CHS 26.9×2.9
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 | 2.9 mm | 0.114173 in |
| Outside diameter | 26.9 mm | 1.0591 in |
| Inside diameter | 21.1 mm | 0.830709 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 16,000 mm⁴ | 0.03844 in⁴ |
| Elastic modulus, Sₓ | 1,190 mm³ | 0.072618 in³ |
| Plastic modulus, Zₓ | 1,680 mm³ | 0.10252 in³ |
| Radius of gyration, rₓ | 8.55 mm | 0.336614 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 | 16,000 mm⁴ | 0.03844 in⁴ |
| Elastic modulus, S_y | 1,190 mm³ | 0.072618 in³ |
| Plastic modulus, Z_y | 1,680 mm³ | 0.10252 in³ |
| Radius of gyration, r_y | 8.55 mm | 0.336614 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 31,900 mm⁴ | 0.07664 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 1.72 kg/m | 1.1558 lb/ft |