HSS 20x12x3/8
Rectangular HSS from AISC Shapes Database v16.0. Also designated HSS508X304.8X9.5.
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 | 8.86 mm | 0.349 in |
| Nominal wall thickness | 9.53 mm | 0.375 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 499,000,000 mm⁴ | 1,200 in⁴ |
| Elastic modulus, Sₓ | 1,970,000 mm³ | 120 in³ |
| Plastic modulus, Zₓ | 2,360,000 mm³ | 144 in³ |
| Radius of gyration, rₓ | 189 mm | 7.45 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 | 228,000,000 mm⁴ | 547 in⁴ |
| Elastic modulus, S_y | 1,490,000 mm³ | 91.1 in³ |
| Plastic modulus, Z_y | 1,670,000 mm³ | 102 in³ |
| Radius of gyration, r_y | 128 mm | 5.04 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 491,000,000 mm⁴ | 1,180 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 117 kg/m | 78.52 lb/ft |