RHS 220×120×16
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 | 220 mm | 8.6614 in |
| Width | 120 mm | 4.7244 in |
| Thickness, t | 16 mm | 0.629921 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 54,100,000 mm⁴ | 129.9758 in⁴ |
| Elastic modulus, Sₓ | 492,000 mm³ | 30.0237 in³ |
| Plastic modulus, Zₓ | 643,000 mm³ | 39.2383 in³ |
| Radius of gyration, rₓ | 75.2 mm | 2.9606 in |
| Distance to top fibre | 110 mm | 4.3307 in |
| Distance to bottom fibre | 110 mm | 4.3307 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 19,900,000 mm⁴ | 47.8099 in⁴ |
| Elastic modulus, S_y | 331,000 mm³ | 20.1989 in³ |
| Plastic modulus, Z_y | 410,000 mm³ | 25.0197 in³ |
| Radius of gyration, r_y | 45.5 mm | 1.7913 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 48,700,000 mm⁴ | 117.0022 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 75.2 kg/m | 50.5321 lb/ft |