HE 400 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 | 390 mm | 15.3543 in |
| Flange width, b_f | 300 mm | 11.811 in |
| Web thickness, t_w | 11 mm | 0.433071 in |
| Flange thickness, t_f | 19 mm | 0.748031 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 451,000,000 mm⁴ | 1,083.532 in⁴ |
| Elastic modulus, Sₓ | 2,310,000 mm³ | 140.9648 in³ |
| Plastic modulus, Zₓ | 2,560,000 mm³ | 156.2208 in³ |
| Radius of gyration, rₓ | 168 mm | 6.6142 in |
| Distance to top fibre | 195 mm | 7.6772 in |
| Distance to bottom fibre | 195 mm | 7.6772 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 85,600,000 mm⁴ | 205.6548 in⁴ |
| Elastic modulus, S_y | 571,000 mm³ | 34.8446 in³ |
| Plastic modulus, Z_y | 873,000 mm³ | 53.2737 in³ |
| Radius of gyration, r_y | 73.4 mm | 2.8898 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 1,930,000 mm⁴ | 4.6368 in⁴ |
| Warping constant, C_w | 2.94000e+12 mm⁶ | 10,948.258 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 125 kg/m | 83.9961 lb/ft |