CHS 273×5
Circular hollow sections from Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness, t | 5 mm | 0.19685 in |
| Outside diameter | 273 mm | 10.748 in |
| Inside diameter | 263 mm | 10.3543 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 37,800,000 mm⁴ | 90.8149 in⁴ |
| Elastic modulus, Sₓ | 277,000 mm³ | 16.9036 in³ |
| Plastic modulus, Zₓ | 359,000 mm³ | 21.9075 in³ |
| Radius of gyration, rₓ | 94.8 mm | 3.7323 in |
| Distance to top fibre | 136.5 mm | 5.374 in |
| Distance to bottom fibre | 136.5 mm | 5.374 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 37,800,000 mm⁴ | 90.8149 in⁴ |
| Elastic modulus, S_y | 277,000 mm³ | 16.9036 in³ |
| Plastic modulus, Z_y | 359,000 mm³ | 21.9075 in³ |
| Radius of gyration, r_y | 94.8 mm | 3.7323 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 75,600,000 mm⁴ | 181.6297 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 33 kg/m | 22.175 lb/ft |