Steel Beam Sizes / Europe / CHS / CHS 406.4×11
CHS 406.4×11 Steel Beam Dimensions and Properties
EN Circular hollow sections · v2026.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
CHS 406.4×11 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 | 71.90 lb/ft | 107.00 kg/m |
| OD | 16.000 in | 406.400 mm |
| t | 0.433 in | 11.000 mm |
| Area | 21.24 in² | 13,700.00 mm² |
| Ix | 641.47 in⁴ | 267,000,000 mm⁴ |
| Iy | 641.47 in⁴ | 267,000,000 mm⁴ |
| Sx | 80.55 in³ | 1,320,000 mm³ |
| Sy | 80.55 in³ | 1,320,000 mm³ |
| Zx | 104.96 in³ | 1,720,000 mm³ |
| Zy | 104.96 in³ | 1,720,000 mm³ |
| rx | 5.51 in | 140.00 mm |
| ry | 5.51 in | 140.00 mm |
| J | 1,282.94 in⁴ | 534,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus CHS 406.4×11.
Lighter in Circular hollow sections
CHS 355.6×12.5
- Weight
- 106.0 kg/m (-0.9%)
- Depth
- — mm
- Ix
- 199,000,000 mm⁴ (-25%)
Heavier in Circular hollow sections
CHS 323.9×14.2
- Weight
- 108.0 kg/m (+0.9%)
- Depth
- — mm
- Ix
- 166,000,000 mm⁴ (-38%)
Closest Iₓ in Circular hollow sections
CHS 355.6×16
- Weight
- 134.0 kg/m (+25%)
- Depth
- — mm
- Ix
- 247,000,000 mm⁴ (-7.5%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology