IPE 120 vs HEA 120
- IPE 120 is 48 % lighter than HEA 120 (10.4 vs 19.9 kg/m).
- HEA 120 has 91 % higher strong-axis stiffness Iy.
- HEA 120 has 8.3× higher weak-axis stiffness Iz, which governs columns and lateral stability.
- HEA 120 has 97 % higher plastic bending resistance (Wpl,y).
- Per kilogram of steel, both are similarly efficient in bending (Iy/G ≈ 31 cm⁴ per kg/m).
| Property | IPE 120 | HEA 120 |
|---|---|---|
| Height h [mm] | 120 | 114 |
| Flange width b [mm] | 64 | 120 |
| Web thickness tw [mm] | 4.4 | 5.0 |
| Flange thickness tf [mm] | 6.3 | 8.0 |
| Area A [cm²] | 13.2 | 25.3 |
| Mass G [kg/m] | 10.4 | 19.9 |
| Moment of inertia Iy [cm⁴] | 318 | 606 |
| Elastic modulus Wel,y [cm³] | 53 | 106 |
| Plastic modulus Wpl,y [cm³] | 61 | 120 |
| Moment of inertia Iz [cm⁴] | 28 | 231 |
| Radius of gyration iy [mm] | 49.0 | 48.9 |
| Radius of gyration iz [mm] | 14.5 | 30.2 |
| Torsion constant It [cm⁴] | 1.7 | 6.0 |
| Warping constant Iw [×10³ cm⁶] | 0.9 | 6.3 |
Highlighted value = the favourable one (higher stiffness/modulus, lower mass). Full property sets on the profile pages.