RHS 80×40×5.6
Rectangular hollow sections from British-Sections-1 and Eurocode 3 UK shared angle/hollow tables.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Height | 80 mm | 3.1496 in |
| Width | 40 mm | 1.5748 in |
| Thickness, t | 5.6 mm | 0.220472 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 867,000 mm⁴ | 2.083 in⁴ |
| Elastic modulus, Sₓ | 21,700 mm³ | 1.3242 in³ |
| Plastic modulus, Zₓ | 28,500 mm³ | 1.7392 in³ |
| Radius of gyration, rₓ | 27 mm | 1.063 in |
| Distance to top fibre | 40 mm | 1.5748 in |
| Distance to bottom fibre | 40 mm | 1.5748 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 274,000 mm⁴ | 0.658288 in⁴ |
| Elastic modulus, S_y | 13,700 mm³ | 0.836025 in³ |
| Plastic modulus, Z_y | 17,000 mm³ | 1.0374 in³ |
| Radius of gyration, r_y | 15.2 mm | 0.598425 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 702,000 mm⁴ | 1.6866 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 9.3 kg/m | 6.2493 lb/ft |