Steel Beam Sizes / UK / CHS / CHS 139.7×8
CHS 139.7×8 Steel Beam Dimensions and Properties
UK Circular hollow sections · v2023.11
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
CHS 139.7×8 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 | 17.47 lb/ft | 26.00 kg/m |
| OD | 5.500 in | 139.700 mm |
| t | 0.315 in | 8.000 mm |
| Area | 5.13 in² | 3,310.00 mm² |
| Ix | 17.30 in⁴ | 7,200,000 mm⁴ |
| Iy | 17.30 in⁴ | 7,200,000 mm⁴ |
| Sx | 6.29 in³ | 103,000.00 mm³ |
| Sy | 6.29 in³ | 103,000.00 mm³ |
| Zx | 8.48 in³ | 139,000.00 mm³ |
| Zy | 8.48 in³ | 139,000.00 mm³ |
| rx | 1.83 in | 46.60 mm |
| ry | 1.83 in | 46.60 mm |
| J | 34.60 in⁴ | 14,400,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus CHS 139.7×8.
Lighter in Circular hollow sections
CHS 114.3×10
- Weight
- 25.7 kg/m (-1.2%)
- Depth
- — mm
- Ix
- 4,500,000 mm⁴ (-38%)
Heavier in Circular hollow sections
CHS 219.1×5
- Weight
- 26.4 kg/m (+1.5%)
- Depth
- — mm
- Ix
- 19,300,000 mm⁴ (+168%)
Closest Iₓ in Circular hollow sections
CHS 139.7×7.1
- Weight
- 23.2 kg/m (-11%)
- Depth
- — mm
- Ix
- 6,520,000 mm⁴ (-9.4%)
Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology