SHS · EN 10219 · cold formed
SHS 300/6.3 is a cold-formed square hollow section per EN 10219: side 300 mm, wall thickness 6.3 mm, weight 57 kg/m, cross-section area 72.7 cm², moment of inertia Iy = 10340 cm⁴, elastic section modulus Wel,y = 689.5 cm³.
Check to EN 1993-1-1
Enter the design loads and the section is checked for bending, shear and compression with flexural buckling.
Bending and compression are not available for class 4 sections; effective properties per EN 1993-1-5 are required.
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.