Steel Beam Sizes / Europe / CHS / CHS 457×12.5
CHS 457×12.5 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 457×12.5 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 | 92.06 lb/ft | 137.00 kg/m |
| OD | 17.992 in | 457.000 mm |
| t | 0.492 in | 12.500 mm |
| Area | 27.13 in² | 17,500.00 mm² |
| Ix | 1,035.48 in⁴ | 431,000,000 mm⁴ |
| Iy | 1,035.48 in⁴ | 431,000,000 mm⁴ |
| Sx | 115.33 in³ | 1,890,000 mm³ |
| Sy | 115.33 in³ | 1,890,000 mm³ |
| Zx | 150.73 in³ | 2,470,000 mm³ |
| Zy | 150.73 in³ | 2,470,000 mm³ |
| rx | 6.18 in | 157.00 mm |
| ry | 6.18 in | 157.00 mm |
| J | 2,073.37 in⁴ | 863,000,000 mm⁴ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus CHS 457×12.5.
Lighter in Circular hollow sections
CHS 508×11
- Weight
- 135.0 kg/m (-1.5%)
- Depth
- — mm
- Ix
- 531,000,000 mm⁴ (+23%)
Heavier in Circular hollow sections
CHS 508×12.5
- Weight
- 153.0 kg/m (+12%)
- Depth
- — mm
- Ix
- 598,000,000 mm⁴ (+39%)
Closest Iₓ in Circular hollow sections
CHS 457×11
- Weight
- 121.0 kg/m (-12%)
- Depth
- — mm
- Ix
- 383,000,000 mm⁴ (-11%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology