Steel Beam Sizes / UK / Universal Beams / UB 406×140×39
UB 406×140×39 Steel Beam Dimensions and Properties
UK Universal beams · v2023.11
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
UB 406×140×39 dimensions
Not to scale. Dimensions shown for reference.
Section properties
Symbols match the steel section finder. Imperial and metric values are shown side by side.
| Property | Imperial | Metric |
|---|---|---|
| Weight | 26.21 lb/ft | 39.00 kg/m |
| Depth, d | 15.67 in | 398.00 mm |
| Flange width, bf | 5.58 in | 141.80 mm |
| tw | 0.252 in | 6.400 mm |
| tf | 0.339 in | 8.600 mm |
| Area | 7.70 in² | 4,970.00 mm² |
| Ix | 300.31 in⁴ | 125,000,000 mm⁴ |
| Iy | 9.85 in⁴ | 4,100,000 mm⁴ |
| Sx | 38.38 in³ | 629,000.00 mm³ |
| Sy | 3.54 in³ | 58,000.00 mm³ |
| Zx | 44.18 in³ | 724,000.00 mm³ |
| Zy | 5.54 in³ | 90,800.00 mm³ |
| rx | 6.26 in | 159.00 mm |
| ry | 1.13 in | 28.70 mm |
| J | 0.26 in⁴ | 107,000.00 mm⁴ |
| Cw | 577.20 in⁶ | 155,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus UB 406×140×39.
Lighter in Universal beams
UB 254×146×37
- Weight
- 37.0 kg/m (-5.1%)
- Depth
- 256.0 mm (-36%)
- Ix
- 55,400,000 mm⁴ (-56%)
Heavier in Universal beams
UB 356×127×39
- Weight
- 39.1 kg/m (+0.3%)
- Depth
- 353.4 mm (-11%)
- Ix
- 102,000,000 mm⁴ (-18%)
Closest Iₓ in Universal beams
UB 356×171×45
- Weight
- 45.0 kg/m (+15%)
- Depth
- 351.4 mm (-12%)
- Ix
- 121,000,000 mm⁴ (-3.2%)
Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Methodology