UPN 140 vs UPE 140
- UPE 140 is 9 % lighter than UPN 140 (14.5 vs 16.0 kg/m).
- UPN 140 has 1 % higher strong-axis stiffness Iy.
- UPE 140 has 26 % higher weak-axis stiffness Iz, which governs columns and lateral stability.
- UPN 140 has 4 % higher plastic bending resistance (Wpl,y).
- Per kilogram of steel, UPE 140 is the more efficient bending section (Iy/G: 41 vs 38 cm⁴ per kg/m).
| Property | UPN 140 | UPE 140 |
|---|---|---|
| Height h [mm] | 140 | 140 |
| Flange width b [mm] | 60 | 65 |
| Web thickness tw [mm] | 7.0 | 5.0 |
| Flange thickness tf [mm] | 10.0 | 9.0 |
| Area A [cm²] | 20.4 | 18.4 |
| Mass G [kg/m] | 16.0 | 14.5 |
| Moment of inertia Iy [cm⁴] | 605 | 600 |
| Elastic modulus Wel,y [cm³] | 86 | 86 |
| Plastic modulus Wpl,y [cm³] | 103 | 99 |
| Moment of inertia Iz [cm⁴] | 63 | 79 |
| Radius of gyration iy [mm] | 54.5 | 57.1 |
| Radius of gyration iz [mm] | 17.5 | 20.7 |
| Torsion constant It [cm⁴] | 5.7 | 4.0 |
| Warping constant Iw [×10³ cm⁶] | 1.8 | 2.2 |
Highlighted value = the favourable one (higher stiffness/modulus, lower mass). Full property sets on the profile pages.