CHS 26.9×3.6
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 | 3.6 mm | 0.141732 in |
| Outside diameter | 26.9 mm | 1.0591 in |
| Inside diameter | 19.7 mm | 0.775591 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 18,300 mm⁴ | 0.043966 in⁴ |
| Elastic modulus, Sₓ | 1,360 mm³ | 0.082992 in³ |
| Plastic modulus, Zₓ | 1,970 mm³ | 0.120217 in³ |
| Radius of gyration, rₓ | 8.34 mm | 0.328346 in |
| Distance to top fibre | 13.45 mm | 0.5295275 in |
| Distance to bottom fibre | 13.45 mm | 0.5295275 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 18,300 mm⁴ | 0.043966 in⁴ |
| Elastic modulus, S_y | 1,360 mm³ | 0.082992 in³ |
| Plastic modulus, Z_y | 1,970 mm³ | 0.120217 in³ |
| Radius of gyration, r_y | 8.34 mm | 0.328346 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 36,600 mm⁴ | 0.087932 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 2.07 kg/m | 1.391 lb/ft |