HE 320 AA
HE wide flange sections 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 | 301 mm | 11.8504 in |
| Flange width, b_f | 300 mm | 11.811 in |
| Web thickness, t_w | 8 mm | 0.314961 in |
| Flange thickness, t_f | 11 mm | 0.433071 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 164,000,000 mm⁴ | 394.0116 in⁴ |
| Elastic modulus, Sₓ | 1,090,000 mm³ | 66.5159 in³ |
| Plastic modulus, Zₓ | 1,200,000 mm³ | 73.2285 in³ |
| Radius of gyration, rₓ | 132 mm | 5.1969 in |
| Distance to top fibre | 150.5 mm | 5.9252 in |
| Distance to bottom fibre | 150.5 mm | 5.9252 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 49,600,000 mm⁴ | 119.1645 in⁴ |
| Elastic modulus, S_y | 331,000 mm³ | 20.1989 in³ |
| Plastic modulus, Z_y | 506,000 mm³ | 30.878 in³ |
| Radius of gyration, r_y | 72.4 mm | 2.8504 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 536,000 mm⁴ | 1.2877 in⁴ |
| Warping constant, C_w | 1.04000e+12 mm⁶ | 3,872.853 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 74.2 kg/m | 49.8601 lb/ft |