HSS 18x8x1/2
Rectangular HSS from AISC Shapes Database v16.0. Also designated HSS457.2X203.2X12.7.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Height | 457 mm | 18 in |
| Width | 203 mm | 8 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 | 380,000,000 mm⁴ | 913 in⁴ |
| Elastic modulus, Sₓ | 1,660,000 mm³ | 101 in³ |
| Plastic modulus, Zₓ | 2,100,000 mm³ | 128 in³ |
| Radius of gyration, rₓ | 161 mm | 6.33 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 | 107,000,000 mm⁴ | 257 in⁴ |
| Elastic modulus, S_y | 1,050,000 mm³ | 64.2 in³ |
| Plastic modulus, Z_y | 1,190,000 mm³ | 72.5 in³ |
| Radius of gyration, r_y | 85.3 mm | 3.36 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 274,000,000 mm⁴ | 659 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 123 kg/m | 82.88 lb/ft |