SHS 300×300×11
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 | 300 mm | 11.811 in |
| Width | 300 mm | 11.811 in |
| Thickness, t | 11 mm | 0.433071 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 174,000,000 mm⁴ | 418.0367 in⁴ |
| Elastic modulus, Sₓ | 1,160,000 mm³ | 70.7875 in³ |
| Plastic modulus, Zₓ | 1,360,000 mm³ | 82.9923 in³ |
| Radius of gyration, rₓ | 118 mm | 4.6457 in |
| Distance to top fibre | 150 mm | 5.9055 in |
| Distance to bottom fibre | 150 mm | 5.9055 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 174,000,000 mm⁴ | 418.0367 in⁴ |
| Elastic modulus, S_y | 1,160,000 mm³ | 70.7875 in³ |
| Plastic modulus, Z_y | 1,360,000 mm³ | 82.9923 in³ |
| Radius of gyration, r_y | 118 mm | 4.6457 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 270,000,000 mm⁴ | 648.6776 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 98.8 kg/m | 66.3905 lb/ft |