CHS 244.5×12.5
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 | 12.5 mm | 0.492126 in |
| Outside diameter | 244.5 mm | 9.626 in |
| Inside diameter | 219.5 mm | 8.6417 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 61,500,000 mm⁴ | 147.7543 in⁴ |
| Elastic modulus, Sₓ | 503,000 mm³ | 30.6949 in³ |
| Plastic modulus, Zₓ | 673,000 mm³ | 41.069 in³ |
| Radius of gyration, rₓ | 82.1 mm | 3.2323 in |
| Distance to top fibre | 122.25 mm | 4.813 in |
| Distance to bottom fibre | 122.25 mm | 4.813 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 61,500,000 mm⁴ | 147.7543 in⁴ |
| Elastic modulus, S_y | 503,000 mm³ | 30.6949 in³ |
| Plastic modulus, Z_y | 673,000 mm³ | 41.069 in³ |
| Radius of gyration, r_y | 82.1 mm | 3.2323 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 123,000,000 mm⁴ | 295.5087 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 71.5 kg/m | 48.0458 lb/ft |