UPN 120 vs UPE 120
Tapered flange
UPN 120
13.4 kg/m · 120 × 55 mm
Parallel flange
UPE 120
12.1 kg/m · 120 × 60 mm
13.4Mass G kg/m12.1
17.0Cross-section area A cm²15.4
364Moment of inertia Iy cm⁴364
43Moment of inertia Iz cm⁴55
61Section modulus Wel,y cm³61
73Section modulus Wpl,y cm³70
46.2Radius of gyration iy mm48.6
15.9Radius of gyration iz mm19.0
4.2Torsion constant It cm⁴2.9
0.9Warping constant Iw ×10³ cm⁶1.1
Bar length is the ratio to the higher value in the row.
Summary
3 %
higher plastic resistance
Per kilogram of steel UPE 120 is the more efficient bending section, by 10 %.
10 %
lighter per metre
Plus 28 % more on the weak axis.