HA178×127×6.4
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 | 5.72 mm | 0.225197 in |
| Nominal wall thickness | 6.35 mm | 0.25 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 14,500,000 mm⁴ | 34.8364 in⁴ |
| Elastic modulus, Sₓ | 163,000 mm³ | 9.9469 in³ |
| Plastic modulus, Zₓ | 197,000 mm³ | 12.0217 in³ |
| Radius of gyration, rₓ | 66.6 mm | 2.622 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 | 8,630,000 mm⁴ | 20.7337 in⁴ |
| Elastic modulus, S_y | 136,000 mm³ | 8.2992 in³ |
| Plastic modulus, Z_y | 156,000 mm³ | 9.5197 in³ |
| Radius of gyration, r_y | 51.4 mm | 2.0236 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 17,300,000 mm⁴ | 41.5634 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 28.3 kg/m | 19 lb/ft |