SHS 80×80×6.3
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 | 6.3 mm | 0.248031 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 1,620,000 mm⁴ | 3.8921 in⁴ |
| Elastic modulus, Sₓ | 40,500 mm³ | 2.4715 in³ |
| Plastic modulus, Zₓ | 49,700 mm³ | 3.0329 in³ |
| Radius of gyration, rₓ | 29.9 mm | 1.1772 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 | 1,620,000 mm⁴ | 3.8921 in⁴ |
| Elastic modulus, S_y | 40,500 mm³ | 2.4715 in³ |
| Plastic modulus, Z_y | 49,700 mm³ | 3.0329 in³ |
| Radius of gyration, r_y | 29.9 mm | 1.1772 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 2,620,000 mm⁴ | 6.2946 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 14.2 kg/m | 9.542 lb/ft |