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Structural Profiles - Plum Tube (Vinyl Ester)
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Greenlogy TEC
FRP pultruded profiles are a new type of composite material based on glass fiber reinforcement, with 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, then pulled by a pultrusion machine. They have good physical properties and are widely used in high-strength and large-span applications.
Type | Size (mm) | Weight (kg/m) | Size (in) | Weight (lbs/in) |
|---|---|---|---|---|
Multi-lobed Tube | D1*D2*T | D1*D2*T | ||
CT32A | 19*32*6.4 | 1.11 |
3/4" x 5/4" x 1/4" | 2.45 |
CT34A | 19*34*7.5 | 1.3 | 3/4" x 5/4" x 5/16" | 2.87 |
CT32B | 25*32*3.5 | 0.66 | 1" x 5/4" x 1/8" | 1.46 |
CT42 | 29*42*6.4 | 1.35 | 9/8" x 13/8" x 1/4" | 2.98 |
CT45A | 28*45*8.5 | 1.86 | 9/8" x 7/4" x 5/16" | 4.1 |
CT45B | 32*45*6.4 | 1.1 | 5/4" x 7/4" x 1/4" | 2.43 |
CT51 | 51*36*7 | 1.75 | 2" x 3/2" x 1/4" | 3.86 |
CT90B | 71*90*9.5 | 5.7 | 11/4" x 7/2" x 3/8" | 12.6 |
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
Features:
Corrosion resistance
Low maintenance
Flame retardant
Low installation cost
Safe for use in heavy metal environments
Long service life
Non-conductive, non-thermal 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 | Harsh corrosive environments such as acids and alkalis |
IFR-25 | Isophthalic type | Oxygen index 28 and above | VEFR type: economical, good performance, moderate acid/alkali and solvent resistance |
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 traditionally specifying steel, aluminum or wood components. Today, these profiles are often used in highly corrosive applications where stainless steel and other expensive components were previously required.
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 | Max % (% max) | 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 | 25 max |
Combustibility* | 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
Application Scenarios
Vinyl-based multi-lobed (quincunx-profile) FRP tubes are commonly used for structural supports, handrails, platform frames and in chemical, marine and similar environments where corrosion resistance and strength are required. Their multi-lobed profile makes them easy to combine with other profiles, suiting space-constrained applications or those requiring lightweight construction. For specific applications, please discuss working conditions with our technical team to select the right product.
Selection Guidance
When selecting, determine the tube's cross-section dimensions and wall thickness based on load, span, corrosive environment and installation method. Multi-lobed tubes offer multi-directional load-bearing characteristics and are suitable for combined stresses. Contact us with your detailed working conditions and we will help you choose the right specification.
Product Advantages
Fiberglass-reinforced polymer (FRP) multi-lobed tubes are lightweight, high-strength, corrosion-resistant, insulating and non-magnetic, and are easy to process and install. The vinyl resin matrix further improves chemical corrosion resistance, making them suitable for harsh environments. Compared with metal, they offer long service life and low maintenance cost.
Inquiry Guidance
For specific dimensions, weight, price, delivery time and other information on multi-lobed tubes, please contact us. We can provide customized solutions and professional advice based on your needs.
Operating Environment
- FRP multi-lobed tubes with a vinyl resin matrix are suitable for chemical, pharmaceutical, electroplating and other applications involving acid, alkali and salt corrosive media, and can be used long-term in humid and corrosive atmospheres.
- The pultruded fiberglass-reinforced structure enables multi-lobed tubes to be used in outdoor and indoor spanning, support and protective structures, withstanding general atmospheric conditions such as sunlight and rain.
- In cleanroom workshops such as microelectronics, food and beverage, vinyl resin multi-lobed tubes have a smooth surface that resists dust accumulation and is easy to clean and maintain.
- When used for handrails, supports and grating supports in bridges and highways, power, and metal and mining applications, please confirm selection with us based on on-site temperature, humidity and contact media.
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.
