SHS 80×80×5
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 mm | 0.19685 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 1,370,000 mm⁴ | 3.2914 in⁴ |
| Elastic modulus, Sₓ | 34,200 mm³ | 2.087 in³ |
| Plastic modulus, Zₓ | 41,100 mm³ | 2.5081 in³ |
| Radius of gyration, rₓ | 30.5 mm | 1.2008 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 | 1,370,000 mm⁴ | 3.2914 in⁴ |
| Elastic modulus, S_y | 34,200 mm³ | 2.087 in³ |
| Plastic modulus, Z_y | 41,100 mm³ | 2.5081 in³ |
| Radius of gyration, r_y | 30.5 mm | 1.2008 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 2,170,000 mm⁴ | 5.2134 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 11.6 kg/m | 7.7948 lb/ft |