SHS 120×120×7.1
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 | 7.1 mm | 0.279528 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 6,630,000 mm⁴ | 15.9286 in⁴ |
| Elastic modulus, Sₓ | 110,000 mm³ | 6.7126 in³ |
| Plastic modulus, Zₓ | 133,000 mm³ | 8.1162 in³ |
| Radius of gyration, rₓ | 45.9 mm | 1.8071 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 | 6,630,000 mm⁴ | 15.9286 in⁴ |
| Elastic modulus, S_y | 110,000 mm³ | 6.7126 in³ |
| Plastic modulus, Z_y | 133,000 mm³ | 8.1162 in³ |
| Radius of gyration, r_y | 45.9 mm | 1.8071 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 10,500,000 mm⁴ | 25.2264 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 24.7 kg/m | 16.5976 lb/ft |