RHS 300×200×5
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 | 300 mm | 11.811 in |
| Width | 200 mm | 7.874 in |
| Thickness, t | 5 mm | 0.19685 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 63,200,000 mm⁴ | 151.8386 in⁴ |
| Elastic modulus, Sₓ | 421,000 mm³ | 25.691 in³ |
| Plastic modulus, Zₓ | 501,000 mm³ | 30.5729 in³ |
| Radius of gyration, rₓ | 114 mm | 4.4882 in |
| Distance to top fibre | 150 mm | 5.9055 in |
| Distance to bottom fibre | 150 mm | 5.9055 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 34,000,000 mm⁴ | 81.6853 in⁴ |
| Elastic modulus, S_y | 340,000 mm³ | 20.7481 in³ |
| Plastic modulus, Z_y | 380,000 mm³ | 23.189 in³ |
| Radius of gyration, r_y | 83.5 mm | 3.2874 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 68,200,000 mm⁴ | 163.8512 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 38.3 kg/m | 25.7364 lb/ft |