HEA 140 vs HEB 140
- HEA 140 is 27 % lighter than HEB 140 (24.7 vs 33.7 kg/m).
- HEB 140 has 46 % higher strong-axis stiffness Iy.
- HEB 140 has 41 % higher weak-axis stiffness Iz, which governs columns and lateral stability.
- HEB 140 has 41 % higher plastic bending resistance (Wpl,y).
- Per kilogram of steel, HEB 140 is the more efficient bending section (Iy/G: 45 vs 42 cm⁴ per kg/m).
| Property | HEA 140 | HEB 140 |
|---|---|---|
| Height h [mm] | 133 | 140 |
| Flange width b [mm] | 140 | 140 |
| Web thickness tw [mm] | 5.5 | 7.0 |
| Flange thickness tf [mm] | 8.5 | 12.0 |
| Area A [cm²] | 31.4 | 43.0 |
| Mass G [kg/m] | 24.7 | 33.7 |
| Moment of inertia Iy [cm⁴] | 1 033 | 1 509 |
| Elastic modulus Wel,y [cm³] | 155 | 216 |
| Plastic modulus Wpl,y [cm³] | 174 | 245 |
| Moment of inertia Iz [cm⁴] | 389 | 550 |
| Radius of gyration iy [mm] | 57.3 | 59.3 |
| Radius of gyration iz [mm] | 35.2 | 35.8 |
| Torsion constant It [cm⁴] | 8.0 | 20.2 |
| Warping constant Iw [×10³ cm⁶] | 14.7 | 22.0 |
Highlighted value = the favourable one (higher stiffness/modulus, lower mass). Full property sets on the profile pages.