Structural Profiles - Isophthalic Cloverleaf Tube
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Genius FRP
FRP structural shapes profile is made of glass fiber reinforced material, resin as adhesive, glass fiber cloth as a package reinforcement layer, through the thorough penetration, in the metal mold heating, molding, curing, drawing in the traction machine pulled A new type of composite material, with good physical properties, widely used in high strength, large span Situation.

Varieties | Size(mm) | Weight(kg/m) | Size(in) | Weight(lbs/in) |
Plum 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

Architectural
Bridge & Highway
Chemical
Food & Beverage
Manufacturing
Metals & Mining
Microelectronics
Oil & Gsa
Pharmaceutical
Power
Pulp & Paper
Recreation
Telecommunications
Transportation
Water & Wastewater
The characteristics:
Corrosion Resistant
Low Maintenance
Fire Retardant
Low Install Cost
Heavy Metal Safe
Long Service Life
Electrically & Thermally Non Conductive
High Strength-to-Weight Ratio
Introduction of raw materials——Resin type
Code | Resin type | Flame retardant property | Recommended usage occasions |
VEFR-25 | Vinyl type | Oxygen index 28 or above | Acid, alkali and other corrosive harsh environment |
IFR-25 | Meta benzene | Oxygen index 28 or above | A VEFR type economy, and excellent, moderate acid alkali and solvent |
OFR-25 | Ortho type | Oxygen index 28 or above | General acid and alkali environment |
Application:
Genius© pultruded fiberglass structural shapes from Genius Composite Inc. are used in a wide range of applications and provide a unique combination of corrosion resistance, high strength, dimensional stability and light weight, along with thermal and electric non-conductivity. Durable Genius shapes provide years of low maintenance service in areas where steel, aluminum or wood components are traditionally specified. Today ,these shapes are often used in highly corrosive applications where stainless steel and other expensive components were once required.
Genius Shapes
Mechanical Properties | ASTM | Units | Value | Units | Value |
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,LW | D-256 | ft.-lbs./in. | 25 | kg/m | 3.46 |
Notched Izod Impact,CW | D-256 | ft.-lbs./in. | 4 | kg/m | 0.55 |
Excludes Round Rod and Square Bar
Physical Properties | ASTM | Units | Value |
Barcoal | 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 |
Flammability Properties | ASTM | Units | Value |
Tunnel test* | E-84 | Flame Spread | 25 max |
Flammability* | D-635 | --- | Non-Burning |
Electrical Properties | ASTM | Units | Value |
Arc Resistance,LW | D-495 | seconds | 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
*Pertains to ISOFR and VEFR only
Application Scenarios
With its corrosion resistance, high strength and lightweight properties, the isophthalic cloverleaf tube is widely used in structural support and frame systems in chemical, marine, wastewater treatment and other fields. Its unique cloverleaf cross-section design reduces weight while maintaining load-bearing capacity, making it suitable for applications with demanding span and corrosion resistance requirements.
Selection Guide
Selection should take into account load conditions, span, service environment and installation method. Cloverleaf tubes in different specifications have different cross-sectional dimensions and weights, meeting diverse structural needs. Contact us for detailed specifications and selection advice; our technical team will provide professional support based on your specific working conditions.
Product Advantages
The isophthalic resin system gives the product excellent corrosion resistance and weather resistance, extending service life. Formed by the pultrusion process, it has a high fiber content and outstanding longitudinal strength while remaining lightweight for easy transport and installation. In addition, FRP material is insulating and non-magnetic, making it suitable for applications with electromagnetic interference requirements.
Inquiry Guide
For detailed product parameters, prices and supply information, please contact us at any time. Please provide specific specifications, quantity and service environment, and we will provide a professional quotation and technical support as soon as possible.
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