CHS 273×10
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 | 10 mm | 0.393701 in |
| Outside diameter | 273 mm | 10.748 in |
| Inside diameter | 253 mm | 9.9606 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 71,500,000 mm⁴ | 171.7794 in⁴ |
| Elastic modulus, Sₓ | 524,000 mm³ | 31.9764 in³ |
| Plastic modulus, Zₓ | 692,000 mm³ | 42.2284 in³ |
| Radius of gyration, rₓ | 93.1 mm | 3.6654 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 | 71,500,000 mm⁴ | 171.7794 in⁴ |
| Elastic modulus, S_y | 524,000 mm³ | 31.9764 in³ |
| Plastic modulus, Z_y | 692,000 mm³ | 42.2284 in³ |
| Radius of gyration, r_y | 93.1 mm | 3.6654 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 143,000,000 mm⁴ | 343.5589 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 64.9 kg/m | 43.6108 lb/ft |