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Structural Profiles - Three-Hole Hollow Profile (Isophthalic)
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Greenlogy TEC
FRP structural profiles are made from glass fiber reinforcement, with resin as the binder and glass fiber cloth as the wrapping reinforcement layer. After full impregnation, they are heated, formed and cured in a metal mold, and then pultruded under the pulling force of a traction machine to form a new type of composite material with good physical properties, widely used in high-strength and long-span applications.
Type | Size (mm) | Weight (kg/m) | Size (in) | Weight (lbs/in) |
| 450*4.5*150*6 | 18.2 | 18" x 3/16" x 6" x 1/4" | 40.1 |
Market
Construction
Bridges and highways
Chemical
Food and beverage
Manufacturing
Metals and mining
Microelectronics
Oil and gas
Pharmaceutical
Power
Pulp and paper
Entertainment
Telecommunications
Transportation
Water and wastewater treatment
Features:
Corrosion resistance
Low maintenance cost
Flame retardant
Low installation cost
Heavy metal resistant
Long service life
Electrically and thermally non-conductive
High strength-to-weight ratio
Raw material introduction — resin types
Code | Resin type | Flame retardancy | Recommended applications |
|---|---|---|---|
VEFR-25 | Vinyl ester type | Oxygen index 28 and above | Acid, alkali and other harsh corrosive environments |
IFR-25 | Isophthalic type | Oxygen index 28 and above | VEFR type, an economical resin with good performance and moderate resistance to acids, alkalis and solvents |
OFR-25 | Orthophthalic type | Oxygen index 28 and above | General acid and alkali environments |
Applications:
Greenlogy TEC pultruded FRP profiles are widely used in a variety of applications, combining corrosion resistance, high strength, dimensional stability and light weight with thermal and electrical insulation properties. Durable Greenlogy TEC profiles provide years of low-maintenance service in areas where steel, aluminum or wood components have traditionally been specified. Today, these profiles are often used in highly corrosive applications that previously required stainless steel and other costly components.
Greenlogy TEC profiles
Mechanical properties | ASTM | Unit | Value | Unit | Value |
|---|---|---|---|---|---|
Tensile stress, longitudinal | D-638 | psi | 30000 | kgf/m² | 21092086 |
Tensile stress, transverse | D-638 | psi | 7000 | kgf/m² | 4921487 |
Tensile modulus, longitudinal | D-638 | 10^6psi | 2.5 | 10^6kgf/m² | 1758 |
Tensile modulus, transverse | D-638 | 10^6psi | 0.8 | 10^6kgf/m² | 562 |
Compressive stress, longitudinal | D-695 | psi | 30000 | kgf/m² | 21092086 |
Compressive stress, transverse | D-695 | psi | 15000 | kgf/m² | 10546043 |
Compressive modulus, longitudinal | D-695 | 10^6psi | 2.5 | 10^6kgf/m² | 1758 |
Compressive modulus, transverse | D-695 | 10^6psi | 1 | 10^6kgf/m² | 703 |
Flexural stress, longitudinal | D-790 | psi | 30000 | kgf/m² | 21092086 |
Flexural stress, transverse | D-790 | psi | 10000 | kgf/m² | 7030695 |
Flexural modulus, longitudinal | D-790 | 10^6psi | 1.8 | 10^6kgf/m² | 1266 |
Flexural modulus, transverse | D-790 | 10^6psi | 0.8 | 10^6kgf/m² | 562 |
Modulus of elasticity | Full section | 10^6psi | 2.8 | 10^6kgf/m² | 1969 |
Shear modulus | --- | 10^6psi | 0.45 | 10^6kgf/m² | 316 |
Short-beam shear | D-2344 | psi | 4500 | kgf/m² | 3163813 |
Punch shear | D-732 | psi | 10000 | kgf/m² | 7030695 |
Notched Izod impact strength, LW | D-256 | ft.-lbs./in. | 25 | kg/m | 3.46 |
Notched Izod impact strength, CW | D-256 | ft.-lbs./in. | 4 | kg/m | 0.55 |
Excluding round bars and square bars
Physical properties | ASTM | Unit | Value |
|---|---|---|---|
Barcol hardness | D-495 | --- | 45 |
24-hour water absorption | D-570 | % max | 0.45 |
Density | D-792 | lbs./in.³ | 0.062-0.07 |
Coefficient of thermal expansion, LW | D-696 | 10^-6in./in./℃ | 8 |
Flame retardancy | ASTM | Unit | Value |
|---|---|---|---|
Tunnel test flame spread* | E-84 | Flame spread | 25 max |
Flame resistance* | D-635 | --- | Non-combustible |
Electrical properties | ASTM | Unit | Value |
|---|---|---|---|
Arc resistance, LW | D-495 | 秒（s） | 120 |
Dielectric strength, LW | D-149 | kv./in. | 35 |
Dielectric strength, PF | D-149 | Volts/mil | 200 |
Dielectric constant, PF | D-150 | @60hz | 5 |
LW = lengthwise, CW = crosswise, PF = perpendicular to laminate surface
*Applies to ISOFR and VEFR only
Applications
The three-hole hollow profile is suitable for load-bearing platforms, walkways, handrail supports, and structural components in corrosive environments such as chemical, food, and metal mining applications where strength and span requirements apply. The isophthalic resin system makes it preferable in humid and chemical-exposure conditions. For specific application suitability, please provide your operating environment parameters; you are welcome to contact us for advice.
Selection Guide
When selecting, determine the cross-section and length based on load requirements, span, support spacing, corrosive media, and installation method. The three-hole hollow structure provides a higher moment of inertia at the same weight, making it suitable for replacing some traditional profiles. Please send us your operating parameters; you are welcome to contact us for detailed specifications and selection support.
Product Advantages
Made with glass fiber reinforcement and an isophthalic resin system through the pultrusion process, it features light weight and high strength, corrosion resistance, non-conductivity, and low maintenance. The three-hole hollow cross-section helps maintain structural stiffness while reducing self-weight, and facilitates on-site cutting and installation. For specific performance data and test reports, you are welcome to contact us.
Inquiry Guidance
For information on dimensions, colors, surface treatments, and packaging and shipping options, you are welcome to contact us for detailed specifications and quotations. Please provide the required cross-section, length, quantity, and operating environment, and we will provide a corresponding solution and delivery schedule.
Custom Cutting
Need panels that fit, or cut to shape? We custom cut FRP grating and profiles to your drawing: panels cut to size or to shape (corner cuts, cutouts), cut edges sealed with resin, and pre-cut and pre-drilled to drawing before shipping. See the custom cutting services.
