RHS 350×150×7.1
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 | 150 mm | 5.9055 in |
| Thickness, t | 7.1 mm | 0.279528 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 106,000,000 mm⁴ | 254.666 in⁴ |
| Elastic modulus, Sₓ | 604,000 mm³ | 36.8583 in³ |
| Plastic modulus, Zₓ | 756,000 mm³ | 46.134 in³ |
| Radius of gyration, rₓ | 124 mm | 4.8819 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 | 28,000,000 mm⁴ | 67.2703 in⁴ |
| Elastic modulus, S_y | 374,000 mm³ | 22.8229 in³ |
| Plastic modulus, Z_y | 416,000 mm³ | 25.3859 in³ |
| Radius of gyration, r_y | 64 mm | 2.5197 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 71,200,000 mm⁴ | 171.0587 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 53.7 kg/m | 36.0847 lb/ft |