HS178×127×4.8
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 | 4.78 mm | 0.188189 in |
| Nominal wall thickness | 4.78 mm | 0.188189 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 12,400,000 mm⁴ | 29.7911 in⁴ |
| Elastic modulus, Sₓ | 140,000 mm³ | 8.5433 in³ |
| Plastic modulus, Zₓ | 168,000 mm³ | 10.252 in³ |
| Radius of gyration, rₓ | 67.1 mm | 2.6417 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 | 7,410,000 mm⁴ | 17.8026 in⁴ |
| Elastic modulus, S_y | 117,000 mm³ | 7.1398 in³ |
| Plastic modulus, Z_y | 133,000 mm³ | 8.1162 in³ |
| Radius of gyration, r_y | 51.8 mm | 2.0394 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 14,700,000 mm⁴ | 35.3169 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 21.7 kg/m | 14.6 lb/ft |