SHS 80×80×5.6
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 | 80 mm | 3.1496 in |
| Width | 80 mm | 3.1496 in |
| Thickness, t | 5.6 mm | 0.220472 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 1,490,000 mm⁴ | 3.5797 in⁴ |
| Elastic modulus, Sₓ | 37,200 mm³ | 2.2701 in³ |
| Plastic modulus, Zₓ | 45,200 mm³ | 2.7583 in³ |
| Radius of gyration, rₓ | 30.2 mm | 1.189 in |
| Distance to top fibre | 40 mm | 1.5748 in |
| Distance to bottom fibre | 40 mm | 1.5748 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 1,490,000 mm⁴ | 3.5797 in⁴ |
| Elastic modulus, S_y | 37,200 mm³ | 2.2701 in³ |
| Plastic modulus, Z_y | 45,200 mm³ | 2.7583 in³ |
| Radius of gyration, r_y | 30.2 mm | 1.189 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 2,380,000 mm⁴ | 5.718 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 12.8 kg/m | 8.6012 lb/ft |