RHS 300×250×10
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 | 250 mm | 9.8425 in |
| Thickness, t | 10 mm | 0.393701 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 139,000,000 mm⁴ | 333.9488 in⁴ |
| Elastic modulus, Sₓ | 928,000 mm³ | 56.63 in³ |
| Plastic modulus, Zₓ | 1,100,000 mm³ | 67.1261 in³ |
| Radius of gyration, rₓ | 115 mm | 4.5276 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 | 105,000,000 mm⁴ | 252.2635 in⁴ |
| Elastic modulus, S_y | 840,000 mm³ | 51.2599 in³ |
| Plastic modulus, Z_y | 971,000 mm³ | 59.2541 in³ |
| Radius of gyration, r_y | 100 mm | 3.937 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 186,000,000 mm⁴ | 446.8668 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 82.4 kg/m | 55.3702 lb/ft |