HSS 20x12x5/8
Rectangular HSS from AISC Shapes Database v16.0. Also designated HSS508X304.8X15.9.
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 | 14.8 mm | 0.581 in |
| Nominal wall thickness | 15.9 mm | 0.625 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 783,000,000 mm⁴ | 1,880 in⁴ |
| Elastic modulus, Sₓ | 3,080,000 mm³ | 188 in³ |
| Plastic modulus, Zₓ | 3,770,000 mm³ | 230 in³ |
| Radius of gyration, rₓ | 186 mm | 7.33 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 | 354,000,000 mm⁴ | 851 in⁴ |
| Elastic modulus, S_y | 2,330,000 mm³ | 142 in³ |
| Plastic modulus, Z_y | 2,650,000 mm³ | 162 in³ |
| Radius of gyration, r_y | 125 mm | 4.93 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 787,000,000 mm⁴ | 1,890 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 189 kg/m | 127.37 lb/ft |