HS178×127×6.4
Rectangular 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 |
|---|---|---|
| Height | 177.8 mm | 7 in |
| Width | 127 mm | 5 in |
| Design wall thickness | 6.35 mm | 0.25 in |
| Nominal wall thickness | 6.35 mm | 0.25 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 15,800,000 mm⁴ | 37.9597 in⁴ |
| Elastic modulus, Sₓ | 178,000 mm³ | 10.8622 in³ |
| Plastic modulus, Zₓ | 216,000 mm³ | 13.1811 in³ |
| Radius of gyration, rₓ | 66.2 mm | 2.6063 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 | 9,400,000 mm⁴ | 22.5836 in⁴ |
| Elastic modulus, S_y | 148,000 mm³ | 9.0315 in³ |
| Plastic modulus, Z_y | 171,000 mm³ | 10.4351 in³ |
| Radius of gyration, r_y | 51.1 mm | 2.0118 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 19,000,000 mm⁴ | 45.6477 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 28.3 kg/m | 19 lb/ft |