HSS 20x8x7/8
Rectangular HSS from AISC Shapes Database v16.0. Also designated HSS508X203.2X22.2.
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 | 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 | 783,000,000 mm⁴ | 1,880 in⁴ |
| Elastic modulus, Sₓ | 3,080,000 mm³ | 188 in³ |
| Plastic modulus, Zₓ | 4,030,000 mm³ | 246 in³ |
| Radius of gyration, rₓ | 171 mm | 6.74 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 | 180,000,000 mm⁴ | 432 in⁴ |
| Elastic modulus, S_y | 1,770,000 mm³ | 108 in³ |
| Plastic modulus, Z_y | 2,080,000 mm³ | 127 in³ |
| Radius of gyration, r_y | 82.3 mm | 3.24 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 499,000,000 mm⁴ | 1,200 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 223 kg/m | 149.61 lb/ft |