberglass Round Tubes

Pultruded Fiberglass Round Tubes, also known as FRP/GRP round tubes, are engineered using advanced pultrusion technology to deliver outstanding strength, lightweight performance, and long-lasting durability. These tubes are widely used in structural, electrical, and industrial applications where corrosion resistance and dimensional stability are essential.

  • Product Details
  • Specifications
  • Ordering
  • Packing & Delivery

Product Overview

Pultruded Fiberglass  Round Tubes are manufactured through a continuous pultrusion process that ensures high fiber content, uniform cross-sections, and consistent quality. Compared to steel, aluminum, or PVC, FRP/GRP round tubes offer excellent resistance to corrosion, impact, and chemicals, making them suitable for demanding environments.


Key Features & Advantages

  • High Strength-to-Weight Ratio – Stronger than steel at a fraction of the weight.

  • Corrosion Resistant – Withstands harsh chemicals, saltwater, and outdoor exposure.

  • Electrical Insulation – Non-conductive material, safe for electrical installations.

  • Dimensional Stability – Maintains shape and performance under temperature changes.

  • Low Maintenance – Reduces long-term costs compared to metal alternatives.

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Pultruded Fiberglass Tubes


Specifications (Technical Data)

Available Sizes

  • Outer Diameter: 10mm – 200mm

  • Wall Thickness: 1.5mm – 10mm

  • Length: Customizable up to 6 meters

Material Properties

  • Fiber Content: ≥ 60%

  • Tensile Strength: ≥ 600 MPa

  • Flexural Strength: ≥ 500 MPa

  • Density: 1.9–2.0 g/cm³

  • Temperature Resistance: -40°C to +180°C


Applications of Pultruded Fiberglass Round Tubes

  • Construction & Infrastructure – Bridges, walkways, supports, and handrails

  • Electrical Industry – Cable management, insulation tubes, and non-conductive supports

  • Marine & Offshore – Saltwater-resistant components for boats, docks, and offshore platforms

  • Industrial Equipment – Structural frames, pipelines, and reinforcement rods

  • Recreational Use – Tent poles, sports equipment, and composite reinforcements

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Why Choose Our Pultruded Fiberglass Round Tubes?

  • Over 10 years of FRP/GRP manufacturing expertise

  • Custom dimensions and colors available

  • Strict quality control and ISO-certified production

  • Global supply capability with competitive pricing


FAQ – Frequently Asked Questions

Q1: What is the difference between pultruded fiberglass round tubes and molded fiberglass tubes?
A1: Pultruded tubes are produced in continuous lengths with uniform cross-sections, offering higher fiber content and strength, while molded tubes are typically used for complex shapes.

Q2: Can pultruded fiberglass round tubes replace steel or aluminum tubes?
A2: Yes, in many cases. They provide comparable strength while being lighter and corrosion-resistant, reducing long-term maintenance costs.

Q3: Are these tubes UV resistant for outdoor use?
A3: Yes, UV inhibitors can be added to enhance weather resistance, making them ideal for outdoor applications.

Q4: Can you produce customized sizes and colors?
A4: Absolutely. We offer tailored dimensions, wall thicknesses, and colors according to customer requirements.

Q5: What industries use pultruded fiberglass round tubes most frequently?
A5: Construction, marine, electrical, and industrial equipment are the top sectors using FRP/GRP tubes.

Size: OD(mm)*Thickness(mm)
16*318*320*325*3
30*331*332*336*3
36*638*440*340*4
46*246*446*650*3
55*460*580*590*6

Max Length: 6 inches / 152.4 mm
Outer Diameter: 1.25 inch / 31.75 mm
Inner Diameter: 1 inch / 25.4 mm
Weight: 2.09 oz / 59.22 g
Our Part Number: RT-114-05B

Color: Black

Temperature Range: -50° F to 265° F

Tensile Strength: 10,000-15,000 psi (Good)

Impact Strength: 8.2-12 ft.-lbs./in. (Excellent)

Hardness: Rockwell M95 (Hard)

For Use Outdoors: No

If our website has no specs you need, please contact online customer service or leave us a message. Our professional sales personnel will reply to you the first time!

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Technology: Choose molded or pultruded.

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Color: Yellow, gray, green, blue, red, and white.We can paint the color according to your requirements.

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Specifications: Grid height, shape,bearing bar size, bearing bar spacing,product surface,percent open area,span,product size, form.

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Other:Specify any requirements like fabrication, notching, cut-outs, Stair Treads, non-standard tolerances, etc.

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Accessories: Determine if fiberglass grating accessories like clips or fasteners/hardware, etc. are needed for your project or application.

Packing & DeliveryPacking: in pallet

Ocean + Delivery your country (Economy)

We will do our best to ensure fast delivery!

For urgent cargoes, please contact customer service directly.

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