S18x54.7
American standard beams from AISC Shapes Database v16.0. Also designated S460X81.4.
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 457 mm | 18 in |
| Flange width, b_f | 152 mm | 6 in |
| Web thickness, t_w | 11.7 mm | 0.461 in |
| Flange thickness, t_f | 17.6 mm | 0.691 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 333,000,000 mm⁴ | 801 in⁴ |
| Elastic modulus, Sₓ | 1,460,000 mm³ | 89 in³ |
| Plastic modulus, Zₓ | 1,700,000 mm³ | 104 in³ |
| Radius of gyration, rₓ | 180 mm | 7.07 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 | 8,620,000 mm⁴ | 20.7 in⁴ |
| Elastic modulus, S_y | 113,000 mm³ | 6.91 in³ |
| Plastic modulus, Z_y | 198,000 mm³ | 12.1 in³ |
| Radius of gyration, r_y | 29 mm | 1.14 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 970,000 mm⁴ | 2.33 in⁴ |
| Warping constant, C_w | 4.16000e+11 mm⁶ | 1,550 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 81.4 kg/m | 54.7 lb/ft |