HE 320 A
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 | 310 mm | 12.2047 in |
| Flange width, b_f | 300 mm | 11.811 in |
| Web thickness, t_w | 9 mm | 0.354331 in |
| Flange thickness, t_f | 15.5 mm | 0.610236 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 229,000,000 mm⁴ | 550.1747 in⁴ |
| Elastic modulus, Sₓ | 1,480,000 mm³ | 90.3151 in³ |
| Plastic modulus, Zₓ | 1,630,000 mm³ | 99.4687 in³ |
| Radius of gyration, rₓ | 136 mm | 5.3543 in |
| Distance to top fibre | 155 mm | 6.1024 in |
| Distance to bottom fibre | 155 mm | 6.1024 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 69,800,000 mm⁴ | 167.6952 in⁴ |
| Elastic modulus, S_y | 466,000 mm³ | 28.4371 in³ |
| Plastic modulus, Z_y | 710,000 mm³ | 43.3269 in³ |
| Radius of gyration, r_y | 74.9 mm | 2.9488 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 1,120,000 mm⁴ | 2.6908 in⁴ |
| Warping constant, C_w | 1.51000e+12 mm⁶ | 5,623.085 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 97.6 kg/m | 65.5842 lb/ft |