HE 450 M
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 | 478 mm | 18.8189 in |
| Flange width, b_f | 307 mm | 12.0866 in |
| Web thickness, t_w | 21 mm | 0.826772 in |
| Flange thickness, t_f | 40 mm | 1.5748 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 1.32000e+9 mm⁴ | 3,171.313 in⁴ |
| Elastic modulus, Sₓ | 5,500,000 mm³ | 335.6306 in³ |
| Plastic modulus, Zₓ | 6,330,000 mm³ | 386.2803 in³ |
| Radius of gyration, rₓ | 198 mm | 7.7953 in |
| Distance to top fibre | 239 mm | 9.4094 in |
| Distance to bottom fibre | 239 mm | 9.4094 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 193,000,000 mm⁴ | 463.6844 in⁴ |
| Elastic modulus, S_y | 1,260,000 mm³ | 76.8899 in³ |
| Plastic modulus, Z_y | 1,940,000 mm³ | 118.3861 in³ |
| Radius of gyration, r_y | 75.9 mm | 2.9882 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 15,300,000 mm⁴ | 36.7584 in⁴ |
| Warping constant, C_w | 9.25000e+12 mm⁶ | 34,446.05 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 263 kg/m | 176.7278 lb/ft |