CHS 33.7×3.2
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 | 3.2 mm | 0.125984 in |
| Outside diameter | 33.7 mm | 1.3268 in |
| Inside diameter | 27.3 mm | 1.0748 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 36,000 mm⁴ | 0.08649 in⁴ |
| Elastic modulus, Sₓ | 2,140 mm³ | 0.130591 in³ |
| Plastic modulus, Zₓ | 2,990 mm³ | 0.182461 in³ |
| Radius of gyration, rₓ | 10.8 mm | 0.425197 in |
| Distance to top fibre | 16.85 mm | 0.663386 in |
| Distance to bottom fibre | 16.85 mm | 0.663386 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 36,000 mm⁴ | 0.08649 in⁴ |
| Elastic modulus, S_y | 2,140 mm³ | 0.130591 in³ |
| Plastic modulus, Z_y | 2,990 mm³ | 0.182461 in³ |
| Radius of gyration, r_y | 10.8 mm | 0.425197 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 72,100 mm⁴ | 0.173221 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 2.41 kg/m | 1.6194 lb/ft |