FL · EN 10058
FL 180×15 is a hot rolled steel flat bar per EN 10058: width 180 mm, thickness 15 mm, weight 21.2 kg/m, cross-section area 27 cm², moment of inertia Iy = 729 cm⁴, elastic section modulus Wel,y = 81 cm³.
Check to EN 1993-1-1
Enter the design loads and the section is checked for bending, shear and compression with flexural buckling.
Yield strength is taken from the product standard for the governing thickness, so above 16 mm it is lower than the nominal grade. Simplified checks per EN 1993-1-1, without M+N+V interaction, without lateral-torsional buckling and without web shear buckling. Verify with a full design.