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Products / Structural Profiles - U-Channel Square Tube Handrail Profile (Orthophthalic Resin)
Structural Profiles - U-Channel Square Tube Handrail Profile (Orthophthalic Resin)
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Greenlogy TEC
FRP pultruded profiles use glass fiber reinforcement as the reinforcing body and resin as the matrix, with glass fiber cloth as the covering reinforcing layer; after full impregnation, they are heated, formed and cured in a metal mold and shaped under the traction of a pulling machine. This new type of composite material has good physical properties and is widely used in high-strength, large-span applications.
Type | Size (mm) | Weight (kg/m) | Size (in) | Weight (lbs/in) |
|---|---|---|---|---|
U-shaped Square 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
Recreation
Telecommunications
Transportation
Water and wastewater treatment
Features:
Corrosion resistance
Low maintenance
Flame retardant
Low installation cost
Heavy-metal safe
Long service life
Non-conductive and 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 | Acid, alkali and other harsh corrosive environments |
IFR-25 | Isophthalic type | Oxygen index 28 and above | VEFR: economical, good performance, 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, with thermal insulation and electrical insulation properties. Durable Greenlogy TEC profiles provide years of low-maintenance service in areas where steel, aluminum or wood members are traditionally specified. Today, these profiles are often used in highly corrosive applications that previously required stainless steel and other costly components.
Greenlogy TEC profiles
Mechanical properties | ASTM | Unit | Value | Unit | Value |
|---|---|---|---|---|---|
Tensile strength, LW | D-638 | psi | 30000 | kgf/m² | 21092086 |
Tensile strength, 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 strength, LW | D-695 | psi | 30000 | kgf/m² | 21092086 |
Compressive strength, 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 strength, LW | D-790 | psi | 30000 | kgf/m² | 21092086 |
Flexural strength, 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 strength | 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 | % maximum | 0.45 |
Density | D-792 | lbs./in.³ | 0.062-0.07 |
Coefficient of thermal expansion, LW | D-696 | 10^-6in./in./℃ | 8 |
Flame retardant performance | ASTM | Unit | Value |
|---|---|---|---|
Tunnel test* | E-84 | Flame spread | 25 max |
Flammability* | D-635 | --- | Non-burning |
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
This U-shaped square tube handrail profile is suitable for building railings, bridge walkway handrails, edge protection for platforms and walkways, and other applications with requirements for strength and corrosion resistance. Its glass fiber reinforced structure is suitable for large-span, high-strength installation environments, and can also be used in chemical, coastal, and other projects susceptible to moisture and chemical media. Please contact us to confirm a suitable solution based on your project conditions.
Selection Guidance
When selecting, start with the cross-section dimensions, wall thickness, and unit weight, and match them to the handrail span, installation method, and load requirements. The table provides various A*B*T specifications and their corresponding weights for preliminary screening according to structural design requirements. If you need recommendations for specific spans and loads, please contact us for detailed specifications and selection advice.
Product Advantages
This profile uses glass fiber as reinforcement and resin as binder, and is formed through impregnation, heated compression molding and curing, and pultrusion. It offers good physical performance and corrosion resistance. Compared with traditional metal profiles, it is lighter in weight, easier to transport and install on site, and is suitable for high-strength and relatively large-span applications. Specific performance should be evaluated according to actual service conditions; please contact us for further information.
Inquiry Guidance
If you need to confirm commercial information such as specifications, batch quantities, or delivery times, please contact us for detailed specifications and a quotation. Please provide the required cross-section dimensions, quantity, and service environment, and we will arrange follow-up communication accordingly. All commercial terms can be further negotiated according to 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.
