HD 400×900
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 | 531 mm | 20.9055 in |
| Flange width, b_f | 442 mm | 17.4016 in |
| Web thickness, t_w | 65.9 mm | 2.5945 in |
| Flange thickness, t_f | 106 mm | 4.1732 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 4.50000e+9 mm⁴ | 10,811.293 in⁴ |
| Elastic modulus, Sₓ | 17,000,000 mm³ | 1,037.404 in³ |
| Plastic modulus, Zₓ | 21,600,000 mm³ | 1,318.113 in³ |
| Radius of gyration, rₓ | 198 mm | 7.7953 in |
| Distance to top fibre | 265.5 mm | 10.4528 in |
| Distance to bottom fibre | 265.5 mm | 10.4528 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 1.53000e+9 mm⁴ | 3,675.84 in⁴ |
| Elastic modulus, S_y | 6,940,000 mm³ | 423.5048 in³ |
| Plastic modulus, Z_y | 10,700,000 mm³ | 652.9541 in³ |
| Radius of gyration, r_y | 116 mm | 4.5669 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 364,000,000 mm⁴ | 874.5135 in⁴ |
| Warping constant, C_w | 6.89000e+13 mm⁶ | 256,576.527 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 900 kg/m | 604.7721 lb/ft |