SHS 180×180×11
Square 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 |
|---|---|---|
| Height | 180 mm | 7.0866 in |
| Width | 180 mm | 7.0866 in |
| Thickness, t | 11 mm | 0.433071 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 34,400,000 mm⁴ | 82.6463 in⁴ |
| Elastic modulus, Sₓ | 382,000 mm³ | 23.3111 in³ |
| Plastic modulus, Zₓ | 460,000 mm³ | 28.0709 in³ |
| Radius of gyration, rₓ | 68.6 mm | 2.7008 in |
| Distance to top fibre | 90 mm | 3.5433 in |
| Distance to bottom fibre | 90 mm | 3.5433 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 34,400,000 mm⁴ | 82.6463 in⁴ |
| Elastic modulus, S_y | 382,000 mm³ | 23.3111 in³ |
| Plastic modulus, Z_y | 460,000 mm³ | 28.0709 in³ |
| Radius of gyration, r_y | 68.6 mm | 2.7008 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 54,700,000 mm⁴ | 131.4173 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 57.4 kg/m | 38.571 lb/ft |