CHS 168.3 — Weight & Section Properties
circular hollow section (CHS) per EN 10219 (cold formed)
CHS 168.3 is a circular hollow section (CHS) with an outside dimension of Ø 168.3 mm, available in wall thicknesses of 4.5, 5, 6, 8, 10 mm — from 18.2 to 39 kg per meter. The table below lists weight and section properties for every standard thickness, computed from the exact EN 10219-2 corner geometry (7,850 kg/m³).
Typical uses: frames, columns, railings, machine bases, and general steel construction. Every row can be checked in the weight or deflection calculator with one click below.
CHS 168.3 × 6: cross-section drawn to scale (Ø 168.3 mm, t = 6 mm shown — the most common wall)CHS 168.3 — all wall thicknesses
| t (mm) | G (kg/m) | A (cm²) | I (cm⁴) | W (cm³) | i (cm) |
|---|
| 4.5 | 18.2 | 23.2 | 777 | 92.4 | 5.79 |
| 5 | 20.1 | 25.7 | 856 | 102 | 5.78 |
| 6 | 24 | 30.6 | 1,010 | 120 | 5.74 |
| 8 | 31.6 | 40.3 | 1,300 | 154 | 5.67 |
| 10 | 39 | 49.7 | 1,560 | 186 | 5.61 |
Frequently Asked Questions
How much does CHS 168.3 weigh?
It depends on the wall thickness: from 18.2 kg/m at t = 4.5 mm up to 39 kg/m at t = 10 mm. With the common t = 6 mm it weighs 24 kg/m — a 6 m bar is 144 kg.
Which wall thicknesses does CHS 168.3 come in?
The standard EN 10219 program for Ø 168.3 mm covers t = 4.5, 5, 6, 8, 10 mm. Other thicknesses exist by mill order; stockholders typically carry the ones in this table.
Which standard defines CHS 168.3?
These values follow EN 10219 (cold formed structural hollow sections) with its corner geometry — outer radius 2t, 2.5t or 3t depending on wall thickness. Hot finished equivalents per EN 10210 have tighter corners and marginally different weights and properties.
Values are entered from the governing standard’s published tables and cross-checked programmatically against its mass and section formulas before publication. Spotted an error? Write to advertising@metalabout.net — verified corrections ship within days. About