RHS 350×200×7.1
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 | 200 mm | 7.874 in |
| Thickness, t | 7.1 mm | 0.279528 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 127,000,000 mm⁴ | 305.1187 in⁴ |
| Elastic modulus, Sₓ | 723,000 mm³ | 44.1202 in³ |
| Plastic modulus, Zₓ | 878,000 mm³ | 53.5788 in³ |
| Radius of gyration, rₓ | 129 mm | 5.0787 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 | 53,300,000 mm⁴ | 128.0538 in⁴ |
| Elastic modulus, S_y | 533,000 mm³ | 32.5257 in³ |
| Plastic modulus, Z_y | 596,000 mm³ | 36.3702 in³ |
| Radius of gyration, r_y | 84 mm | 3.3071 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 118,000,000 mm⁴ | 283.4961 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 59.3 kg/m | 39.8478 lb/ft |