Pipe18STD
Pipe sections from AISC Shapes Database v16.0. Also designated Pipe450STD.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Design wall thickness | 8.86 mm | 0.349 in |
| Nominal wall thickness | 9.53 mm | 0.375 in |
| Outside diameter | 457 mm | 18 in |
| Inside diameter | 439 mm | 17.3 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 315,000,000 mm⁴ | 756 in⁴ |
| Elastic modulus, Sₓ | 1,380,000 mm³ | 84 in³ |
| Plastic modulus, Zₓ | 1,790,000 mm³ | 109 in³ |
| Radius of gyration, rₓ | 158 mm | 6.24 in |
| Distance to top fibre | 228.5 mm | 9 in |
| Distance to bottom fibre | 228.5 mm | 9 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 315,000,000 mm⁴ | 756 in⁴ |
| Elastic modulus, S_y | 1,380,000 mm³ | 84 in³ |
| Plastic modulus, Z_y | 1,790,000 mm³ | 109 in³ |
| Radius of gyration, r_y | 158 mm | 6.24 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 628,000,000 mm⁴ | 1,510 in⁴ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 105 kg/m | 70.7 lb/ft |