HSS 20x12x1/2
Rectangular HSS from AISC Shapes Database v16.0. Also designated HSS508X304.8X12.7.
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 | 11.8 mm | 0.465 in |
| Nominal wall thickness | 12.7 mm | 0.5 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 645,000,000 mm⁴ | 1,550 in⁴ |
| Elastic modulus, Sₓ | 2,540,000 mm³ | 155 in³ |
| Plastic modulus, Zₓ | 3,080,000 mm³ | 188 in³ |
| Radius of gyration, rₓ | 188 mm | 7.39 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 | 293,000,000 mm⁴ | 705 in⁴ |
| Elastic modulus, S_y | 1,920,000 mm³ | 117 in³ |
| Plastic modulus, Z_y | 2,160,000 mm³ | 132 in³ |
| Radius of gyration, r_y | 127 mm | 4.99 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 641,000,000 mm⁴ | 1,540 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 153 kg/m | 103.3 lb/ft |