UPN 120 vs UPE 120
- UPE 120 is 10 % lighter than UPN 120 (12.1 vs 13.4 kg/m).
- UPN 120 has 0 % higher strong-axis stiffness Iy.
- UPE 120 has 28 % higher weak-axis stiffness Iz, which governs columns and lateral stability.
- UPN 120 has 3 % higher plastic bending resistance (Wpl,y).
- Per kilogram of steel, UPE 120 is the more efficient bending section (Iy/G: 30 vs 27 cm⁴ per kg/m).
| Property | UPN 120 | UPE 120 |
|---|---|---|
| Height h [mm] | 120 | 120 |
| Flange width b [mm] | 55 | 60 |
| Web thickness tw [mm] | 7.0 | 5.0 |
| Flange thickness tf [mm] | 9.0 | 8.0 |
| Area A [cm²] | 17.0 | 15.4 |
| Mass G [kg/m] | 13.4 | 12.1 |
| Moment of inertia Iy [cm⁴] | 364 | 364 |
| Elastic modulus Wel,y [cm³] | 61 | 61 |
| Plastic modulus Wpl,y [cm³] | 73 | 70 |
| Moment of inertia Iz [cm⁴] | 43 | 55 |
| Radius of gyration iy [mm] | 46.2 | 48.6 |
| Radius of gyration iz [mm] | 15.9 | 19.0 |
| Torsion constant It [cm⁴] | 4.2 | 2.9 |
| Warping constant Iw [×10³ cm⁶] | 0.9 | 1.1 |
Highlighted value = the favourable one (higher stiffness/modulus, lower mass). Full property sets on the profile pages.