HD 400×634
HD wide flange columns 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 | 474 mm | 18.6614 in |
| Flange width, b_f | 424 mm | 16.6929 in |
| Web thickness, t_w | 47.6 mm | 1.874 in |
| Flange thickness, t_f | 77.1 mm | 3.0354 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 2.74000e+9 mm⁴ | 6,582.876 in⁴ |
| Elastic modulus, Sₓ | 11,600,000 mm³ | 707.8754 in³ |
| Plastic modulus, Zₓ | 14,200,000 mm³ | 866.5372 in³ |
| Radius of gyration, rₓ | 184 mm | 7.2441 in |
| Distance to top fibre | 237 mm | 9.3307 in |
| Distance to bottom fibre | 237 mm | 9.3307 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 982,000,000 mm⁴ | 2,359.264 in⁴ |
| Elastic modulus, S_y | 4,630,000 mm³ | 282.5399 in³ |
| Plastic modulus, Z_y | 7,120,000 mm³ | 434.4891 in³ |
| Radius of gyration, r_y | 110 mm | 4.3307 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 138,000,000 mm⁴ | 331.5463 in⁴ |
| Warping constant, C_w | 3.86000e+13 mm⁶ | 143,742.437 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 634 kg/m | 426.0283 lb/ft |