RHS 350×150×8
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 | 8 mm | 0.314961 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 118,000,000 mm⁴ | 283.4961 in⁴ |
| Elastic modulus, Sₓ | 673,000 mm³ | 41.069 in³ |
| Plastic modulus, Zₓ | 844,000 mm³ | 51.504 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 | 31,000,000 mm⁴ | 74.4778 in⁴ |
| Elastic modulus, S_y | 414,000 mm³ | 25.2638 in³ |
| Plastic modulus, Z_y | 464,000 mm³ | 28.315 in³ |
| Radius of gyration, r_y | 63.6 mm | 2.5039 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 79,300,000 mm⁴ | 190.519 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 60.3 kg/m | 40.5197 lb/ft |