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Products / Structural Profiles - U-Shaped Square Tube Handrail Profile (Vinyl Ester)
Structural Profiles - U-Shaped Square Tube Handrail Profile (Vinyl Ester)
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Greenlogy TEC
FRP pultruded profiles use glass fiber reinforcement as the base material, resin as the binder, and glass fiber cloth as the covering reinforcement layer. After full impregnation, they are heated, formed, and cured in a metal mold and pulled by a pulling 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) |
|---|---|---|---|---|
U-shaped Tube Handrail Profile | A*B*T | A*B*T | ||
| 62*59*4.5 | 1.5 | 5/2" x 9/4" x 3/16" | 3.31 | |
| 62*60*5 | 1.7 | 5/2" x 19/8" x 3/16" | 3.75 |
Markets
Construction
Bridges and highways
Chemical
Food and beverage
Manufacturing
Metals and mining
Microelectronics
Oil and gas
Pharmaceutical
Power
Pulp and paper
Leisure
Telecommunications
Transportation
Water and wastewater treatment
Features:
Corrosion resistance
Low maintenance
Flame retardant
Low installation cost
Heavy-metal resistant
Long service life
Non-conductive and thermally insulating
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 is 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 |
Application scope:
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 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, 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 |
Elastic modulus | 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 steel and square steel
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 | 25 max |
Flammability* | 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 | V/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 U-shaped square-tube handrail profiles are suitable for railing and handrail systems on bridge walkways, plant platforms, and in corrosive environments such as chemical and offshore facilities, and can replace conventional metal profiles. Their surface is weather-resistant and maintenance-free, making them suitable for long-term outdoor use. Contact us with your project environment and installation method so we can recommend a suitable solution.
Selection Guide
When selecting, please consider the handrail span, load requirements and installation nodes to determine the profile cross-section dimensions and wall thickness, and check compatibility with existing railing posts and connectors. Different cross-sections and wall thicknesses correspond to different weights and mechanical performance; please refer to actual requirements for specific parameters. You are welcome to contact us for detailed specifications and quotations; our technical staff can assist in confirming the selection.
Product Advantages
This profile is pultruded from glass fiber reinforced material and resin, featuring light weight and high strength, corrosion resistance, electrical insulation and non-conductivity, and maintenance-free operation, with a long service life in humid, salt-spray and chemical media environments. The surface can be colored, and the appearance is close to metal but requires no frequent anti-corrosion treatment. You are welcome to contact us to learn about material properties and applicable working conditions.
Inquiry Guidance
For business information such as dimensions, color options, packaging methods and bulk supply, you are welcome to contact us for detailed specifications and quotations. We will provide corresponding suggestions based on your drawings or operating conditions. Please provide the required cross-section, length and quantity so that we can respond quickly.
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.
