UPN 220 vs UPE 220
- UPE 220 is 10 % lighter than UPN 220 (26.6 vs 29.4 kg/m).
- UPN 220 has 0 % higher strong-axis stiffness Iy.
- UPE 220 has 25 % higher weak-axis stiffness Iz, which governs columns and lateral stability.
- UPN 220 has 4 % higher plastic bending resistance (Wpl,y).
- Per kilogram of steel, UPE 220 is the more efficient bending section (Iy/G: 101 vs 91 cm⁴ per kg/m).
| Property | UPN 220 | UPE 220 |
|---|---|---|
| Height h [mm] | 220 | 220 |
| Flange width b [mm] | 80 | 85 |
| Web thickness tw [mm] | 9.0 | 6.5 |
| Flange thickness tf [mm] | 12.5 | 12.0 |
| Area A [cm²] | 37.4 | 33.9 |
| Mass G [kg/m] | 29.4 | 26.6 |
| Moment of inertia Iy [cm⁴] | 2 690 | 2 682 |
| Elastic modulus Wel,y [cm³] | 245 | 244 |
| Plastic modulus Wpl,y [cm³] | 292 | 282 |
| Moment of inertia Iz [cm⁴] | 197 | 246 |
| Radius of gyration iy [mm] | 84.8 | 89.0 |
| Radius of gyration iz [mm] | 23.0 | 27.0 |
| Torsion constant It [cm⁴] | 16.0 | 12.1 |
| Warping constant Iw [×10³ cm⁶] | 14.6 | 17.6 |
Highlighted value = the favourable one (higher stiffness/modulus, lower mass). Full property sets on the profile pages.