HSS 18x18x3/8
Square HSS from AISC Shapes Database v16.0. Also designated HSS457.2X457.2X9.5.
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 | 8.86 mm | 0.349 in |
| Nominal wall thickness | 9.53 mm | 0.375 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 520,000,000 mm⁴ | 1,250 in⁴ |
| Elastic modulus, Sₓ | 2,280,000 mm³ | 139 in³ |
| Plastic modulus, Zₓ | 2,620,000 mm³ | 160 in³ |
| Radius of gyration, rₓ | 182 mm | 7.18 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 | 520,000,000 mm⁴ | 1,250 in⁴ |
| Elastic modulus, S_y | 2,280,000 mm³ | 139 in³ |
| Plastic modulus, Z_y | 2,620,000 mm³ | 160 in³ |
| Radius of gyration, r_y | 182 mm | 7.18 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 807,000,000 mm⁴ | 1,940 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 132 kg/m | 88.73 lb/ft |