CHS 101.6×6.3
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 | 6.3 mm | 0.248031 in |
| Outside diameter | 101.6 mm | 4 in |
| Inside diameter | 89 mm | 3.5039 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 2,150,000 mm⁴ | 5.1654 in⁴ |
| Elastic modulus, Sₓ | 42,300 mm³ | 2.5813 in³ |
| Plastic modulus, Zₓ | 57,300 mm³ | 3.4967 in³ |
| Radius of gyration, rₓ | 33.8 mm | 1.3307 in |
| Distance to top fibre | 50.8 mm | 2 in |
| Distance to bottom fibre | 50.8 mm | 2 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 2,150,000 mm⁴ | 5.1654 in⁴ |
| Elastic modulus, S_y | 42,300 mm³ | 2.5813 in³ |
| Plastic modulus, Z_y | 57,300 mm³ | 3.4967 in³ |
| Radius of gyration, r_y | 33.8 mm | 1.3307 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 4,300,000 mm⁴ | 10.3308 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 14.8 kg/m | 9.9451 lb/ft |