HSS 20x12x5/16
Rectangular HSS from AISC Shapes Database v16.0. Also designated HSS508X304.8X7.9.
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 | 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 | 420,000,000 mm⁴ | 1,010 in⁴ |
| Elastic modulus, Sₓ | 1,660,000 mm³ | 101 in³ |
| Plastic modulus, Zₓ | 2,000,000 mm³ | 122 in³ |
| Radius of gyration, rₓ | 190 mm | 7.48 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 | 193,000,000 mm⁴ | 464 in⁴ |
| Elastic modulus, S_y | 1,270,000 mm³ | 77.3 in³ |
| Plastic modulus, Z_y | 1,410,000 mm³ | 85.8 in³ |
| Radius of gyration, r_y | 129 mm | 5.07 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 415,000,000 mm⁴ | 997 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 97.9 kg/m | 65.87 lb/ft |