IPE 400 vs HEB 400
- IPE 400 is 57 % lighter than HEB 400 (66.3 vs 155.3 kg/m).
- HEB 400 has 2.5× higher strong-axis stiffness Iy.
- HEB 400 has 8.2× higher weak-axis stiffness Iz, which governs columns and lateral stability.
- HEB 400 has 147 % higher plastic bending resistance (Wpl,y).
- Per kilogram of steel, HEB 400 is the more efficient bending section (Iy/G: 371 vs 349 cm⁴ per kg/m).
| Property | IPE 400 | HEB 400 |
|---|---|---|
| Height h [mm] | 400 | 400 |
| Flange width b [mm] | 180 | 300 |
| Web thickness tw [mm] | 8.6 | 13.5 |
| Flange thickness tf [mm] | 13.5 | 24.0 |
| Area A [cm²] | 84.5 | 197.8 |
| Mass G [kg/m] | 66.3 | 155.3 |
| Moment of inertia Iy [cm⁴] | 23 130 | 57 680 |
| Elastic modulus Wel,y [cm³] | 1 156 | 2 884 |
| Plastic modulus Wpl,y [cm³] | 1 307 | 3 232 |
| Moment of inertia Iz [cm⁴] | 1 318 | 10 820 |
| Radius of gyration iy [mm] | 165.5 | 170.8 |
| Radius of gyration iz [mm] | 39.5 | 74.0 |
| Torsion constant It [cm⁴] | 50.4 | 361.1 |
| Warping constant Iw [×10³ cm⁶] | 482.9 | 3 751.1 |
Highlighted value = the favourable one (higher stiffness/modulus, lower mass). Full property sets on the profile pages.