168×6.4 CHS
Circular hollow sections from Australian-Sections.xlsx (Sheets 1-19).
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness, t | 6.4 mm | 0.251969 in |
| Outside diameter | 168.3 mm | 6.626 in |
| Inside diameter | 155.5 mm | 6.122 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 10,700,000 mm⁴ | 25.7069 in⁴ |
| Elastic modulus, Sₓ | 127,153.892 mm³ | 7.7594 in³ |
| Plastic modulus, Zₓ | 168,000 mm³ | 10.252 in³ |
| Radius of gyration, rₓ | 57.2906 mm | 2.2555 in |
| Distance to top fibre | 84.15 mm | 3.313 in |
| Distance to bottom fibre | 84.15 mm | 3.313 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 10,700,000 mm⁴ | 25.7069 in⁴ |
| Elastic modulus, S_y | 127,153.892 mm³ | 7.7594 in³ |
| Plastic modulus, Z_y | 168,000 mm³ | 10.252 in³ |
| Radius of gyration, r_y | 57.2906 mm | 2.2555 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 21,400,000 mm⁴ | 51.4137 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 25.591 kg/m | 17.1964 lb/ft |