CHS 355.6×16
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 | 16 mm | 0.629921 in |
| Outside diameter | 355.6 mm | 14 in |
| Inside diameter | 323.6 mm | 12.7402 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 247,000,000 mm⁴ | 593.4199 in⁴ |
| Elastic modulus, Sₓ | 1,390,000 mm³ | 84.823 in³ |
| Plastic modulus, Zₓ | 1,850,000 mm³ | 112.8939 in³ |
| Radius of gyration, rₓ | 120 mm | 4.7244 in |
| Distance to top fibre | 177.8 mm | 7 in |
| Distance to bottom fibre | 177.8 mm | 7 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 247,000,000 mm⁴ | 593.4199 in⁴ |
| Elastic modulus, S_y | 1,390,000 mm³ | 84.823 in³ |
| Plastic modulus, Z_y | 1,850,000 mm³ | 112.8939 in³ |
| Radius of gyration, r_y | 120 mm | 4.7244 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 493,000,000 mm⁴ | 1,184.437 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 134 kg/m | 90.0438 lb/ft |