RHS 80×40×3.2
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 | 3.2 mm | 0.125984 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 572,000 mm⁴ | 1.3742 in⁴ |
| Elastic modulus, Sₓ | 14,300 mm³ | 0.87264 in³ |
| Plastic modulus, Zₓ | 18,000 mm³ | 1.0984 in³ |
| Radius of gyration, rₓ | 28.3 mm | 1.1142 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 | 189,000 mm⁴ | 0.454074 in⁴ |
| Elastic modulus, S_y | 9,460 mm³ | 0.577285 in³ |
| Plastic modulus, Z_y | 11,000 mm³ | 0.671261 in³ |
| Radius of gyration, r_y | 16.3 mm | 0.641732 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 462,000 mm⁴ | 1.11 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 5.62 kg/m | 3.7765 lb/ft |