RHS 250×100×11
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 | 100 mm | 3.937 in |
| Thickness, t | 11 mm | 0.433071 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 51,000,000 mm⁴ | 122.528 in⁴ |
| Elastic modulus, Sₓ | 408,000 mm³ | 24.8977 in³ |
| Plastic modulus, Zₓ | 532,000 mm³ | 32.4646 in³ |
| Radius of gyration, rₓ | 84.9 mm | 3.3425 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 | 11,400,000 mm⁴ | 27.3886 in⁴ |
| Elastic modulus, S_y | 229,000 mm³ | 13.9744 in³ |
| Plastic modulus, Z_y | 271,000 mm³ | 16.5374 in³ |
| Radius of gyration, r_y | 40.2 mm | 1.5827 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 31,300,000 mm⁴ | 75.1986 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 55.6 kg/m | 37.3615 lb/ft |