UPN 180 vs UPE 180
- UPE 180 is 10 % lighter than UPN 180 (19.7 vs 22.0 kg/m).
- UPE 180 has 0 % higher strong-axis stiffness Iy.
- UPE 180 has 26 % higher weak-axis stiffness Iz, which governs columns and lateral stability.
- UPN 180 has 3 % higher plastic bending resistance (Wpl,y).
- Per kilogram of steel, UPE 180 is the more efficient bending section (Iy/G: 69 vs 61 cm⁴ per kg/m).
| Property | UPN 180 | UPE 180 |
|---|---|---|
| Height h [mm] | 180 | 180 |
| Flange width b [mm] | 70 | 75 |
| Web thickness tw [mm] | 8.0 | 5.5 |
| Flange thickness tf [mm] | 11.0 | 10.5 |
| Area A [cm²] | 28.0 | 25.1 |
| Mass G [kg/m] | 22.0 | 19.7 |
| Moment of inertia Iy [cm⁴] | 1 350 | 1 353 |
| Elastic modulus Wel,y [cm³] | 150 | 150 |
| Plastic modulus Wpl,y [cm³] | 179 | 173 |
| Moment of inertia Iz [cm⁴] | 114 | 144 |
| Radius of gyration iy [mm] | 69.5 | 73.4 |
| Radius of gyration iz [mm] | 20.2 | 23.9 |
| Torsion constant It [cm⁴] | 9.6 | 7.0 |
| Warping constant Iw [×10³ cm⁶] | 5.6 | 6.8 |
Highlighted value = the favourable one (higher stiffness/modulus, lower mass). Full property sets on the profile pages.