SHS 70×70×5
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 | 70 mm | 2.7559 in |
| Width | 70 mm | 2.7559 in |
| Thickness, t | 5 mm | 0.19685 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 885,000 mm⁴ | 2.1262 in⁴ |
| Elastic modulus, Sₓ | 25,300 mm³ | 1.5439 in³ |
| Plastic modulus, Zₓ | 30,800 mm³ | 1.8795 in³ |
| Radius of gyration, rₓ | 26.4 mm | 1.0394 in |
| Distance to top fibre | 35 mm | 1.378 in |
| Distance to bottom fibre | 35 mm | 1.378 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 885,000 mm⁴ | 2.1262 in⁴ |
| Elastic modulus, S_y | 25,300 mm³ | 1.5439 in³ |
| Plastic modulus, Z_y | 30,800 mm³ | 1.8795 in³ |
| Radius of gyration, r_y | 26.4 mm | 1.0394 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 1,420,000 mm⁴ | 3.4116 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 9.99 kg/m | 6.713 lb/ft |