HD 400×421
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 | 425 mm | 16.7323 in |
| Flange width, b_f | 409 mm | 16.1024 in |
| Web thickness, t_w | 32.8 mm | 1.2913 in |
| Flange thickness, t_f | 52.6 mm | 2.0709 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 1.60000e+9 mm⁴ | 3,844.015 in⁴ |
| Elastic modulus, Sₓ | 7,510,000 mm³ | 458.2883 in³ |
| Plastic modulus, Zₓ | 8,880,000 mm³ | 541.8908 in³ |
| Radius of gyration, rₓ | 172 mm | 6.7717 in |
| Distance to top fibre | 212.5 mm | 8.3661 in |
| Distance to bottom fibre | 212.5 mm | 8.3661 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 601,000,000 mm⁴ | 1,443.908 in⁴ |
| Elastic modulus, S_y | 2,940,000 mm³ | 179.4098 in³ |
| Plastic modulus, Z_y | 4,490,000 mm³ | 273.9966 in³ |
| Radius of gyration, r_y | 106 mm | 4.1732 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 43,400,000 mm⁴ | 104.2689 in⁴ |
| Warping constant, C_w | 2.08000e+13 mm⁶ | 77,457.065 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 421 kg/m | 282.8989 lb/ft |