HEA 120 vs HEB 120
- HEA 120 is 25 % lighter than HEB 120 (19.9 vs 26.7 kg/m).
- HEB 120 has 43 % higher strong-axis stiffness Iy.
- HEB 120 has 38 % higher weak-axis stiffness Iz, which governs columns and lateral stability.
- HEB 120 has 38 % higher plastic bending resistance (Wpl,y).
- Per kilogram of steel, HEB 120 is the more efficient bending section (Iy/G: 32 vs 30 cm⁴ per kg/m).
| Property | HEA 120 | HEB 120 |
|---|---|---|
| Height h [mm] | 114 | 120 |
| Flange width b [mm] | 120 | 120 |
| Web thickness tw [mm] | 5.0 | 6.5 |
| Flange thickness tf [mm] | 8.0 | 11.0 |
| Area A [cm²] | 25.3 | 34.0 |
| Mass G [kg/m] | 19.9 | 26.7 |
| Moment of inertia Iy [cm⁴] | 606 | 864 |
| Elastic modulus Wel,y [cm³] | 106 | 144 |
| Plastic modulus Wpl,y [cm³] | 120 | 165 |
| Moment of inertia Iz [cm⁴] | 231 | 318 |
| Radius of gyration iy [mm] | 48.9 | 50.4 |
| Radius of gyration iz [mm] | 30.2 | 30.6 |
| Torsion constant It [cm⁴] | 6.0 | 13.9 |
| Warping constant Iw [×10³ cm⁶] | 6.3 | 9.1 |
Highlighted value = the favourable one (higher stiffness/modulus, lower mass). Full property sets on the profile pages.