IPE 120 vs IPN 120
Parallel flange
IPE 120
10.4 kg/m · 120 × 64 mm
Tapered flange
IPN 120
11.1 kg/m · 120 × 58 mm
10.4Mass G kg/m11.1
13.2Cross-section area A cm²14.2
318Moment of inertia Iy cm⁴328
28Moment of inertia Iz cm⁴22
53Section modulus Wel,y cm³55
61Section modulus Wpl,y cm³64
49.0Radius of gyration iy mm48.0
14.5Radius of gyration iz mm12.3
1.7Torsion constant It cm⁴2.7
0.9Warping constant Iw ×10³ cm⁶0.7
Bar length is the ratio to the higher value in the row.
Summary
6 %
lighter per metre
Plus 29 % more on the weak axis.
3 %
stiffer on the strong axis
Plus 5 % higher plastic resistance Wpl,y.
Per kilogram of steel IPE 120 is the more efficient bending section, by 3 %.