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Structural Profiles - Seven-Hole Hollow Profile (Vinyl Ester)
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Greenlogy TEC
Pultruded FRP profiles are a new type of composite material made with glass fiber reinforcement as the main material, resin as the adhesive, and glass fiber cloth as the covering reinforcement layer; after thorough impregnation, they are heated, formed, and cured in a metal mold and pulled by a pulling machine. They offer excellent physical properties and are 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
Recreation
Telecommunications
Transportation
Water and wastewater treatment
Features:
Corrosion resistance
Low maintenance cost
Flame retardant
Low installation cost
Safe in heavy-metal environments
Long service life
Non-conductive and non-thermal-conductive
High strength-to-weight ratio
Raw material introduction — resin type
Code | Resin type | Flame retardant performance | Standard color | Recommended applications |
|---|---|---|---|---|
VEFR-25 | Vinyl ester type | Oxygen index 28 and above | Grass green, yellow, gray, orange | Acid, alkali and other harsh corrosive environments |
IFR-25 | Isophthalic type | Oxygen index 28 and above | Grass green, yellow, gray | An economical VEFR product with good performance and moderate acid, alkali and solvent resistance |
OFR-25 | Orthophthalic type | Oxygen index 28 and above | Grass green, yellow, gray | General acid and alkali environments |
Applications:
Greenlogy TEC pultruded FRP profiles are widely used by Greenlogy TEC in various applications, combining corrosion resistance, high strength, dimensional stability and light weight, along with thermal insulation and non-conductive properties. Durable Greenlogy TEC profiles provide years of low-maintenance service in areas where steel, aluminum or wood components are traditionally used. Today, these profiles are commonly used in highly corrosive applications that previously required stainless steel and other expensive components.
Greenlogy TEC Profiles
Mechanical Properties | ASTM | Unit | 值（v） | Unit | 值（v） |
|---|---|---|---|---|---|
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 | D-732 | psi | 10000 | kgf/m² | 7030695 |
Notched Izod Impact, Longitudinal | D-256 | ft.-lbs./in. | 25 | kg/m | 3.46 |
Notched Izod Impact, Transverse | D-256 | ft.-lbs./in. | 4 | kg/m | 0.55 |
Excluding round rods and square bars
Physical Properties | ASTM | Unit | 值（v） |
|---|---|---|---|
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, longitudinal | D-696 | 10^-6in./in./℃ | 8 |
Flame retardant performance | ASTM | Unit | 值（v） |
|---|---|---|---|
Tunnel test* | E-84 | Flame spread | Max. 25 |
Flame resistance* | D-635 | --- | Non-combustible |
Electrical properties | ASTM | Unit | 值（v） |
|---|---|---|---|
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 = longitudinal, CW = crosswise, PF = perpendicular to laminate face
*Applies only to ISOFR and VEFR
Applications
The seven-hole hollow profile (vinyl ester) is suitable for applications requiring strength, corrosion resistance and light weight, such as building platforms, bridge walkways, chemical operating platforms, food processing equipment supports, manufacturing production lines and metal mining. Its structural design facilitates load-bearing and spanning applications and meets the requirements of various industrial environments.
Selection Guidance
When selecting, factors such as load requirements, span, support conditions and environmental corrosiveness should be considered comprehensively. The seven-hole hollow profile is available in different sizes and specifications, allowing the appropriate cross-section to be selected according to actual structural requirements. Contact us for detailed specifications and selection advice; our technical team will assist you with the selection.
Product Advantages
This profile is made from glass fiber reinforced material compounded with resin and formed by the pultrusion process. It features light weight, high strength, corrosion resistance and fatigue resistance. The seven-hole hollow structure reduces self-weight while maintaining mechanical performance, making installation and transport easier and making it suitable for long-span structures.
Inquiry Guidance
For detailed specifications, technical parameters or commercial terms for the seven-hole hollow profile (vinyl ester), please contact us for specifications and a quotation. We can provide customized solutions according to your project requirements.
Operating Environment
- This vinyl ester structural profile is pultruded from glass fiber reinforced material, resin and glass fiber cloth, and is suitable for indoor factory installation and outdoor structural applications.
- Its pultruded FRP structure makes it suitable for use in humid and chemically corrosive environments, such as chemical, food and beverage, and metal and mining facilities.
- With its high strength-to-weight ratio, the seven-hole hollow profile is used in construction, bridges and highways, and manufacturing projects where long spans are required.
- For exact temperature resistance and exposure limits, please contact us for a complete parameter list before specifying this profile.
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.
