RHS 350×250×10
Rectangular 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 | 350 mm | 13.7795 in |
| Width | 250 mm | 9.8425 in |
| Thickness, t | 10 mm | 0.393701 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 201,000,000 mm⁴ | 482.9044 in⁴ |
| Elastic modulus, Sₓ | 1,150,000 mm³ | 70.1773 in³ |
| Plastic modulus, Zₓ | 1,380,000 mm³ | 84.2128 in³ |
| Radius of gyration, rₓ | 132 mm | 5.1969 in |
| Distance to top fibre | 175 mm | 6.8898 in |
| Distance to bottom fibre | 175 mm | 6.8898 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 119,000,000 mm⁴ | 285.8986 in⁴ |
| Elastic modulus, S_y | 955,000 mm³ | 58.2777 in³ |
| Plastic modulus, Z_y | 1,090,000 mm³ | 66.5159 in³ |
| Radius of gyration, r_y | 102 mm | 4.0157 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 234,000,000 mm⁴ | 562.1872 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 90.2 kg/m | 60.6116 lb/ft |