HD 320×300
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 | 375 mm | 14.7638 in |
| Flange width, b_f | 313 mm | 12.3228 in |
| Web thickness, t_w | 27 mm | 1.063 in |
| Flange thickness, t_f | 48 mm | 1.8898 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 869,000,000 mm⁴ | 2,087.781 in⁴ |
| Elastic modulus, Sₓ | 4,640,000 mm³ | 283.1502 in³ |
| Plastic modulus, Zₓ | 5,520,000 mm³ | 336.8511 in³ |
| Radius of gyration, rₓ | 151 mm | 5.9449 in |
| Distance to top fibre | 187.5 mm | 7.3819 in |
| Distance to bottom fibre | 187.5 mm | 7.3819 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 246,000,000 mm⁴ | 591.0174 in⁴ |
| Elastic modulus, S_y | 1,570,000 mm³ | 95.8073 in³ |
| Plastic modulus, Z_y | 2,410,000 mm³ | 147.0672 in³ |
| Radius of gyration, r_y | 80.2 mm | 3.1575 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 26,300,000 mm⁴ | 63.186 in⁴ |
| Warping constant, C_w | 6.56000e+12 mm⁶ | 24,428.767 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 300 kg/m | 201.5907 lb/ft |