CHS 42.4×3.6
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 | 42.4 mm | 1.6693 in |
| Inside diameter | 35.2 mm | 1.3858 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 83,300 mm⁴ | 0.200129 in⁴ |
| Elastic modulus, Sₓ | 3,930 mm³ | 0.239823 in³ |
| Plastic modulus, Zₓ | 5,440 mm³ | 0.331969 in³ |
| Radius of gyration, rₓ | 13.8 mm | 0.543307 in |
| Distance to top fibre | 21.2 mm | 0.8346455 in |
| Distance to bottom fibre | 21.2 mm | 0.8346455 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 83,300 mm⁴ | 0.200129 in⁴ |
| Elastic modulus, S_y | 3,930 mm³ | 0.239823 in³ |
| Plastic modulus, Z_y | 5,440 mm³ | 0.331969 in³ |
| Radius of gyration, r_y | 13.8 mm | 0.543307 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 167,000 mm⁴ | 0.401219 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 3.44 kg/m | 2.3116 lb/ft |