RHS 250×150×8
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 mm | 0.314961 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 51,100,000 mm⁴ | 122.7682 in⁴ |
| Elastic modulus, Sₓ | 409,000 mm³ | 24.9587 in³ |
| Plastic modulus, Zₓ | 501,000 mm³ | 30.5729 in³ |
| Radius of gyration, rₓ | 91.7 mm | 3.6102 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 | 23,000,000 mm⁴ | 55.2577 in⁴ |
| Elastic modulus, S_y | 306,000 mm³ | 18.6733 in³ |
| Plastic modulus, Z_y | 350,000 mm³ | 21.3583 in³ |
| Radius of gyration, r_y | 61.5 mm | 2.4213 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 50,200,000 mm⁴ | 120.606 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 47.7 kg/m | 32.0529 lb/ft |