Steel Beam Sizes / Europe / CHS / CHS 323.9×7.1
CHS 323.9×7.1 Dimensions, Weight and Section Properties
EN Circular hollow sections · v2026.1
CHS 323.9×7.1: 55.5 kg/m weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
CHS 323.9×7.1 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 | 37.29 lb/ft | 55.50 kg/m |
| OD | 12.752 in | 323.900 mm |
| t | 0.280 in | 7.100 mm |
| Area | 10.96 in² | 7,070.00 mm² |
| Ix | 213.10 in⁴ | 88,700,000 mm⁴ |
| Iy | 213.10 in⁴ | 88,700,000 mm⁴ |
| Sx | 33.44 in³ | 548,000.00 mm³ |
| Sy | 33.44 in³ | 548,000.00 mm³ |
| Zx | 43.51 in³ | 713,000.00 mm³ |
| Zy | 43.51 in³ | 713,000.00 mm³ |
| rx | 4.41 in | 112.00 mm |
| ry | 4.41 in | 112.00 mm |
| J | 425.24 in⁴ | 177,000,000 mm⁴ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus CHS 323.9×7.1.
Lighter in Circular hollow sections
CHS 355.6×6.3
- Weight
- 54.3 kg/m (-2.2%)
- Depth
- — mm
- Ix
- 105,000,000 mm⁴ (+18%)
Heavier in Circular hollow sections
CHS 193.7×12.5
- Weight
- 55.9 kg/m (+0.7%)
- Depth
- — mm
- Ix
- 29,300,000 mm⁴ (-67%)
Another Iₓ option in Circular hollow sections
CHS 273×12.5
- Weight
- 80.3 kg/m (+45%)
- Depth
- — mm
- Ix
- 87,000,000 mm⁴ (-1.9%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology