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Structural Profiles - Channel (Isophthalic)
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Greenlogy TEC
FRP profiles are a new type of composite material made with glass fiber reinforcement as the base material, resin as the binder, and glass fiber cloth as the outer reinforcing layer; after thorough impregnation, they are heated, formed, and cured in a metal mold and then pultruded (drawn) by a pulling machine. They have good physical properties and are widely used in high-strength, large-span applications.
Type | Size (mm) | Weight (kg/m) | Size (in) | Weight (lbs/in) |
|---|---|---|---|---|
Channel Steel | A*B*T1*T2 | A*B*T1*T2 | ||
| C25 | 25*14*3*3 | 0.28 | 1" x 1/2" x 1/8" x 1/8" | 0.62 |
| C26 | 26*18*3.2*3.2 | 0.3 | 1" x 11/16" x 1/8" x 1/8" | 0.66 |
| C31 | 31*23*4*4 | 0.65 | 5/4" x 15/16" x 3/16" x 3/16" | 1.43 |
| C32 | 32*13*3*3 | 0.25 | 5/4" x 1/2" x 1/8" x 1/8" | 0.55 |
| C33 | 33*29*4*4 | 0.65 | 5/4" x 19/16" x 3/16" x 3/16" | 1.43 |
| C36 | 36*30*4*4 | 0.68 | 3/2" x 5/4" x 3/16" x 3/16" | 1.5 |
| C40 | 40*24*3.2*3.2 | 0.5 | 25/16" x 15/16" x 1/8" x 1/8" | 1.1 |
| C45 | 45*28*6.4*6.4 | 1.07 | 7/4" x 9/8" x 1/4" x 1/4" | 2.36 |
| C50 | 50*14*3.2*3.2 | 0.44 | 2" x 9/16" x 1/8" x 1/8" | 0.97 |
| C52 | 52*50*6*6 | 1.63 | 33/16" x 2" x 1/4" x 1/4" | 3.59 |
| C70 | 70*30*4.5*4.5 | 0.95 | 11/4" x 5/4" x 3/16" x 3/16" | 2.09 |
| C75 | 75*35*5*5 | 1.37 | 3" x 11/8" x 3/16" x 3/16" | 3.02 |
| C76A | 76*22*6.4*6.4 | 1.31 | 3" x 7/8" x 1/4" x 1/4" | 2.89 |
| C76B | 76*38*6.4*6.4 | 1.7 | 3" x 3/2" x 1/4" x 1/4" | 3.75 |
| C80 | 80*40*10*10 | 2.7 | 25/8" x 25/16" x 3/8" x 3/8" | 5.95 |
| C90A | 90*35*5*5 | 1.49 | 7/2" x 11/8" x 3/16" x 3/16" | 3.28 |
| C90B | 90*35*8*8 | 2.1 | 7/2" x 11/8" x 5/16" x 5/16" | 4.63 |
| C102A | 102*27*3.2*3.2 | 0.91 | 4" x 1" x 1/8" x 1/8" | 2.01 |
| C102B | 102*29*4.8*4.8 | 1.45 | 4" x 9/8" x 3/16" x 3/16" | 3.2 |
| C102C | 102*30*4*4 | 1.2 | 4" x 19/16" x 3/16" x 3/16" | 2.65 |
| C102E | 102*44*4.8*4.8 | 1.65 | 4" x 7/4" x 3/16" x 3/16" | 3.64 |
| C102F | 102*44*6.4*6.4 | 2.1 | 4" x 7/4" x 1/4" x 1/4" | 4.63 |
| C117 | 117*85*5*5 | 2.7 | 37/8" x 27/8" x 3/16" x 3/16" | 5.95 |
| C120A | 120*25*5*5 | 1.52 | 19/4" x 1" x 3/16" x 3/16" | 3.35 |
| C120B | 120*30*5*5 | 1.62 | 19/4" x 19/16" x 3/16" x 3/16" | 3.57 |
| C120C | 120*40*5*5 | 1.81 | 19/4" x 25/16" x 3/16" x 3/16" | 3.99 |
| C145 | 145*25*5*5 | 1.8 | 23/4" x 1" x 3/16" x 3/16" | 3.97 |
| C150A | 150*100*6.4*6.4 | 4.1 | 6" x 4" x 1/4" x 1/4" | 9.04 |
| C150B | 150*80*10*10 | 5.5 | 6" x 25/8" x 3/8" x 3/8"
| 12.13 |
| C152A | 152*42*4.8*4.8 | 2.03 | 6" x 13/8" x 3/16" x 3/16" | 4.48 |
| C152B | 152*42*6.4*6.4 | 2.72 | 6" x 13/8" x 1/4" x 1/4" | 6 |
| C152C | 152*42*8*8 | 3.5 | 6" x 13/8" x 5/16" x 5/16"
| 7.72 |
| C152D | 152*42*9.5*9.5 | 3.95 | 6" x 13/8" x 3/8" x 3/8" | 8.71 |
| C152E | 152*51*9.5*9.5 | 4.35 | 6" x 2" x 3/8" x 3/8" | 9.59 |
| C160 | 160*48*8*8 | 3.7 | 25/4" x 15/8" x 5/16" x 5/16" | 8.16 |
| C203A | 203*56*6.4*6.4 | 3.68 | 8" x 9/4" x 1/4" x 1/4" | 8.11 |
| C203B | 203*56*9.5*9.5 | 5.34 | 8" x 9/4" x 3/8" x 3/8"
| 11.77 |
| C203C | 203*102*12.7*12.7 | 9.2 | 8" x 4" x 1/2" x 1/2" | 20.28 |
| C210A | 210*55*5*5 | 2.95 | 33/4" x 9/4" x 3/16" x 3/16" | 6.5 |
| C210B | 210*80*5*5 | 3.42 | 33/4" x 25/8" x 3/16" x 3/16" | 7.54 |
| C210C | 210*85*5*5 | 3.52 | 33/4" x 27/8" x 3/16" x 3/16" | 7.76 |
| C240A | 240*72*8*8 | 5.7 | 19/2" x 11/4" x 5/16" x 5/16" | 12.57 |
| C240B | 240*115*5*5 | 4.4 | 19/2" x 9/2" x 3/16" x 3/16"
| 9.7 |
| C254 | 254*70*12.7*12.7 | 8.9 | 10" x 11/4" x 1/2" x 1/2"
| 19.62 |
| C292 | 292*70*12.7*12.7 | 9.8 | 23/2" x 11/4" x 1/2" x 1/2" | 21.61 |
| C300 | 300*55*5*5 | 3.85 | 12" x 9/4" x 3/16" x 3/16" | 8.49 |
| C310A | 310*115*5*5 | 5.1 | 49/4" x 9/2" x 3/16" x 3/16" | 11.24 |
| C381 | 381*90*10*10 | 10.5 | 15" x 7/2" x 3/8" x 3/8" | 23.15 |
| C436 | 436*90*10*10 | 11.7 | 69/4" x 7/2" x 3/8" x 3/8" | 25.79 |
| C491 | 491*90*12*12 | 14.3 | 77/4" x 7/2" x 1/2" x 1/2"
| 31.53 |
| C610 | 610*76*6.4*6.4 | 9.2 | 24" x 3" x 1/4" x 1/4" | 20.28 |
| C902 | 902*100*10*10 | 20.6 | 71/2" x 4" x 3/8" x 3/8" | 45.42 |
| C970 | 970*40*10*10 | 19.9 | 153/4" x 25/16" x 3/8" x 3/8" | 43.87 |
Markets
Construction
Bridges & Highways
Chemical
Food & Beverage
Manufacturing
Metals & Mining
