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Structural Profiles - Seven-Hole Hollow Plate (Isophthalic)
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Greenlogy TEC
FRP pultruded profiles are made from glass fiber reinforcement as the raw material, 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 pulled out by a pulling machine. This new composite material has good physical properties and is widely used in high-strength, long-span applications.
Type | Size (mm) | Weight (kg/m) | Size (in) | Weight (lbs/in) |
| 600*8.5*56*8 | 25.4 | 24" x 5/16" x 2" x 5/16" | 56 |
Application markets
Construction
Bridges and highways
Chemical
Food and beverage
Manufacturing
Metals and mining
Microelectronics
Oil and gas
Pharmaceutical
Power
Pulp and paper
Leisure and recreation
Telecommunications
Transportation
Water and wastewater
Features:
Corrosion resistance
Low maintenance cost
Flame retardant
Low installation cost
Safe for contact with heavy metals
Long service life
Non-conductive and thermally non-conductive
High strength-to-weight ratio
Raw material introduction — resin types
Code | Resin type | Flame retardant performance | 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: economical, with good performance, resistant to moderate 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 various applications, combining corrosion resistance, high strength, dimensional stability and light weight with thermal insulation and electrical insulation properties. Durable Greenlogy TEC profiles provide years of low-maintenance service in areas where steel, aluminum or wood components are traditionally specified. Today, these profiles are commonly used in highly corrosive environments 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 rods and square rods
Physical properties | ASTM | Unit | Value |
|---|---|---|---|
Barcol hardness | D-495 | --- | 45 |
24-hour water absorption | D-570 | Maximum % | 0.45 |
Density | D-792 | lbs./in.³ | 0.062-0.07 |
Coefficient of thermal expansion, LW | D-696 | 10^-6in./in./℃ | 8 |
Flammability | ASTM | Unit | Value |
|---|---|---|---|
Tunnel test* | E-84 | Flame spread | Maximum 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 seven-hole hollow profile (isophthalic) is suitable for structural and load-bearing locations requiring strength, span and corrosion resistance, such as building platforms, bridge and tunnel components, support structures in chemical and food processing environments, and walkways and frames on manufacturing and mining sites. To confirm a solution for your specific operating conditions, contact us for detailed specifications and a quotation.
Selection guidance
When selecting, start from conditions such as load requirements, span, support spacing, service environment and installation method, and judge how well the isophthalic resin system matches the required corrosion resistance and other properties. Please share your drawings or operating parameters with us so we can help confirm suitable specifications and configuration.
Product advantages
This structural profile uses glass fiber reinforcement and resin as its matrix, formed through impregnation, heated compression molding and curing, and pultrusion. It offers good physical properties, is suitable for high-strength and long-span applications, and is easy to cut and install on site. The above describes general product characteristics; for specific performance data, refer to the technical documentation we provide. Contact us for detailed specifications and a quotation.
Inquiry guidance
To learn about specifications, performance or supply information for the structural profile - seven-hole hollow profile (isophthalic), please contact us and state your application and required quantity. We will provide corresponding technical support and a commercial proposal. Contact us for detailed specifications and a quotation.
Service environment
- FRP profiles resist attack by acids, alkalis and salts, making them suitable for chemical and food and beverage plants and other locations with moisture or corrosive media.
- The glass fiber reinforced composite structure withstands outdoor exposure, including UV radiation and temperature fluctuations, and is suitable for buildings, bridges and highways, and metal and mining environments.
- FRP profiles have low thermal conductivity, helping reduce heat transfer under moist or condensing conditions, and are suitable for microelectronics and manufacturing environments requiring stable performance.
- FRP profiles are non-magnetic and do not spark, so they can be used safely near sensitive equipment or in environments where metal materials may pose a risk.
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.
