UPN 180 vs UPE 180
Tapered flange
UPN 180
22.0 kg/m · 180 × 70 mm
Parallel flange
UPE 180
19.7 kg/m · 180 × 75 mm
22.0Mass G kg/m19.7
28.0Cross-section area A cm²25.1
1 350Moment of inertia Iy cm⁴1 353
114Moment of inertia Iz cm⁴144
150Section modulus Wel,y cm³150
179Section modulus Wpl,y cm³173
69.5Radius of gyration iy mm73.4
20.2Radius of gyration iz mm23.9
9.6Torsion constant It cm⁴7.0
5.6Warping constant Iw ×10³ cm⁶6.8
Bar length is the ratio to the higher value in the row.
Summary
3 %
higher plastic resistance
Per kilogram of steel UPE 180 is the more efficient bending section, by 11 %.
10 %
lighter per metre
Plus 26 % more on the weak axis.