HD 320×127
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 | 320 mm | 12.5984 in |
| Flange width, b_f | 300 mm | 11.811 in |
| Web thickness, t_w | 11.5 mm | 0.452756 in |
| Flange thickness, t_f | 20.5 mm | 0.807087 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 308,000,000 mm⁴ | 739.973 in⁴ |
| Elastic modulus, Sₓ | 1,930,000 mm³ | 117.7758 in³ |
| Plastic modulus, Zₓ | 2,150,000 mm³ | 131.2011 in³ |
| Radius of gyration, rₓ | 138 mm | 5.4331 in |
| Distance to top fibre | 160 mm | 6.2992 in |
| Distance to bottom fibre | 160 mm | 6.2992 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 92,400,000 mm⁴ | 221.9919 in⁴ |
| Elastic modulus, S_y | 616,000 mm³ | 37.5906 in³ |
| Plastic modulus, Z_y | 939,000 mm³ | 57.3013 in³ |
| Radius of gyration, r_y | 75.7 mm | 2.9803 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 2,300,000 mm⁴ | 5.5258 in⁴ |
| Warping constant, C_w | 2.07000e+12 mm⁶ | 7,708.468 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 127 kg/m | 85.3401 lb/ft |