RHS 250×150×12.5
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 | 12.5 mm | 0.492126 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 73,900,000 mm⁴ | 177.5455 in⁴ |
| Elastic modulus, Sₓ | 591,000 mm³ | 36.065 in³ |
| Plastic modulus, Zₓ | 740,000 mm³ | 45.1576 in³ |
| Radius of gyration, rₓ | 89.6 mm | 3.5276 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 | 32,600,000 mm⁴ | 78.3218 in⁴ |
| Elastic modulus, S_y | 435,000 mm³ | 26.5453 in³ |
| Plastic modulus, Z_y | 514,000 mm³ | 31.3662 in³ |
| Radius of gyration, r_y | 59.6 mm | 2.3465 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 73,300,000 mm⁴ | 176.104 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 72.3 kg/m | 48.5834 lb/ft |