RHS 350×200×16
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 | 16 mm | 0.629921 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 255,000,000 mm⁴ | 612.64 in⁴ |
| Elastic modulus, Sₓ | 1,460,000 mm³ | 89.0947 in³ |
| Plastic modulus, Zₓ | 1,830,000 mm³ | 111.6735 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 | 105,000,000 mm⁴ | 252.2635 in⁴ |
| Elastic modulus, S_y | 1,050,000 mm³ | 64.0749 in³ |
| Plastic modulus, Z_y | 1,230,000 mm³ | 75.0592 in³ |
| Radius of gyration, r_y | 80.1 mm | 3.1535 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 240,000,000 mm⁴ | 576.6023 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 128 kg/m | 86.012 lb/ft |