📏 Core Dimensions & Tolerances
| Parameter | Value |
|---|---|
| Beam Height (h) | 403 mm |
| Flange Width (w) | 178 mm |
| Flange Thickness (t) | 10.9 mm |
| Web Thickness (b) | 7.8 mm |
| Root Radius (r) | 10.2 mm |
| Weight | 53.7 kg/m |
🔧 410 UB 53.7: Your Go-To Universal Beam for Mid-Span Strength
Ideal for floors, roofs, and frames where strength-to-weight ratio matters.
| Parameter | Value | Tolerance |
|---|---|---|
| Depth (D) | 403 mm | ±3 mm |
| Flange Width (B) | 178 mm | ±3 mm |
| Flange Thickness (T) | 10.9 mm | ±0.8 mm |
| Web Thickness (t) | 7.8 mm | ±0.5 mm |
| Root Radius (r) | 10.2 mm | ±1.5 mm |
| Weight | 53.7 kg/m | ±5% |
⚙️ Critical Engineering Properties
- Area (A): 6,840 mm²
- Moment of Inertia (Ixx): 186 × 10⁶ mm⁴ (bending strength)
- Moment of Inertia (Iyy): 9.5 × 10⁶ mm⁴
- Plastic Modulus (Sxx): 1,060 × 10³ mm³
- Elastic Modulus (Zxx): 920 × 10³ mm³
🏗️ Top Applications
- Floor Joists: Spans up to 8m in commercial buildings.
- Roof Purlins: Supports cladding in warehouses.
- Portal Frames: Light-industrial sheds & garages.
- Bridge Girders: Short-span pedestrian crossings.
💡 Tip: Its 7.8 mm web handles shear well – ideal for point loads!
⚠️ Key Design Checks
- Deflection Limits: Max L/360 for floors (e.g., 22mm for 8m span).
- Web Buckling: Add stiffeners if concentrated loads > 150 kN.
- Connection Safety: Bolt through flanges, not the thin web!
🛒 Procurement Tips
- Standard Lengths: 9m, 12m, 15m.
- Camber: Order pre-cambered if span > 6m.
- Finish: Galvanize for outdoor use; prime/paint for interiors.
🔄 Alternative Sizes
- Lighter: 410 UB 46.2 (46.2 kg/m)
- Heavier: 410 UB 59.7 (59.7 kg/m)
✅ Why Choose 410 UB 53.7?
✅ Cost-Effective: Less steel = lower material cost.
✅ Versatile: Fits most mid-span structural needs.
✅ Accessible: Widely stocked across Australia.
✨ Pro Advice: Always verify actual site dimensions – a 3mm depth variance changes load capacity!
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