HD 320×158
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 | 330 mm | 12.9921 in |
| Flange width, b_f | 303 mm | 11.9291 in |
| Web thickness, t_w | 14.5 mm | 0.570866 in |
| Flange thickness, t_f | 25.5 mm | 1.0039 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 396,000,000 mm⁴ | 951.3938 in⁴ |
| Elastic modulus, Sₓ | 2,400,000 mm³ | 146.457 in³ |
| Plastic modulus, Zₓ | 2,720,000 mm³ | 165.9846 in³ |
| Radius of gyration, rₓ | 140 mm | 5.5118 in |
| Distance to top fibre | 165 mm | 6.4961 in |
| Distance to bottom fibre | 165 mm | 6.4961 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 118,000,000 mm⁴ | 283.4961 in⁴ |
| Elastic modulus, S_y | 782,000 mm³ | 47.7206 in³ |
| Plastic modulus, Z_y | 1,190,000 mm³ | 72.6183 in³ |
| Radius of gyration, r_y | 76.7 mm | 3.0197 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 4,250,000 mm⁴ | 10.2107 in⁴ |
| Warping constant, C_w | 2.74000e+12 mm⁶ | 10,203.479 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 158 kg/m | 106.1711 lb/ft |