IPE 140 vs HEA 140
- IPE 140 is 48 % lighter than HEA 140 (12.9 vs 24.7 kg/m).
- HEA 140 has 91 % higher strong-axis stiffness Iy.
- HEA 140 has 8.7× higher weak-axis stiffness Iz, which governs columns and lateral stability.
- HEA 140 has 96 % higher plastic bending resistance (Wpl,y).
- Per kilogram of steel, both are similarly efficient in bending (Iy/G ≈ 42 cm⁴ per kg/m).
| Property | IPE 140 | HEA 140 |
|---|---|---|
| Height h [mm] | 140 | 133 |
| Flange width b [mm] | 73 | 140 |
| Web thickness tw [mm] | 4.7 | 5.5 |
| Flange thickness tf [mm] | 6.9 | 8.5 |
| Area A [cm²] | 16.4 | 31.4 |
| Mass G [kg/m] | 12.9 | 24.7 |
| Moment of inertia Iy [cm⁴] | 541 | 1 033 |
| Elastic modulus Wel,y [cm³] | 77 | 155 |
| Plastic modulus Wpl,y [cm³] | 88 | 174 |
| Moment of inertia Iz [cm⁴] | 45 | 389 |
| Radius of gyration iy [mm] | 57.4 | 57.3 |
| Radius of gyration iz [mm] | 16.5 | 35.2 |
| Torsion constant It [cm⁴] | 2.4 | 8.0 |
| Warping constant Iw [×10³ cm⁶] | 2.0 | 14.7 |
Highlighted value = the favourable one (higher stiffness/modulus, lower mass). Full property sets on the profile pages.