RHS 250×150×7.1
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 | 7.1 mm | 0.279528 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 46,100,000 mm⁴ | 110.7557 in⁴ |
| Elastic modulus, Sₓ | 368,000 mm³ | 22.4567 in³ |
| Plastic modulus, Zₓ | 449,000 mm³ | 27.3997 in³ |
| Radius of gyration, rₓ | 92.2 mm | 3.6299 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 | 20,800,000 mm⁴ | 49.9722 in⁴ |
| Elastic modulus, S_y | 277,000 mm³ | 16.9036 in³ |
| Plastic modulus, Z_y | 315,000 mm³ | 19.2225 in³ |
| Radius of gyration, r_y | 61.9 mm | 2.437 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 45,200,000 mm⁴ | 108.5934 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 42.6 kg/m | 28.6259 lb/ft |