RHS 250×150×8.8
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 | 250 mm | 9.8425 in |
| Width | 150 mm | 5.9055 in |
| Thickness, t | 8.8 mm | 0.346457 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 55,500,000 mm⁴ | 133.3393 in⁴ |
| Elastic modulus, Sₓ | 444,000 mm³ | 27.0945 in³ |
| Plastic modulus, Zₓ | 545,000 mm³ | 33.2579 in³ |
| Radius of gyration, rₓ | 91.3 mm | 3.5945 in |
| Distance to top fibre | 125 mm | 4.9213 in |
| Distance to bottom fibre | 125 mm | 4.9213 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 24,900,000 mm⁴ | 59.8225 in⁴ |
| Elastic modulus, S_y | 331,000 mm³ | 20.1989 in³ |
| Plastic modulus, Z_y | 381,000 mm³ | 23.25 in³ |
| Radius of gyration, r_y | 61.2 mm | 2.4094 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 54,600,000 mm⁴ | 131.177 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 52.2 kg/m | 35.0768 lb/ft |