RHS 50×30×5.6
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 | 50 mm | 1.9685 in |
| Width | 30 mm | 1.1811 in |
| Thickness, t | 5.6 mm | 0.220472 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 197,000 mm⁴ | 0.473294 in⁴ |
| Elastic modulus, Sₓ | 7,890 mm³ | 0.481477 in³ |
| Plastic modulus, Zₓ | 10,800 mm³ | 0.659056 in³ |
| Radius of gyration, rₓ | 16.4 mm | 0.645669 in |
| Distance to top fibre | 25 mm | 0.984252 in |
| Distance to bottom fibre | 25 mm | 0.984252 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 82,300 mm⁴ | 0.197727 in⁴ |
| Elastic modulus, S_y | 5,480 mm³ | 0.33441 in³ |
| Plastic modulus, Z_y | 7,250 mm³ | 0.442422 in³ |
| Radius of gyration, r_y | 10.6 mm | 0.417323 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 201,000 mm⁴ | 0.482904 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 5.78 kg/m | 3.884 lb/ft |