Microelectronics
Oil & Gas [source reads 'Gsa' — apparent typo, please confirm]
Pharmaceutical
Power
Pulp & Paper
Recreation
Telecommunications
Transportation
Water & Wastewater
Features:
Corrosion resistance
Low maintenance
Flame retardant
Low installation cost
Heavy-metal resistant
Long service life
Electrical and thermal insulation
High specific strength
Raw material introduction — resin types
Code | Resin type | Flame retardant performance | Recommended applications |
|---|---|---|---|
VEFR-25 | Vinyl ester type | Oxygen index 28 or above | Acid, alkali and other harsh corrosive environments |
IFR-25 | Isophthalic type | Oxygen index 28 or above | An economical VEFR resin with good performance and resistance to moderate acids, alkalis and solvents |
OFR-25 | Orthophthalic type | Oxygen index 28 or above | General acid and alkali environments |
Applications:
Greenlogy TEC pultruded FRP profiles are used in a wide range of applications, combining corrosion resistance, high strength, dimensional stability and light weight with thermal insulation and non-conductivity. Durable Greenlogy TEC profiles deliver years of low-maintenance service in areas traditionally specified for steel, aluminum or wood components. 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 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 |
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 bars and square bars
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 retardant performance | ASTM | Unit | Value |
|---|---|---|---|
Tunnel test* | E-84 | Flame spread | Max 25 |
Flame resistance* | 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
Structural profile – channel steel (isophthalic) is commonly used for load-bearing and support locations requiring strength and corrosion resistance, such as platform frames, walkway supports, handrail posts, equipment brackets, and structural members in corrosive environments including chemical and water treatment. The isophthalic resin system makes it suitable for contact with general corrosive media. Contact us to describe your service environment so we can confirm suitability.
Selection Guide
When selecting, please note the cross-section dimensions (A*B*T1*T2), unit weight and required load-bearing span, and confirm connection and hole requirements according to the installation method. The table lists multiple specifications for comparison. If you are unsure which one to choose, contact us with your operating conditions and we will help recommend a suitable specification.
Product Advantages
The channel steel is made of glass fiber reinforcement and isophthalic resin by pultrusion, offering the characteristics common to composites such as light weight, high strength, corrosion resistance, electrical insulation and non-magnetic properties, and is easy to cut and install on site. Compared with traditional metal channel steel, it reduces maintenance requirements in corrosive environments, making it suitable for projects with durability requirements.
Inquiry Guide
For detailed specifications, dimensional tolerances, supply forms and quotations, please contact us. Please state the required specification, quantity and service environment, and we will provide support as soon as possible.
Service Environment
- Designed for FRP channel profile structural frames exposed to outdoor weathering, UV radiation and repeated wet-dry cycles, where the isophthalic resin matrix resists moisture absorption and surface degradation better than general-purpose resin systems.
- Suitable for chemically corrosive plant areas handling acids, alkalis, salts and oxidizing splashes, because the pultruded glass fiber reinforcement and cured resin are selected for corrosion resistance, whereas structural steel requires continuous coating.
- Maintains performance at ambient service temperatures typical of industrial walkways, platforms and support frames, retaining electrical insulation and non-sparking properties for areas near live equipment or where metal contact is a concern.
- Used in coastal, wastewater, chemical processing and other wet or saline environments, where the channel profile serves as a load-bearing member and its corrosion-resistant surface helps extend service life under continuous exposure.
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.
