Steel Beam Sizes / UK / CHS / CHS 355.6×12.5
CHS 355.6×12.5 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 355.6×12.5 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 | 71.23 lb/ft | 106.00 kg/m |
| OD | 14.000 in | 355.600 mm |
| t | 0.492 in | 12.500 mm |
| Area | 20.93 in² | 13,500.00 mm² |
| Ix | 478.10 in⁴ | 199,000,000 mm⁴ |
| Iy | 478.10 in⁴ | 199,000,000 mm⁴ |
| Sx | 68.35 in³ | 1,120,000 mm³ |
| Sy | 68.35 in³ | 1,120,000 mm³ |
| Zx | 89.70 in³ | 1,470,000 mm³ |
| Zy | 89.70 in³ | 1,470,000 mm³ |
| rx | 4.76 in | 121.00 mm |
| ry | 4.76 in | 121.00 mm |
| J | 953.80 in⁴ | 397,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus CHS 355.6×12.5.
Lighter in Circular hollow sections
CHS 273×16
- Weight
- 101.0 kg/m (-4.7%)
- Depth
- — mm
- Ix
- 107,000,000 mm⁴ (-46%)
Heavier in Circular hollow sections
CHS 406.4×11
- Weight
- 107.0 kg/m (+0.9%)
- Depth
- — mm
- Ix
- 267,000,000 mm⁴ (+34%)
Closest Iₓ in Circular hollow sections
CHS 323.9×16
- Weight
- 121.0 kg/m (+14%)
- Depth
- — mm
- Ix
- 184,000,000 mm⁴ (-7.5%)
Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology