RHS 220×120×8.8
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 | 8.8 mm | 0.346457 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 34,700,000 mm⁴ | 83.3671 in⁴ |
| Elastic modulus, Sₓ | 315,000 mm³ | 19.2225 in³ |
| Plastic modulus, Zₓ | 394,000 mm³ | 24.0434 in³ |
| Radius of gyration, rₓ | 78.7 mm | 3.0984 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 | 13,200,000 mm⁴ | 31.7131 in⁴ |
| Elastic modulus, S_y | 221,000 mm³ | 13.4862 in³ |
| Plastic modulus, Z_y | 256,000 mm³ | 15.6221 in³ |
| Radius of gyration, r_y | 48.7 mm | 1.9173 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 30,900,000 mm⁴ | 74.2375 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 43.9 kg/m | 29.4994 lb/ft |