HSS 18x8x1/4
Rectangular HSS from AISC Shapes Database v16.0. Also designated HSS457.2X203.2X6.4.
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 | 5.92 mm | 0.233 in |
| Nominal wall thickness | 6.35 mm | 0.25 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 205,000,000 mm⁴ | 492 in⁴ |
| Elastic modulus, Sₓ | 896,000 mm³ | 54.7 in³ |
| Plastic modulus, Zₓ | 1,110,000 mm³ | 67.7 in³ |
| Radius of gyration, rₓ | 164 mm | 6.47 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 | 58,700,000 mm⁴ | 141 in⁴ |
| Elastic modulus, S_y | 577,000 mm³ | 35.2 in³ |
| Plastic modulus, Z_y | 633,000 mm³ | 38.6 in³ |
| Radius of gyration, r_y | 87.9 mm | 3.46 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 146,000,000 mm⁴ | 351 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 63.8 kg/m | 42.84 lb/ft |