RHS 80×40×3.6
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 | 3.6 mm | 0.141732 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 628,000 mm⁴ | 1.5088 in⁴ |
| Elastic modulus, Sₓ | 15,700 mm³ | 0.958073 in³ |
| Plastic modulus, Zₓ | 20,000 mm³ | 1.2205 in³ |
| Radius of gyration, rₓ | 28.1 mm | 1.1063 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 | 206,000 mm⁴ | 0.494917 in⁴ |
| Elastic modulus, S_y | 10,300 mm³ | 0.628545 in³ |
| Plastic modulus, Z_y | 12,100 mm³ | 0.738387 in³ |
| Radius of gyration, r_y | 16.1 mm | 0.633858 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 508,000 mm⁴ | 1.2205 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 6.27 kg/m | 4.2132 lb/ft |