RHS 350×200×6.3
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 | 6.3 mm | 0.248031 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 113,000,000 mm⁴ | 271.4836 in⁴ |
| Elastic modulus, Sₓ | 648,000 mm³ | 39.5434 in³ |
| Plastic modulus, Zₓ | 784,000 mm³ | 47.8426 in³ |
| Radius of gyration, rₓ | 130 mm | 5.1181 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 | 47,800,000 mm⁴ | 114.84 in⁴ |
| Elastic modulus, S_y | 478,000 mm³ | 29.1694 in³ |
| Plastic modulus, Z_y | 533,000 mm³ | 32.5257 in³ |
| Radius of gyration, r_y | 84.3 mm | 3.3189 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 105,000,000 mm⁴ | 252.2635 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 52.8 kg/m | 35.48 lb/ft |