SHS 120×120×6.3
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 | 120 mm | 4.7244 in |
| Width | 120 mm | 4.7244 in |
| Thickness, t | 6.3 mm | 0.248031 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 6,030,000 mm⁴ | 14.4871 in⁴ |
| Elastic modulus, Sₓ | 100,000 mm³ | 6.1024 in³ |
| Plastic modulus, Zₓ | 120,000 mm³ | 7.3228 in³ |
| Radius of gyration, rₓ | 46.2 mm | 1.8189 in |
| Distance to top fibre | 60 mm | 2.3622 in |
| Distance to bottom fibre | 60 mm | 2.3622 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 6,030,000 mm⁴ | 14.4871 in⁴ |
| Elastic modulus, S_y | 100,000 mm³ | 6.1024 in³ |
| Plastic modulus, Z_y | 120,000 mm³ | 7.3228 in³ |
| Radius of gyration, r_y | 46.2 mm | 1.8189 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 9,500,000 mm⁴ | 22.8238 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 22.2 kg/m | 14.9177 lb/ft |