Yingnai FRP I-Beam is a pultruded structural member designed for beams, platforms, equipment frames, pipe supports and industrial walkways in corrosive environments. The I-shaped section efficiently resists bending while fiberglass reinforcement provides high strength-to-weight performance. Beam depth, flange width, thickness, resin system and length can be customized for project-specific structural requirements.
| Item | Typical Technical Specification |
| Product | FRP I-Beam |
| Cross-Section | Pultruded I-shaped structural beam with two flanges and a central web |
| Typical Size Range | Depth 25–300 mm; flange width 15–150 mm; web/flange thickness 4–15 mm |
| Dimension Designation | Depth H × flange width B × web thickness tw × flange thickness tf |
| Standard Length | 6 m standard; longer members can be produced subject to transport |
| Material System | Pultruded E-glass or ECR-glass reinforcement in an isophthalic polyester, vinyl ester or project-selected thermoset resin matrix |
| Mechanical Properties | Density 1.7–2.0 g/cm³; longitudinal tensile strength typically ≥200 MPa; longitudinal flexural strength typically ≥200 MPa; flexural modulus typically ≥17 GPa |
| Structural Behaviour | Efficient for major-axis bending; lateral stability and web bearing shall be checked |
| Connection | Bolted gusset plates, seated connections, bonded plates or engineered FRP connectors |
| Typical Applications | Platforms, equipment frames, pipe racks, walkways, bridge decks and industrial support structures |
| Inspection | Dimensional inspection, straightness, twist, cut length, surface condition, wall thickness, cure and Barcol hardness |
| Applicable Standards | ASTM D3917, ASTM D4385, ASTM D638, ASTM D790, ASTM D7290 and ASTM D2583 |
| Selected Standard Sizes | |||
| Profile Size | Unit Weight | Profile Size | Unit Weight |
| 200 × 100 × 10 mm | 7.40 kg/m | 150 × 150 × 7.2 mm | 6.00 kg/m |
| 150 × 100 × 6.5 mm | 4.50 kg/m | 125 × 125 × 9.4 mm | 6.50 kg/m |
| 110 × 50 × 6 mm | 2.12 kg/m | 70 × 25 × 4 mm | 0.85 kg/m |
| 65 × 25 × 3 mm | 0.64 kg/m | 58 × 15 × 4.5 mm | 0.67 kg/m |
| 38 × 15 × 4 mm | 0.50 kg/m | 33 × 20 × 4 mm | 0.48 kg/m |
| 30 × 20 × 10 × 4 mm | 0.41 kg/m | 25 × 40 × 15 × 4 mm | 0.57 kg/m |
| 50 × 25 × 15 × 4 mm | 0.64 kg/m | 25 × 15 × 4 mm | 0.37 kg/m |
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