CHS 139.7/4 is a hot-finished circular hollow section per EN 10210: outer diameter 139.7 mm, wall thickness 4 mm, weight 13.4 kg/m, cross-section area 17.1 cm², moment of inertia Iy = 392.9 cm⁴, elastic section modulus Wel,y = 56.2 cm³.
Geometry
Outer diameter d139.70 mm
Wall thickness t4.00 mm
Cross-section area A17.050 cm²
Weight G steel 7850 kg/m³13.40kg/m
Section properties
Moment of inertia IⓘSecond moment of area392.900 cm⁴