RHS 120×80×10
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 | 120 mm | 4.7244 in |
| Width | 80 mm | 3.1496 in |
| Thickness, t | 10 mm | 0.393701 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 6,090,000 mm⁴ | 14.6313 in⁴ |
| Elastic modulus, Sₓ | 102,000 mm³ | 6.2244 in³ |
| Plastic modulus, Zₓ | 131,000 mm³ | 7.9941 in³ |
| Radius of gyration, rₓ | 41.8 mm | 1.6457 in |
| Distance to top fibre | 60 mm | 2.3622 in |
| Distance to bottom fibre | 60 mm | 2.3622 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 3,130,000 mm⁴ | 7.5199 in⁴ |
| Elastic modulus, S_y | 78,100 mm³ | 4.766 in³ |
| Plastic modulus, Z_y | 97,300 mm³ | 5.9376 in³ |
| Radius of gyration, r_y | 29.9 mm | 1.1772 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 6,880,000 mm⁴ | 16.5293 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 27.4 kg/m | 18.412 lb/ft |