UPN 100 vs UPE 100
Tapered flange
UPN 100
10.6 kg/m · 100 × 50 mm
Parallel flange
UPE 100
9.8 kg/m · 100 × 55 mm
10.6Mass G kg/m9.8
13.5Cross-section area A cm²12.5
206Moment of inertia Iy cm⁴207
29Moment of inertia Iz cm⁴38
41Section modulus Wel,y cm³41
49Section modulus Wpl,y cm³48
39.1Radius of gyration iy mm40.7
14.7Radius of gyration iz mm17.5
2.8Torsion constant It cm⁴2.0
0.4Warping constant Iw ×10³ cm⁶0.5
Bar length is the ratio to the higher value in the row.
Summary
2 %
higher plastic resistance
Per kilogram of steel UPE 100 is the more efficient bending section, by 8 %.
8 %
lighter per metre
Plus 31 % more on the weak axis.