L 120×80×12
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 | 120 mm | 4.7244 in |
| Width | 80 mm | 3.1496 in |
| Thickness, t | 12 mm | 0.472441 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 3,230,000 mm⁴ | 7.7601 in⁴ |
| Elastic modulus, Sₓ | 40,400 mm³ | 2.4654 in³ |
| Radius of gyration, rₓ | 37.7 mm | 1.4843 in |
| Distance to top fibre | 79.9505 mm | 3.1477 in |
| Distance to bottom fibre | 40.0495 mm | 1.5768 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 1,140,000 mm⁴ | 2.7389 in⁴ |
| Elastic modulus, S_y | 19,100 mm³ | 1.1656 in³ |
| Radius of gyration, r_y | 22.4 mm | 0.88189 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 116,000 mm⁴ | 0.278691 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 17.8 kg/m | 11.961 lb/ft |