IPE 450 vs HEA 450
- IPE 450 is 44 % lighter than HEA 450 (77.6 vs 139.8 kg/m).
- HEA 450 has 89 % higher strong-axis stiffness Iy.
- HEA 450 has 5.6× higher weak-axis stiffness Iz, which governs columns and lateral stability.
- HEA 450 has 89 % higher plastic bending resistance (Wpl,y).
- Per kilogram of steel, HEA 450 is the more efficient bending section (Iy/G: 456 vs 435 cm⁴ per kg/m).
| Property | IPE 450 | HEA 450 |
|---|---|---|
| Height h [mm] | 450 | 440 |
| Flange width b [mm] | 190 | 300 |
| Web thickness tw [mm] | 9.4 | 11.5 |
| Flange thickness tf [mm] | 14.6 | 21.0 |
| Area A [cm²] | 98.8 | 178.0 |
| Mass G [kg/m] | 77.6 | 139.8 |
| Moment of inertia Iy [cm⁴] | 33 740 | 63 720 |
| Elastic modulus Wel,y [cm³] | 1 500 | 2 896 |
| Plastic modulus Wpl,y [cm³] | 1 702 | 3 216 |
| Moment of inertia Iz [cm⁴] | 1 676 | 9 465 |
| Radius of gyration iy [mm] | 184.8 | 189.2 |
| Radius of gyration iz [mm] | 41.2 | 72.9 |
| Torsion constant It [cm⁴] | 66.0 | 249.1 |
| Warping constant Iw [×10³ cm⁶] | 781.0 | 4 087.2 |
Highlighted value = the favourable one (higher stiffness/modulus, lower mass). Full property sets on the profile pages.