HE 400 B
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 | 400 mm | 15.748 in |
| Flange width, b_f | 300 mm | 11.811 in |
| Web thickness, t_w | 13.5 mm | 0.531496 in |
| Flange thickness, t_f | 24 mm | 0.944882 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 577,000,000 mm⁴ | 1,386.248 in⁴ |
| Elastic modulus, Sₓ | 2,880,000 mm³ | 175.7484 in³ |
| Plastic modulus, Zₓ | 3,230,000 mm³ | 197.1067 in³ |
| Radius of gyration, rₓ | 171 mm | 6.7323 in |
| Distance to top fibre | 200 mm | 7.874 in |
| Distance to bottom fibre | 200 mm | 7.874 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 | 1,100,000 mm³ | 67.1261 in³ |
| Radius of gyration, r_y | 74 mm | 2.9134 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 3,610,000 mm⁴ | 8.6731 in⁴ |
| Warping constant, C_w | 3.82000e+12 mm⁶ | 14,225.288 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 155 kg/m | 104.1552 lb/ft |