HSS 20x12x7/8
Rectangular HSS from AISC Shapes Database v16.0. Also designated HSS508X304.8X22.2.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Height | 508 mm | 20 in |
| Width | 305 mm | 12 in |
| Design wall thickness | 20.7 mm | 0.814 in |
| Nominal wall thickness | 22.2 mm | 0.875 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 1.03000e+9 mm⁴ | 2,480 in⁴ |
| Elastic modulus, Sₓ | 4,060,000 mm³ | 248 in³ |
| Plastic modulus, Zₓ | 5,050,000 mm³ | 308 in³ |
| Radius of gyration, rₓ | 183 mm | 7.2 in |
| Distance to top fibre | 254 mm | 10 in |
| Distance to bottom fibre | 254 mm | 10 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 462,000,000 mm⁴ | 1,110 in⁴ |
| Elastic modulus, S_y | 3,050,000 mm³ | 186 in³ |
| Plastic modulus, Z_y | 3,540,000 mm³ | 216 in³ |
| Radius of gyration, r_y | 123 mm | 4.83 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 1.05000e+9 mm⁴ | 2,530 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 258 kg/m | 173.43 lb/ft |