HD 320×198
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 | 343 mm | 13.5039 in |
| Flange width, b_f | 306 mm | 12.0472 in |
| Web thickness, t_w | 18 mm | 0.708661 in |
| Flange thickness, t_f | 32 mm | 1.2598 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 519,000,000 mm⁴ | 1,246.902 in⁴ |
| Elastic modulus, Sₓ | 3,030,000 mm³ | 184.9019 in³ |
| Plastic modulus, Zₓ | 3,480,000 mm³ | 212.3626 in³ |
| Radius of gyration, rₓ | 143 mm | 5.6299 in |
| Distance to top fibre | 171.5 mm | 6.752 in |
| Distance to bottom fibre | 171.5 mm | 6.752 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 153,000,000 mm⁴ | 367.584 in⁴ |
| Elastic modulus, S_y | 1,000,000 mm³ | 61.0237 in³ |
| Plastic modulus, Z_y | 1,530,000 mm³ | 93.3663 in³ |
| Radius of gyration, r_y | 77.9 mm | 3.0669 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 8,090,000 mm⁴ | 19.4363 in⁴ |
| Warping constant, C_w | 3.70000e+12 mm⁶ | 13,778.42 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 198 kg/m | 133.0499 lb/ft |