CHS 76.1×3.6
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 | 76.1 mm | 2.9961 in |
| Inside diameter | 68.9 mm | 2.7126 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 540,000 mm⁴ | 1.2974 in⁴ |
| Elastic modulus, Sₓ | 14,200 mm³ | 0.866537 in³ |
| Plastic modulus, Zₓ | 18,900 mm³ | 1.1533 in³ |
| Radius of gyration, rₓ | 25.7 mm | 1.0118 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 | 540,000 mm⁴ | 1.2974 in⁴ |
| Elastic modulus, S_y | 14,200 mm³ | 0.866537 in³ |
| Plastic modulus, Z_y | 18,900 mm³ | 1.1533 in³ |
| Radius of gyration, r_y | 25.7 mm | 1.0118 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 1,080,000 mm⁴ | 2.5947 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 6.44 kg/m | 4.3275 lb/ft |