IPE 120 vs IPN 120
- IPE 120 is 6 % lighter than IPN 120 (10.4 vs 11.1 kg/m).
- IPN 120 has 3 % higher strong-axis stiffness Iy.
- IPE 120 has 29 % higher weak-axis stiffness Iz, which governs columns and lateral stability.
- IPN 120 has 5 % higher plastic bending resistance (Wpl,y).
- Per kilogram of steel, IPE 120 is the more efficient bending section (Iy/G: 31 vs 30 cm⁴ per kg/m).
| Property | IPE 120 | IPN 120 |
|---|---|---|
| Height h [mm] | 120 | 120 |
| Flange width b [mm] | 64 | 58 |
| Web thickness tw [mm] | 4.4 | 5.1 |
| Flange thickness tf [mm] | 6.3 | 7.7 |
| Area A [cm²] | 13.2 | 14.2 |
| Mass G [kg/m] | 10.4 | 11.1 |
| Moment of inertia Iy [cm⁴] | 318 | 328 |
| Elastic modulus Wel,y [cm³] | 53 | 55 |
| Plastic modulus Wpl,y [cm³] | 61 | 64 |
| Moment of inertia Iz [cm⁴] | 28 | 22 |
| Radius of gyration iy [mm] | 49.0 | 48.0 |
| Radius of gyration iz [mm] | 14.5 | 12.3 |
| Torsion constant It [cm⁴] | 1.7 | 2.7 |
| Warping constant Iw [×10³ cm⁶] | 0.9 | 0.7 |
Highlighted value = the favourable one (higher stiffness/modulus, lower mass). Full property sets on the profile pages.