IPE 300 vs IPN 300
Parallel flange
IPE 300
42.2 kg/m · 300 × 150 mm
Tapered flange
IPN 300
54.2 kg/m · 300 × 125 mm
42.2Mass G kg/m54.2
53.8Cross-section area A cm²69.0
8 356Moment of inertia Iy cm⁴9 800
604Moment of inertia Iz cm⁴451
557Section modulus Wel,y cm³653
628Section modulus Wpl,y cm³762
124.6Radius of gyration iy mm119.0
33.5Radius of gyration iz mm25.5
19.8Torsion constant It cm⁴56.8
124.3Warping constant Iw ×10³ cm⁶91.8
Bar length is the ratio to the higher value in the row.
Summary
22 %
lighter per metre
Plus 34 % more on the weak axis.
17 %
stiffer on the strong axis
Plus 21 % higher plastic resistance Wpl,y.
Per kilogram of steel IPE 300 is the more efficient bending section, by 9 %.