UPN 300 vs UPE 300
- UPE 300 is 4 % lighter than UPN 300 (44.4 vs 46.2 kg/m).
- UPN 300 has 3 % higher strong-axis stiffness Iy.
- UPE 300 has 9 % higher weak-axis stiffness Iz, which governs columns and lateral stability.
- UPN 300 has 3 % higher plastic bending resistance (Wpl,y).
- Per kilogram of steel, both are similarly efficient in bending (Iy/G ≈ 175 cm⁴ per kg/m).
| Property | UPN 300 | UPE 300 |
|---|---|---|
| Height h [mm] | 300 | 300 |
| Flange width b [mm] | 100 | 100 |
| Web thickness tw [mm] | 10.0 | 9.5 |
| Flange thickness tf [mm] | 16.0 | 15.0 |
| Area A [cm²] | 58.8 | 56.6 |
| Mass G [kg/m] | 46.2 | 44.4 |
| Moment of inertia Iy [cm⁴] | 8 030 | 7 823 |
| Elastic modulus Wel,y [cm³] | 535 | 522 |
| Plastic modulus Wpl,y [cm³] | 632 | 613 |
| Moment of inertia Iz [cm⁴] | 495 | 538 |
| Radius of gyration iy [mm] | 117.0 | 117.6 |
| Radius of gyration iz [mm] | 29.0 | 30.8 |
| Torsion constant It [cm⁴] | 37.4 | 31.5 |
| Warping constant Iw [×10³ cm⁶] | 69.1 | 72.7 |
Highlighted value = the favourable one (higher stiffness/modulus, lower mass). Full property sets on the profile pages.