HE 550 A
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 | 540 mm | 21.2598 in |
| Flange width, b_f | 300 mm | 11.811 in |
| Web thickness, t_w | 12.5 mm | 0.492126 in |
| Flange thickness, t_f | 24 mm | 0.944882 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 1.12000e+9 mm⁴ | 2,690.811 in⁴ |
| Elastic modulus, Sₓ | 4,150,000 mm³ | 253.2485 in³ |
| Plastic modulus, Zₓ | 4,620,000 mm³ | 281.9297 in³ |
| Radius of gyration, rₓ | 230 mm | 9.0551 in |
| Distance to top fibre | 270 mm | 10.6299 in |
| Distance to bottom fibre | 270 mm | 10.6299 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 108,000,000 mm⁴ | 259.471 in⁴ |
| Elastic modulus, S_y | 721,000 mm³ | 43.9981 in³ |
| Plastic modulus, Z_y | 1,110,000 mm³ | 67.7364 in³ |
| Radius of gyration, r_y | 71.5 mm | 2.815 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 3,600,000 mm⁴ | 8.649 in⁴ |
| Warping constant, C_w | 7.19000e+12 mm⁶ | 26,774.822 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 166 kg/m | 111.5469 lb/ft |