HSS 18x8x3/8
Rectangular HSS from AISC Shapes Database v16.0. Also designated HSS457.2X203.2X9.5.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Height | 457 mm | 18 in |
| Width | 203 mm | 8 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 | 296,000,000 mm⁴ | 711 in⁴ |
| Elastic modulus, Sₓ | 1,290,000 mm³ | 79 in³ |
| Plastic modulus, Zₓ | 1,620,000 mm³ | 98.7 in³ |
| Radius of gyration, rₓ | 163 mm | 6.4 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 | 84,100,000 mm⁴ | 202 in⁴ |
| Elastic modulus, S_y | 828,000 mm³ | 50.5 in³ |
| Plastic modulus, Z_y | 919,000 mm³ | 56.1 in³ |
| Radius of gyration, r_y | 86.6 mm | 3.41 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 212,000,000 mm⁴ | 510 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 94.1 kg/m | 63.21 lb/ft |