Structural Profiles - Quincunx Tubes
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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 | 0.75*1.26*0.25 | 2.45 |
| CT34A | 19*34*7.5 | 1.3 | 0.75*1.34*0.3 | 2.87 |
| CT32B | 25*32*3.5 | 0.66 | 0.98*1.26*0.14 | 1.46 |
| CT42 | 29*42*6.4 | 1.35 | 1.14*1.65*0.25 | 2.98 |
| CT45A | 28*45*8.5 | 1.86 | 1.1*1.77*0.33 | 4.1 |
| CT45B | 32*45*6.4 | 1.1 | 1.26*1.77*0.25 | 2.43 |
| CT51 | 51*36*7 | 1.75 | 2.01*1.42*0.28 | 3.86 |
| CT90B | 71*90*9.5 | 5.7 | 2.8*3.54*0.37 | 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 | Standard color | Recommended usage occasions |
VEFR-25 | Vinyl type | Oxygen index 28 or above | Grass green,Yellow, Grey, Orange | Acid, alkali and other corrosive harsh environment |
IFR-25 | Meta benzene | Oxygen index 28 or above | Grass green,Yellow, Grey | A VEFR type economy, and excellent, moderate acid alkali and solvent |
OFR-25 | Ortho type | Oxygen index 28 or above | Grass green,Yellow, Grey | 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
As a type of structural profile, quincunx tubes are commonly used in frames and support positions requiring light weight, high strength and corrosion resistance, such as platform railings, ladders, supports and structural components in power and chemical environments. If you need to confirm suitability for your specific working conditions, please contact us.
Selection Guidance
During selection, match the cross-sectional dimensions, wall thickness and length according to the load type, span, mounting interface and corrosion resistance requirements. Different specifications vary in load capacity and self-weight. For specific dimensions and selection advice, please contact us for detailed specifications and a quotation.
Product Advantages
Quincunx tubes are pultruded from fiberglass reinforced materials and resin systems, offering a good strength-to-weight ratio, corrosion resistance and electrical insulation properties, making them suitable for replacing some traditional metal profiles. For different resin systems and surface treatment options, please contact us to confirm.
Inquiry Guidance
If you would like to know the available specifications, size range, supply forms and commercial terms of quincunx tubes, please provide your application scenario and required quantity, and we will recommend a suitable solution accordingly. Please contact us for detailed specifications and a quotation.
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