FRP Pultruded I-Beam

Product Introduction

Pultruded profiles are made using the pultrusion molding process. Pultrusion is a continuous production method for glass fiber reinforced plastic profiles with uniform cross-sectional shapes and dimensions. The process involves: under the traction force produced by the molding equipment, adding materials (such as glass fiber roving, glass fiber mat, etc.) which are impregnated with matrix materials (such as unsaturated polyester resin, etc.) according to a specific configuration, then passing through a mold system where they continuously cure and form, resulting in a continuous output of smooth-surfaced, dimensionally stable, and extremely strong glass fiber reinforced plastic profiles. The main applications of pultruded profiles include: insulating support components, urban rail three-track protective covers and supports, antenna poles, high-voltage cable trays, high-voltage power operation rods, generator radiators, stairs and handrails, operating platforms, corridors, oil storage tanks, distribution boards and distribution rooms, drainage systems, berths and underwater identification markers, pressure rods in trains and cars, corner plates, highway guardrails, sound-absorbing panels, anti-glare panels, filler supports in towers, filter plate supports, frame materials for cold storage, etc.

Introduction to Pultruded profile production

The production is carried out through pultrusion, which is a continuous process method for manufacturing fiberglass reinforced plastic profiles with uniform cross-sectional shapes and dimensions. Under the traction force produced by the forming equipment, reinforcing materials (such as fiberglass reinforced plastic (FRP) untwisted roving, glass fiber continuous mat, etc.) are impregnated with matrix materials (such as unsaturated polymer resins) in a specific configuration form and then continuously cured and formed through the mold system, thereby obtaining FRP profiles with smooth surfaces, stable dimensions and extremely high strength.

Core Strengths 

The design of the I-beam mechanical structure ensures excellent bending resistance. Under the same weight, its load-bearing capacity far exceeds that of traditional rectangular profiles.  
2. Resistant to corrosion and rusting, it can be used for a long time in corrosive environments such as acids, alkalis, salt fog, and humidity, with no maintenance required and a long service life.  
3. Lightweight and high-strength, with a specific strength far exceeding that of carbon steel, significantly reducing the overall costs of lifting, transportation and construction.  
4. Insulation is non-magnetic, with no eddy current loss. It is suitable for scenarios such as power supply and rail transportation where electrical safety is required.  
5. High dimensional accuracy, capable of on-site cutting and drilling, easy to install, and can perfectly replace traditional metal steel beams. 

Structural Characteristics 

The continuous glass fibers are laid in a direction perpendicular to the force direction. Through the pultrusion process, it is once-cured and formed as a whole. The structure is dense without any layering or defects. It has a standard I-beam cross-section, with uniform thickness of the flange and web, a high moment of inertia, and a scientifically designed mechanical structure. The width of the flange, the height of the web, and the wall thickness can be customized as needed. Customized hole-making and pre-installed component designs are supported. The length can be customized as required. The overall structure has excellent resistance to deformation and bending, and maintains stability and does not deform over a long period of use.

Focusing on Performance 

It features high strength in bending resistance, excellent insulation and corrosion resistance, stable structure, and resistance to weathering and aging. 
It is suitable for severe working conditions such as large-span load-bearing, heavy-load support, strong corrosion, and long-term outdoor use. The mechanical performance retention rate is high within a wide temperature range, and it resists creep, settlement, and deformation, meeting the continuous and stable load-bearing requirements of industrial buildings.

Applicable Scenarios 

It is widely used in various construction and industrial scenarios that require high-strength load-bearing and corrosion-resistant insulation, such as the operation platform beams in chemical workshops, roof load-bearing purlins, power substation frameworks, rail transit track supports, municipal bridge auxiliary structures, offshore platform load-bearing components, cold storage building frames, and industrial factory anti-corrosion load-bearing beams.