HS178×9.5
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 | 9.53 mm | 0.375197 in |
| Nominal wall thickness | 9.53 mm | 0.375197 in |
| Outside diameter | 177.8 mm | 7 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 17,900,000 mm⁴ | 43.0049 in⁴ |
| Elastic modulus, Sₓ | 201,000 mm³ | 12.2658 in³ |
| Plastic modulus, Zₓ | 270,000 mm³ | 16.4764 in³ |
| Radius of gyration, rₓ | 59.6 mm | 2.3465 in |
| Distance to top fibre | 88.9 mm | 3.5 in |
| Distance to bottom fibre | 88.9 mm | 3.5 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 17,900,000 mm⁴ | 43.0049 in⁴ |
| Elastic modulus, S_y | 201,000 mm³ | 12.2658 in³ |
| Plastic modulus, Z_y | 270,000 mm³ | 16.4764 in³ |
| Radius of gyration, r_y | 59.6 mm | 2.3465 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 35,800,000 mm⁴ | 86.0098 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 39.5 kg/m | 26.6 lb/ft |