RHS 300×200×11
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 | 300 mm | 11.811 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 | 128,000,000 mm⁴ | 307.5212 in⁴ |
| Elastic modulus, Sₓ | 855,000 mm³ | 52.1753 in³ |
| Plastic modulus, Zₓ | 1,040,000 mm³ | 63.4647 in³ |
| Radius of gyration, rₓ | 111 mm | 4.3701 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 | 68,000,000 mm⁴ | 163.3707 in⁴ |
| Elastic modulus, S_y | 680,000 mm³ | 41.4961 in³ |
| Plastic modulus, Z_y | 784,000 mm³ | 47.8426 in³ |
| Radius of gyration, r_y | 80.9 mm | 3.185 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 140,000,000 mm⁴ | 336.3513 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 81.5 kg/m | 54.7655 lb/ft |