HE 400 AA
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 | 378 mm | 14.8819 in |
| Flange width, b_f | 300 mm | 11.811 in |
| Web thickness, t_w | 9.5 mm | 0.374016 in |
| Flange thickness, t_f | 13 mm | 0.511811 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 312,000,000 mm⁴ | 749.583 in⁴ |
| Elastic modulus, Sₓ | 1,650,000 mm³ | 100.6892 in³ |
| Plastic modulus, Zₓ | 1,820,000 mm³ | 111.0632 in³ |
| Radius of gyration, rₓ | 163 mm | 6.4173 in |
| Distance to top fibre | 189 mm | 7.4409 in |
| Distance to bottom fibre | 189 mm | 7.4409 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 58,600,000 mm⁴ | 140.7871 in⁴ |
| Elastic modulus, S_y | 391,000 mm³ | 23.8603 in³ |
| Plastic modulus, Z_y | 600,000 mm³ | 36.6142 in³ |
| Radius of gyration, r_y | 70.6 mm | 2.7795 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 813,000 mm⁴ | 1.9532 in⁴ |
| Warping constant, C_w | 1.95000e+12 mm⁶ | 7,261.6 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 92.4 kg/m | 62.0899 lb/ft |