CHS 76.1×3.2
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 | 76.1 mm | 2.9961 in |
| Inside diameter | 69.7 mm | 2.7441 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 488,000 mm⁴ | 1.1724 in⁴ |
| Elastic modulus, Sₓ | 12,800 mm³ | 0.781104 in³ |
| Plastic modulus, Zₓ | 17,000 mm³ | 1.0374 in³ |
| Radius of gyration, rₓ | 25.8 mm | 1.0157 in |
| Distance to top fibre | 38.05 mm | 1.498 in |
| Distance to bottom fibre | 38.05 mm | 1.498 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 488,000 mm⁴ | 1.1724 in⁴ |
| Elastic modulus, S_y | 12,800 mm³ | 0.781104 in³ |
| Plastic modulus, Z_y | 17,000 mm³ | 1.0374 in³ |
| Radius of gyration, r_y | 25.8 mm | 1.0157 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 976,000 mm⁴ | 2.3448 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 5.75 kg/m | 3.8638 lb/ft |