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Structural Profiles - Flat Rectangular Tube (Orthophthalic)
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Greenlogy TEC
FRP pultruded profiles are a new type of composite material made with glass fiber as the reinforcement, resin as the adhesive, and glass fiber cloth as an outer reinforcing layer; after full impregnation, they are heated, formed and cured in a metal mold and pulled by a haul-off machine. They have good physical properties and are widely used in high-strength and long-span applications.
Type | Size (mm) | Weight (kg/m) | Size (in) | Weight (lbs/in) |
|---|---|---|---|---|
Flat Tube | A*B*T1*T2 | A*B*T1*T2 | ||
| FT44 | 44*25*3.2*3.2 | 0.8 | 7/4" x 1" x 1/8" x 1/8" | 1.76 |
| FT50A | 51*25*3*3 | 0.79 | 2" x 1" x 1/8" x 1/8" | 1.74 |
| FT50B | 51*25*6.4*6.4 | 1.54 | 2" x 1" x 1/4" x 1/4" | 3.4 |
| FT76 | 76*35*3*6 | 1.55 | 3" x 11/8" x 1/8" x 1/4" | 3.42 |
| FT80 | 80*60*5*5 | 2.5 | 25/8" x 19/8" x 3/16" x 3/16" | 5.51 |
| FT91A | 91*38*4*4 | 1.78 | 7/2" x 3/2" x 3/16" x 3/16" | 3.92 |
| FT112A | 112*91*6.4*6.4 | 4.46 | 9/2" x 7/2" x 1/4" x 1/4" | 9.83 |
| FT120 | 120*45*3*3 | 2 | 19/4" x 7/4" x 1/8" x 1/8" | 4.41 |
| FT175 | 175*50*9*9 | 7 | 55/8" x 2" x 3/8" x 3/8" | 15.4 |
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Construction
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Manufacturing
Metals and mining
Microelectronics
Oil and gas
Pharmaceutical
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Pulp and paper
Recreation
Telecommunications
Transportation
Water and wastewater treatment
Features:
Corrosion resistance
Low maintenance cost
Flame retardant
Low installation cost
Suitable for heavy metal environments
Long service life
Non-conductive and non-thermally-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 economy grade, with excellent 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 structural profiles are widely used in various applications, combining corrosion resistance, high strength, dimensional stability and light weight, along with thermal insulation and electrical insulation properties. Durable Greenlogy TEC profiles can provide many years of low-maintenance service in areas where steel, aluminum or wood components are traditionally used. Today, these profiles are often used in highly corrosive applications that previously required stainless steel and other expensive components.
Greenlogy TEC profiles
Mechanical properties | ASTM | Unit | Value | Unit | Value |
|---|---|---|---|---|---|
Tensile stress, LW | D-638 | psi | 30000 | kgf/m² | 21092086 |
Tensile stress, CW | D-638 | psi | 7000 | kgf/m² | 4921487 |
Tensile modulus, LW | D-638 | 10^6psi | 2.5 | 10^6kgf/m² | 1758 |
Tensile modulus, CW | D-638 | 10^6psi | 0.8 | 10^6kgf/m² | 562 |
Compressive stress, LW | D-695 | psi | 30000 | kgf/m² | 21092086 |
Compressive stress, CW | D-695 | psi | 15000 | kgf/m² | 10546043 |
Compressive modulus, LW | D-695 | 10^6psi | 2.5 | 10^6kgf/m² | 1758 |
Compressive modulus, CW | D-695 | 10^6psi | 1 | 10^6kgf/m² | 703 |
Flexural stress, LW | D-790 | psi | 30000 | kgf/m² | 21092086 |
Flexural stress, CW | D-790 | psi | 10000 | kgf/m² | 7030695 |
Flexural modulus, LW | D-790 | 10^6psi | 1.8 | 10^6kgf/m² | 1266 |
Flexural modulus, CW | 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 strength | 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 rods and square rods
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* | E-84 | Flame spread index | Max. 25 |
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 face
*Applies to ISOFR and VEFR only
Application Scenarios
The structural pultruded flat tube (orthophthalic resin) is suitable for load-bearing and support structures requiring strength and corrosion resistance, such as platform walkways, handrail systems, brackets and frames. Its flat cross-section facilitates connection and installation and can replace some traditional metal profiles, making it suitable for corrosive environments such as chemical processing, water treatment and marine applications.
Selection Guidance
Selection requires comprehensive consideration of load type, span, support conditions and service environment to determine the appropriate cross-section size and wall thickness. Flat tubes of different specifications differ in load capacity and stiffness. We recommend consulting our technical staff based on actual working conditions to obtain suitable selection recommendations.
Product Advantages
This flat tube is made with orthophthalic resin and glass fiber reinforcement, offering good physical properties, corrosion resistance and a light weight with high strength. The pultrusion process ensures full fiber impregnation and continuous forming, giving the product stable mechanical properties and dimensional consistency, suitable for high-strength, long-span applications.
Inquiry Guidance
For detailed specifications, dimensional tolerances, performance parameters or commercial terms (such as minimum order quantity and lead time), please contact us for detailed specifications and a quotation. We can provide technical support and customized solutions based on your project requirements.
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.
