Steel Beam Sizes / Europe / CHS / CHS 21.3×2.9
CHS 21.3×2.9 Dimensions, Weight and Section Properties
EN Circular hollow sections · v2026.1
CHS 21.3×2.9: 1.32 kg/m weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
CHS 21.3×2.9 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 | 0.89 lb/ft | 1.32 kg/m |
| OD | 0.839 in | 21.300 mm |
| t | 0.114 in | 2.900 mm |
| Area | 0.26 in² | 168.00 mm² |
| Ix | 0.02 in⁴ | 7,270.00 mm⁴ |
| Iy | 0.02 in⁴ | 7,270.00 mm⁴ |
| Sx | 0.04 in³ | 683.00 mm³ |
| Sy | 0.04 in³ | 683.00 mm³ |
| Zx | 0.06 in³ | 990.00 mm³ |
| Zy | 0.06 in³ | 990.00 mm³ |
| rx | 0.26 in | 6.59 mm |
| ry | 0.26 in | 6.59 mm |
| J | 0.03 in⁴ | 14,500.00 mm⁴ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus CHS 21.3×2.9.
Lighter in Circular hollow sections
CHS 21.3×2.6
- Weight
- 1.2 kg/m (-9.1%)
- Depth
- — mm
- Ix
- 6,810 mm⁴ (-6.3%)
Heavier in Circular hollow sections
CHS 21.3×3.2
- Weight
- 1.4 kg/m (+8.3%)
- Depth
- — mm
- Ix
- 7,680 mm⁴ (+5.6%)
Another Iₓ option in Circular hollow sections
CHS 26.9×2.6
- Weight
- 1.6 kg/m (+18%)
- Depth
- — mm
- Ix
- 14,800 mm⁴ (+104%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Hot-finished hollow sections · Methodology