IPE O 400
IPE beams 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 | 404 mm | 15.9055 in |
| Flange width, b_f | 182 mm | 7.1654 in |
| Web thickness, t_w | 9.7 mm | 0.38189 in |
| Flange thickness, t_f | 15.5 mm | 0.610236 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 268,000,000 mm⁴ | 643.8726 in⁴ |
| Elastic modulus, Sₓ | 1,320,000 mm³ | 80.5513 in³ |
| Plastic modulus, Zₓ | 1,500,000 mm³ | 91.5356 in³ |
| Radius of gyration, rₓ | 167 mm | 6.5748 in |
| Distance to top fibre | 202 mm | 7.9528 in |
| Distance to bottom fibre | 202 mm | 7.9528 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 15,600,000 mm⁴ | 37.4792 in⁴ |
| Elastic modulus, S_y | 172,000 mm³ | 10.4961 in³ |
| Plastic modulus, Z_y | 269,000 mm³ | 16.4154 in³ |
| Radius of gyration, r_y | 40.3 mm | 1.5866 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 733,000 mm⁴ | 1.761 in⁴ |
| Warping constant, C_w | 5.88000e+11 mm⁶ | 2,189.652 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 75.7 kg/m | 50.8681 lb/ft |