Cold-Formed Circular Hollow Sections - 168.3x5.0

Cold-formed circular hollow sections (CHS) are strong, tube-shaped steel pipes made by rolling flat steel sheets at room temperature and welding the edges together. Because they are shaped cold without extra heat, the steel undergoes "work hardening," which naturally boosts its strength and hardness. Their smooth, rounded shape gives them excellent resistance to twisting forces and makes them highly efficient at carrying heavy loads from all directions. These versatile pipes are widely used in modern construction for columns, structural frameworks, bridges, and architectural features where both strength and a clean appearance are important.

168.3x5.0
Select ZIP download

Select DWG download

Nearby Sections

Previous
168.3x4.0
This section
168.3x5.0
Next
168.3x6.0

Dimensions

PropertyValue
D mm168.3
t mm5
kg/m20.1
A cm225.7

Full sortable table: Dimensions table for this category

Section Properties

PropertyValue
Ratio for Local Buckling - D/t33.7
Second Moment of Area - I cm4856
Radius of Gyration - r cm5.78
Elastic Modulus - Z cm3102
Plastic Modulus - S cm3133
Torsional Constants - J cm41710
Torsional Constants - C cm3203
Surface Area (Per Metre) - m20.529
Surface Area (Per Tonne) - m226.3

Full sortable table: Properties table for this category