HEA 180 vs HEB 180
- HEA 180 is 31 % lighter than HEB 180 (35.5 vs 51.2 kg/m).
- HEB 180 has 53 % higher strong-axis stiffness Iy.
- HEB 180 has 47 % higher weak-axis stiffness Iz, which governs columns and lateral stability.
- HEB 180 has 48 % higher plastic bending resistance (Wpl,y).
- Per kilogram of steel, HEB 180 is the more efficient bending section (Iy/G: 75 vs 71 cm⁴ per kg/m).
| Property | HEA 180 | HEB 180 |
|---|---|---|
| Height h [mm] | 171 | 180 |
| Flange width b [mm] | 180 | 180 |
| Web thickness tw [mm] | 6.0 | 8.5 |
| Flange thickness tf [mm] | 9.5 | 14.0 |
| Area A [cm²] | 45.3 | 65.3 |
| Mass G [kg/m] | 35.5 | 51.2 |
| Moment of inertia Iy [cm⁴] | 2 510 | 3 831 |
| Elastic modulus Wel,y [cm³] | 294 | 426 |
| Plastic modulus Wpl,y [cm³] | 325 | 481 |
| Moment of inertia Iz [cm⁴] | 925 | 1 363 |
| Radius of gyration iy [mm] | 74.5 | 76.6 |
| Radius of gyration iz [mm] | 45.2 | 45.7 |
| Torsion constant It [cm⁴] | 14.7 | 42.2 |
| Warping constant Iw [×10³ cm⁶] | 59.0 | 91.7 |
Highlighted value = the favourable one (higher stiffness/modulus, lower mass). Full property sets on the profile pages.