HA168×6.4
Round HSS from CISC Structural Section Tables SST12.1.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Design wall thickness | 5.72 mm | 0.225197 in |
| Nominal wall thickness | 6.35 mm | 0.25 in |
| Outside diameter | 168.3 mm | 6.626 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 9,660,000 mm⁴ | 23.2082 in⁴ |
| Elastic modulus, Sₓ | 115,000 mm³ | 7.0177 in³ |
| Plastic modulus, Zₓ | 151,000 mm³ | 9.2146 in³ |
| Radius of gyration, rₓ | 57.5 mm | 2.2638 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 | 9,660,000 mm⁴ | 23.2082 in⁴ |
| Elastic modulus, S_y | 115,000 mm³ | 7.0177 in³ |
| Plastic modulus, Z_y | 151,000 mm³ | 9.2146 in³ |
| Radius of gyration, r_y | 57.5 mm | 2.2638 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 19,300,000 mm⁴ | 46.3684 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 25.4 kg/m | 17 lb/ft |