HSS 20x8x5/16
Rectangular HSS from AISC Shapes Database v16.0. Also designated HSS508X203.2X7.9.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Height | 508 mm | 20 in |
| Width | 203 mm | 8 in |
| Design wall thickness | 7.39 mm | 0.291 in |
| Nominal wall thickness | 7.94 mm | 0.3125 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 327,000,000 mm⁴ | 786 in⁴ |
| Elastic modulus, Sₓ | 1,290,000 mm³ | 78.6 in³ |
| Plastic modulus, Zₓ | 1,620,000 mm³ | 98.6 in³ |
| Radius of gyration, rₓ | 180 mm | 7.07 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 | 78,700,000 mm⁴ | 189 in⁴ |
| Elastic modulus, S_y | 777,000 mm³ | 47.4 in³ |
| Plastic modulus, Z_y | 852,000 mm³ | 52 in³ |
| Radius of gyration, r_y | 88.1 mm | 3.47 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 206,000,000 mm⁴ | 496 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 85.3 kg/m | 57.36 lb/ft |