RHS 400×200×11
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 | 400 mm | 15.748 in |
| Width | 200 mm | 7.874 in |
| Thickness, t | 11 mm | 0.433071 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 260,000,000 mm⁴ | 624.6525 in⁴ |
| Elastic modulus, Sₓ | 1,300,000 mm³ | 79.3309 in³ |
| Plastic modulus, Zₓ | 1,620,000 mm³ | 98.8585 in³ |
| Radius of gyration, rₓ | 144 mm | 5.6693 in |
| Distance to top fibre | 200 mm | 7.874 in |
| Distance to bottom fibre | 200 mm | 7.874 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 87,600,000 mm⁴ | 210.4598 in⁴ |
| Elastic modulus, S_y | 876,000 mm³ | 53.4568 in³ |
| Plastic modulus, Z_y | 992,000 mm³ | 60.5356 in³ |
| Radius of gyration, r_y | 83.4 mm | 3.2835 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 210,000,000 mm⁴ | 504.527 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 98.8 kg/m | 66.3905 lb/ft |