FRP Square Tube

FRP Square Tube

Jinyang FRP (Fiberglass Reinforced Plastic) square tubes are pultruded hollow square profiles used as lightweight structural members. Corrosion resistant, electrically insulating, and easy to fabricate, they are widely used for frames, railings, supports, and fencing where steel would rust or conduct electricity.

How It Works

Continuous glass fibers are pulled through resin and a square die, forming a uniform hollow section. The square shape provides good bending and torsional stiffness on both axes, and tubes can be cut, drilled, and joined with bolted or socketed connections.

Key Features

• High strength-to-weight - stiff on both axes yet easy to handle and erect.

• Corrosion resistant - resists moisture, chemicals, and outdoor weathering.

• Electrical insulation - non-conductive for safe railing and support use.

• Dimensional consistency - pultrusion holds square tolerances along length.

• Easy to fabricate - cut, drill, and join with standard tools.

• Low maintenance - no painting or rust-proofing required.

Technical Options

Square sections from 20x20 mm to 200x200 mm, wall thickness 3-10 mm, lengths up to 6 m. Standard colors or custom; polyester or vinyl ester resin available.

Typical Applications

Frames, railings, fence posts, equipment supports, walkway structures, and corrosive-environment construction.

Why Choose Jinyang

With over 20 years of FRP manufacturing, Hebei Jinyang Environmental Protection Equipment Co., Ltd. supplies pultruded square tubes worldwide. Contact Jinyang for sizes and a quote.