HSS 18x18x5/16
Square HSS from AISC Shapes Database v16.0. Also designated HSS457.2X457.2X7.9.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Height | 457 mm | 18 in |
| Width | 457 mm | 18 in |
| Design wall thickness | 7.39 mm | 0.291 in |
| Nominal wall thickness | 7.95 mm | 0.3125 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 441,000,000 mm⁴ | 1,060 in⁴ |
| Elastic modulus, Sₓ | 1,930,000 mm³ | 118 in³ |
| Plastic modulus, Zₓ | 2,210,000 mm³ | 135 in³ |
| Radius of gyration, rₓ | 183 mm | 7.21 in |
| Distance to top fibre | 228.5 mm | 9 in |
| Distance to bottom fibre | 228.5 mm | 9 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 441,000,000 mm⁴ | 1,060 in⁴ |
| Elastic modulus, S_y | 1,930,000 mm³ | 118 in³ |
| Plastic modulus, Z_y | 2,210,000 mm³ | 135 in³ |
| Radius of gyration, r_y | 183 mm | 7.21 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 678,000,000 mm⁴ | 1,630 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 111 kg/m | 74.38 lb/ft |