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Product Overview
Our 100x100x6mm FRP (Fiber Reinforced Polymer) square tubes are engineered for structural applications requiring good strength-to-weight ratio and corrosion resistance. These pultruded profiles feature 100 mm x 100 mm outer dimensions with a 6 mm wall thickness, providing reliable structural properties at approximately 4.15 kg/m.
Technical Specifications
- Outer Dimensions: 100 × 100 mm (3.94 × 3.94 inches)
- Wall Thickness: 6 mm (0.236 inches)
- Inner Dimensions: 88 × 88 mm (3.46 × 3.46 inches)
- Standard Length Options: 3 to 12 meters (9.8 to 39.4 feet)
- Weight: Approximately 4.15 kg/m (2.79 lbs/ft)
- Color: Standard yellow or customizable upon request
- Surface Finish: Smooth, UV-resistant coating
- Tolerance: ±2mm on dimensions
Material Properties
- Strength-to-Weight Ratio: Approximately 75% lighter than steel of equal cross-section and 30% lighter than aluminum of equal cross-section while maintaining good structural properties
- Corrosion Resistance: Resistant to salt water, chemicals, acids, and alkaline environments
- Temperature Performance: Suitable for service between -40°C to +80°C (-40°F to +176°F)
- Electrical Insulation: Non-conductive properties help reduce electrical hazards
- Thermal Insulation: Lower thermal conductivity than metals
- Fire Performance: Fire-retardant formulations available to meet common industry standards
- Impact Resistance: Absorbs vibration and impact better than brittle materials
- Dimensional Stability: Minimal expansion/contraction with temperature fluctuations
Performance Benefits
- Low Maintenance: Requires no painting or protective coatings under normal conditions
- Long Service Life: Durable in many environments with minimal degradation when properly specified
- Cost Efficiency: Can reduce lifecycle costs in corrosive applications
- Easy Installation: Can be cut, drilled, and modified with standard tools
- Chemical Resistance: Withstands exposure to many chemicals without deterioration
- Weather Resistance: Performs well in moist, humid, and variable weather conditions
Manufacturing Process
Our FRP square tubes are produced using the pultrusion process for consistent quality and dimensional control:
- Material Selection: E-glass fibers combined with vinyl ester or polyester resins
- Fiber Arrangement: Combination of unidirectional roving and multi-directional mat reinforcements
- Resin Impregnation: Complete wet-out to minimize voids
- Heat Curing: Controlled temperature profile for cross-linking
- Quality Control: Dimensional and visual inspection per project requirements
Industry Applications
Construction & Infrastructure
- Support beams for pedestrian bridges
- Guardrail systems and handrails
- Structural frameworks for building facades
- Cable management systems in tunnels and bridges
- Walkways in wet environments
Chemical & Industrial
- Support structures in chemical processing plants
- Framework for equipment in wastewater treatment facilities
- Material handling systems in corrosive environments
- Safety barriers around hazardous areas
- Cooling tower components
Marine & Offshore
- Deck gratings and ladders on vessels
- Support structures for offshore platforms
- Dock and pier components
- Aquaculture equipment frames
- Marina walkways and structures
Electrical & Utility
- Cable trays and conduit supports
- Transformer station structures
- Electrical insulation components
- Telecommunications tower elements
- Utility pole cross-arms
Installation Guidelines
For optimal performance:
- Use stainless steel fasteners when connecting FRP components
- Allow 1-2mm expansion gap for thermal movement
- Apply sealant to cut edges to maintain moisture resistance
- Design connections to distribute loads evenly
- Follow project-specific torque specifications for bolted connections
Customization Options
- Fire-retardant formulations available
- Custom colors to match project requirements
- Special coatings for extreme environments
- Pre-drilled holes and cut-to-length service
- Custom profiles and dimensions upon request
Compliance & Certifications
Our FRP square tubes are manufactured under quality management systems and can meet common industry standards:
- ISO 9001:2015 quality management system
- ASTM D-635 fire retardancy (with FR additives)
- EU RoHS compliance for environmental safety
- ASTM E-84 flame spread and smoke development
- ISO 14125 flexural properties of fiber-reinforced plastic composites
FAQ
What are the dimensions of 100x100x6mm FRP square tube?
100mm x 100mm outer dimensions with 6mm wall thickness. Cross-sectional area and moment of inertia depend on the exact laminate design.
What is the weight per meter?
Approximately 4.15 kg/m. This reduces structural loading, transportation costs, and installation labor compared to steel square tubing of equal cross-section.
What is the modulus of elasticity?
Typical E-modulus for pultruded FRP profiles is in the range of 20,000-30,000 MPa along the fiber direction. Specific values depend on fiber architecture and resin system.
Is 100x100x6mm FRP tube corrosion resistant?
Yes. FRP resists many chemicals, moisture, saltwater, and atmospheric exposure. Performance depends on resin selection and operating conditions.
What applications use 100x100x6mm FRP square tube?
Industrial platform framing, handrail supports, equipment mounting, structural columns, conveyor frames, cooling tower structures, and architectural features requiring lightweight strength.
What temperature range does it support?
Standard formulations are typically suitable for continuous service between -40°C and +80°C. High-temperature resins can extend this range.
Can 100x100x6mm FRP tube be customized?
Yes. Standard colors, fire-retardant formulations, UV-resistant coatings, and custom lengths up to 12m are available.
How does FRP tube compare to steel tube?
FRP is approximately one-quarter the density of steel, non-conductive, and corrosion-resistant, which can reduce maintenance in aggressive environments compared to painted or galvanized steel.
Why Choose Our FRP Square Tubes?
Our 100x100x6mm FRP square tubes offer a practical combination of strength, durability, and corrosion resistance for demanding applications. When properly specified, they can reduce lifetime maintenance and extend service life in corrosive environments compared to traditional materials.
Contact our engineering team today for technical support, custom specifications, or to discuss your specific application requirements. You can also compare square fiberglass tubing in other dimensions.
Request a quote: Need this product for your project? Contact us for a quote — our engineering team can help with specifications, custom sizes, and bulk orders.
See the full fiberglass square tube size range for custom dimensions and bulk pricing.
