HSS 18x18x5/8
Square HSS from AISC Shapes Database v16.0. Also designated HSS457.2X457.2X15.9.
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 | 14.8 mm | 0.581 in |
| Nominal wall thickness | 15.9 mm | 0.625 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 824,000,000 mm⁴ | 1,980 in⁴ |
| Elastic modulus, Sₓ | 3,610,000 mm³ | 220 in³ |
| Plastic modulus, Zₓ | 4,210,000 mm³ | 257 in³ |
| Radius of gyration, rₓ | 180 mm | 7.07 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 | 824,000,000 mm⁴ | 1,980 in⁴ |
| Elastic modulus, S_y | 3,610,000 mm³ | 220 in³ |
| Plastic modulus, Z_y | 4,210,000 mm³ | 257 in³ |
| Radius of gyration, r_y | 180 mm | 7.07 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 1.30000e+9 mm⁴ | 3,120 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 215 kg/m | 144.39 lb/ft |