Steel Beam Sizes / UK / CHS / CHS 323.9×11
CHS 323.9×11 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 323.9×11 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 | 57.05 lb/ft | 84.90 kg/m |
| OD | 12.752 in | 323.900 mm |
| t | 0.433 in | 11.000 mm |
| Area | 16.74 in² | 10,800.00 mm² |
| Ix | 317.13 in⁴ | 132,000,000 mm⁴ |
| Iy | 317.13 in⁴ | 132,000,000 mm⁴ |
| Sx | 49.92 in³ | 818,000.00 mm³ |
| Sy | 49.92 in³ | 818,000.00 mm³ |
| Zx | 65.91 in³ | 1,080,000 mm³ |
| Zy | 65.91 in³ | 1,080,000 mm³ |
| rx | 4.37 in | 111.00 mm |
| ry | 4.37 in | 111.00 mm |
| J | 636.67 in⁴ | 265,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus CHS 323.9×11.
Lighter in Circular hollow sections
CHS 244.5×14.2
- Weight
- 80.6 kg/m (-5.1%)
- Depth
- — mm
- Ix
- 68,400,000 mm⁴ (-48%)
Heavier in Circular hollow sections
CHS 355.6×10
- Weight
- 85.2 kg/m (+0.4%)
- Depth
- — mm
- Ix
- 162,000,000 mm⁴ (+23%)
Closest Iₓ in Circular hollow sections
CHS 355.6×8
- Weight
- 68.6 kg/m (-19%)
- Depth
- — mm
- Ix
- 132,000,000 mm⁴ (0.0%)
Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology