When it comes to structural steel channels, the 250 x 90 Parallel Flange Channel (PFC) strikes a perfect balance of strength and versatility. Here’s a breakdown of its key dimensions and why they make it indispensable:
⚙️ Key Dimensions
| Feature | Measurement |
|---|---|
| Depth (W) | 250 mm |
| Flange Width (F) | 90 mm |
| Flange Thickness (FT) | 15 mm |
| Web Thickness (WT) | 8 mm |
| Root Radius | 12 mm |
| Weight | ≈35.5 kg/m |
📐 Why These Dimensions Matter
- Strength-to-Weight Efficiency
- The 15mm thick flanges resist bending stress, while the 10mm web handles shear – ideal for mid-span beams and bracing.
- Compatibility
- 90mm flange width bolts seamlessly to standard plates and columns (e.g., 100mm SHS/UC sections).
- Torsional Stability
- The 250mm depth provides exceptional resistance to twisting, critical for cantilevers and support frames.
🏗️ Top Applications
- Lintels & Openings: 90mm flanges distribute masonry loads evenly.
- Bracing Systems: 250mm depth resists buckling in seismic zones.
- Mezzanine Edges: Combines safety (toe-board mounting) and strength.
- Conveyor Supports: Handles dynamic loads in industrial settings.
⚠️ Critical Notes
- Material: Typically Grade 300 steel (yield strength: 300 MPa).
- Tolerances: Flange width ±2mm, depth ±3mm (AS/NZS 3679.1).
- Weight Variation: ±5% due to mill rolling tolerances.
💡 Pro Tip: Pair with 200UB sections for hybrid frames – the 90mm flange aligns perfectly with UB flanges!
🌟 Why Engineers Choose 250×90 PFC
“It’s the Goldilocks channel: deep enough for stiffness, compact enough for tight spaces, and robust under point loads.”
– Site Engineer, Mining Infrastructure Project