L 250×250×18
Angles 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 |
|---|---|---|
| Depth, d | 250 mm | 9.8425 in |
| Width | 250 mm | 9.8425 in |
| Thickness, t | 18 mm | 0.708661 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 51,600,000 mm⁴ | 123.9695 in⁴ |
| Elastic modulus, Sₓ | 284,000 mm³ | 17.3307 in³ |
| Radius of gyration, rₓ | 77.1 mm | 3.0354 in |
| Distance to top fibre | 181.6901 mm | 7.1532 in |
| Distance to bottom fibre | 68.3099 mm | 2.6894 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 51,600,000 mm⁴ | 123.9695 in⁴ |
| Elastic modulus, S_y | 284,000 mm³ | 17.3307 in³ |
| Radius of gyration, r_y | 77.1 mm | 3.0354 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 984,000 mm⁴ | 2.3641 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 68.1 kg/m | 45.7611 lb/ft |