SHS 40×40×6.3
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 | 40 mm | 1.5748 in |
| Width | 40 mm | 1.5748 in |
| Thickness, t | 6.3 mm | 0.248031 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 147,000 mm⁴ | 0.353169 in⁴ |
| Elastic modulus, Sₓ | 7,340 mm³ | 0.447914 in³ |
| Plastic modulus, Zₓ | 9,900 mm³ | 0.604135 in³ |
| Radius of gyration, rₓ | 13.5 mm | 0.531496 in |
| Distance to top fibre | 20 mm | 0.7874015 in |
| Distance to bottom fibre | 20 mm | 0.7874015 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 147,000 mm⁴ | 0.353169 in⁴ |
| Elastic modulus, S_y | 7,340 mm³ | 0.447914 in³ |
| Plastic modulus, Z_y | 9,900 mm³ | 0.604135 in³ |
| Radius of gyration, r_y | 13.5 mm | 0.531496 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 254,000 mm⁴ | 0.610237 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 6.33 kg/m | 4.2536 lb/ft |