CHS 273×6.3
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 | 6.3 mm | 0.248031 in |
| Outside diameter | 273 mm | 10.748 in |
| Inside diameter | 260.4 mm | 10.252 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 47,000,000 mm⁴ | 112.918 in⁴ |
| Elastic modulus, Sₓ | 344,000 mm³ | 20.9922 in³ |
| Plastic modulus, Zₓ | 448,000 mm³ | 27.3386 in³ |
| Radius of gyration, rₓ | 94.3 mm | 3.7126 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 | 47,000,000 mm⁴ | 112.918 in⁴ |
| Elastic modulus, S_y | 344,000 mm³ | 20.9922 in³ |
| Plastic modulus, Z_y | 448,000 mm³ | 27.3386 in³ |
| Radius of gyration, r_y | 94.3 mm | 3.7126 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 93,900,000 mm⁴ | 225.5957 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 41.4 kg/m | 27.8195 lb/ft |