HSS 18x18x1/2
Square HSS from AISC Shapes Database v16.0. Also designated HSS457.2X457.2X12.7.
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 | 11.8 mm | 0.465 in |
| Nominal wall thickness | 12.7 mm | 0.5 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 678,000,000 mm⁴ | 1,630 in⁴ |
| Elastic modulus, Sₓ | 2,970,000 mm³ | 181 in³ |
| Plastic modulus, Zₓ | 3,440,000 mm³ | 210 in³ |
| Radius of gyration, rₓ | 181 mm | 7.13 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 | 678,000,000 mm⁴ | 1,630 in⁴ |
| Elastic modulus, S_y | 2,970,000 mm³ | 181 in³ |
| Plastic modulus, Z_y | 3,440,000 mm³ | 210 in³ |
| Radius of gyration, r_y | 181 mm | 7.13 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 1.06000e+9 mm⁴ | 2,540 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 174 kg/m | 116.91 lb/ft |