RHS 160×80×5.6
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 | 160 mm | 6.2992 in |
| Width | 80 mm | 3.1496 in |
| Thickness, t | 5.6 mm | 0.220472 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 8,190,000 mm⁴ | 19.6766 in⁴ |
| Elastic modulus, Sₓ | 102,000 mm³ | 6.2244 in³ |
| Plastic modulus, Zₓ | 128,000 mm³ | 7.811 in³ |
| Radius of gyration, rₓ | 56.9 mm | 2.2402 in |
| Distance to top fibre | 80 mm | 3.1496 in |
| Distance to bottom fibre | 80 mm | 3.1496 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 2,730,000 mm⁴ | 6.5589 in⁴ |
| Elastic modulus, S_y | 68,200 mm³ | 4.1618 in³ |
| Plastic modulus, Z_y | 78,500 mm³ | 4.7904 in³ |
| Radius of gyration, r_y | 32.9 mm | 1.2953 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 6,610,000 mm⁴ | 15.8806 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 19.9 kg/m | 13.3722 lb/ft |