SHS 250×250×7.1
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 | 250 mm | 9.8425 in |
| Width | 250 mm | 9.8425 in |
| Thickness, t | 7.1 mm | 0.279528 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 67,000,000 mm⁴ | 160.9681 in⁴ |
| Elastic modulus, Sₓ | 536,000 mm³ | 32.7087 in³ |
| Plastic modulus, Zₓ | 622,000 mm³ | 37.9568 in³ |
| Radius of gyration, rₓ | 99 mm | 3.8976 in |
| Distance to top fibre | 125 mm | 4.9213 in |
| Distance to bottom fibre | 125 mm | 4.9213 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 67,000,000 mm⁴ | 160.9681 in⁴ |
| Elastic modulus, S_y | 536,000 mm³ | 32.7087 in³ |
| Plastic modulus, Z_y | 622,000 mm³ | 37.9568 in³ |
| Radius of gyration, r_y | 99 mm | 3.8976 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 103,000,000 mm⁴ | 247.4585 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 53.7 kg/m | 36.0847 lb/ft |