PRODUCT

Fiberglass Structural Shapes

I-Beams, Channels, Angles & Custom Profiles — Corrosion-Resistant Alternatives to Steel

Fiberglass structural shapes including I-beams, channels, angles and custom profiles
Corrosion Proof 75% Lighter than Steel 25+ Year Life
Tensile Strength
380MPa
Longitudinal tensile strength
Density
1.9g/cm³
Material density
Max Span
12m
Maximum unsupported span
Service Life
25+Years
Expected service life in harsh environments

Gallery

Fiberglass wide flange I-beam structural shape
Fiberglass Wide Flange I-Beam
Fiberglass C-channel structural shape for framing and support
Fiberglass C-Channel
Fiberglass angle structural shapes for bracing and corner connections
Fiberglass Angle Profile
fiberglass-structural-shapes-gallery-4
Product Detail

Overview

Engineered Fiberglass Structural Shapes

Our fiberglass structural shapes are precision-engineered composite profiles designed to replace traditional steel, aluminum, and wood in load-bearing applications. Manufactured using the advanced pultrusion process, these shapes combine continuous E-glass fiber reinforcements with premium vinyl ester or polyester resin systems to deliver exceptional mechanical performance in the most demanding environments.

The product range includes standard structural profiles such as wide-flange I-beams (up to 600mm depth), American-standard channels (C-shapes), equal and unequal leg angles, square and rectangular hollow sections, and round tubes. Each shape is available in multiple sizes and wall thicknesses to meet specific structural requirements. All profiles feature a UV-resistant surface veil and can be manufactured with fire-retardant additives for enhanced safety.

Fiberglass structural shapes provide significant advantages over conventional materials: they are impervious to corrosion, electrically non-conductive, thermally insulating, and magnetically transparent. With a strength-to-weight ratio exceeding that of steel and a projected service life of 25+ years in harsh environments, these shapes represent the optimal choice for infrastructure, industrial, marine, and renewable energy projects worldwide.

Fiberglass I-beam and channel structural shapes in various standard sizes

Fiberglass structural shapes — I-beams, channels, angles and custom profiles

BS 4211 HDG Q235B

Specifications

Specifications

Technical dimension chart for fiberglass structural shapes

Technical Specifications

Dimensiones

Wide-flange I-beams: 100×100mm to 600×300mm. Channels (C-shape): 75×40mm to 300×100mm. Equal angles: 25×25mm to 200×200mm. Unequal angles: 75×50mm to 200×100mm. Square tubes: 25×25mm to 200×200mm. Custom dimensions available upon request.

500mm clear width 250mm rung spacing 20mm rung dia. 150mm wall clearance
Parameter Value
Resin System Vinyl Ester / Polyester / Epoxy
Fiber Reinforcement E-Glass (standard) / S-Glass (high-strength)
Glass Content 65% – 80% by weight
Tensile Strength (Longitudinal) 300 – 450 MPa
Flexural Strength 350 – 500 MPa
Operating Temperature Range -50°C to +200°C
Dielectric Strength 12 kV/mm
Fire Resistance ASTM E84 Class 1 / UL 94 V-0

Features

Features & Benefits

Key Features

Features

Complete Corrosion Immunity

Fiberglass structural shapes will never rust, rot, or corrode. They withstand exposure to acids, alkalis, industrial chemicals, salt spray, and wastewater without degradation or the need for protective coatings or cathodic protection.

Steel-Competitive Strength

With longitudinal tensile strength of 300-450 MPa and flexural modulus up to 28 GPa, our shapes deliver structural performance comparable to structural steel while weighing only one-quarter as much.

Non-Conductive & RF Transparent

Perfect for electrical substations, telecommunications towers, and radar installations. Fiberglass is electrically non-conductive and transparent to radio frequencies, eliminating interference and ensuring worker safety.

Low Thermal Conductivity

With thermal conductivity of just 0.3 W/mK (vs 50 W/mK for steel), fiberglass shapes provide natural thermal breaks, reducing condensation, heat transfer, and energy costs in building envelopes.

Dimensionally Stable

Low coefficient of thermal expansion (8-12 ×10⁻⁶/°C) means fiberglass shapes maintain their dimensions across wide temperature ranges, unlike metals that expand and contract significantly.

Custom Fabrication Ready

Shapes can be cut, drilled, machined, and assembled using standard tools. We offer custom fabrication including bolted connections, adhesive bonding, and stainless steel fastening systems for turnkey solutions.

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