SHS 80×80×8
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 | 8 mm | 0.314961 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 1,890,000 mm⁴ | 4.5407 in⁴ |
| Elastic modulus, Sₓ | 47,300 mm³ | 2.8864 in³ |
| Plastic modulus, Zₓ | 59,500 mm³ | 3.6309 in³ |
| Radius of gyration, rₓ | 29.1 mm | 1.1457 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 | 1,890,000 mm⁴ | 4.5407 in⁴ |
| Elastic modulus, S_y | 47,300 mm³ | 2.8864 in³ |
| Plastic modulus, Z_y | 59,500 mm³ | 3.6309 in³ |
| Radius of gyration, r_y | 29.1 mm | 1.1457 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 3,120,000 mm⁴ | 7.4958 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 17.5 kg/m | 11.7595 lb/ft |