HE 650×343
HE wide flange 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 |
|---|---|---|
| Depth, d | 680 mm | 26.7717 in |
| Flange width, b_f | 309 mm | 12.1654 in |
| Web thickness, t_w | 25 mm | 0.984252 in |
| Flange thickness, t_f | 46 mm | 1.811 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 3.34000e+9 mm⁴ | 8,024.382 in⁴ |
| Elastic modulus, Sₓ | 9,820,000 mm³ | 599.2532 in³ |
| Plastic modulus, Zₓ | 11,400,000 mm³ | 695.6707 in³ |
| Radius of gyration, rₓ | 276 mm | 10.8661 in |
| Distance to top fibre | 340 mm | 13.3858 in |
| Distance to bottom fibre | 340 mm | 13.3858 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 227,000,000 mm⁴ | 545.3697 in⁴ |
| Elastic modulus, S_y | 1,470,000 mm³ | 89.7049 in³ |
| Plastic modulus, Z_y | 2,300,000 mm³ | 140.3546 in³ |
| Radius of gyration, r_y | 72.1 mm | 2.8386 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 24,400,000 mm⁴ | 58.6212 in⁴ |
| Warping constant, C_w | 2.27000e+13 mm⁶ | 84,532.47 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 343 kg/m | 230.4854 lb/ft |