RHS 350×150×5.6
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 | 5.6 mm | 0.220472 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 85,100,000 mm⁴ | 204.4536 in⁴ |
| Elastic modulus, Sₓ | 486,000 mm³ | 29.6575 in³ |
| Plastic modulus, Zₓ | 605,000 mm³ | 36.9194 in³ |
| Radius of gyration, rₓ | 125 mm | 4.9213 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 | 22,700,000 mm⁴ | 54.537 in⁴ |
| Elastic modulus, S_y | 303,000 mm³ | 18.4902 in³ |
| Plastic modulus, Z_y | 334,000 mm³ | 20.3819 in³ |
| Radius of gyration, r_y | 64.7 mm | 2.5472 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 57,300,000 mm⁴ | 137.6638 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 42.7 kg/m | 28.6931 lb/ft |