CHS 168.3×10
Circular hollow sections from Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness, t | 10 mm | 0.393701 in |
| Outside diameter | 168.3 mm | 6.626 in |
| Inside diameter | 148.3 mm | 5.8386 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 15,600,000 mm⁴ | 37.4792 in⁴ |
| Elastic modulus, Sₓ | 186,000 mm³ | 11.3504 in³ |
| Plastic modulus, Zₓ | 251,000 mm³ | 15.317 in³ |
| Radius of gyration, rₓ | 56.1 mm | 2.2087 in |
| Distance to top fibre | 84.15 mm | 3.313 in |
| Distance to bottom fibre | 84.15 mm | 3.313 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 15,600,000 mm⁴ | 37.4792 in⁴ |
| Elastic modulus, S_y | 186,000 mm³ | 11.3504 in³ |
| Plastic modulus, Z_y | 251,000 mm³ | 15.317 in³ |
| Radius of gyration, r_y | 56.1 mm | 2.2087 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 31,300,000 mm⁴ | 75.1986 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 39 kg/m | 26.2068 lb/ft |