Section B.2 Channels
Subsection B.2.1 Channel Section-US
| Description \(d \times \,W\) |
\(W\) lb/ft |
\(A\) \(\text{in}^2\) |
\(d\) in |
\(b_f\) in |
\(t_w\) in |
\(t_f\) in |
\(\bar{x}\) in |
\(\bar{I}_{xx}\) \(\text{in}^4\) |
\(\bar{I}_{yy}\) \(\text{in}^4\) |
| C15\(\times\)50 | 50 | 14.7 | 15 | 3.72 | 0.716 | 0.65 | 0.799 | 404 | 11 |
| C15\(\times\)40 | 40 | 11.8 | 15 | 3.52 | 0.52 | 0.65 | 0.778 | 348 | 9.17 |
| C15\(\times\)33.9 | 33.9 | 10 | 15 | 3.4 | 0.4 | 0.65 | 0.788 | 315 | 8.07 |
| C12\(\times\)30 | 30 | 8.81 | 12 | 3.17 | 0.51 | 0.501 | 0.674 | 162 | 5.12 |
| C12\(\times\)25 | 25 | 7.34 | 12 | 3.05 | 0.387 | 0.501 | 0.674 | 144 | 4.45 |
| C12\(\times\)20.7 | 20.7 | 6.08 | 12 | 2.94 | 0.282 | 0.501 | 0.698 | 129 | 3.86 |
| C10\(\times\)30 | 30 | 8.81 | 10 | 3.03 | 0.673 | 0.436 | 0.649 | 103 | 3.93 |
| C10\(\times\)25 | 25 | 7.35 | 10 | 2.89 | 0.526 | 0.436 | 0.617 | 91.1 | 3.34 |
| C10\(\times\)20 | 20 | 5.87 | 10 | 2.74 | 0.379 | 0.436 | 0.606 | 78.9 | 2.8 |
| C10\(\times\)15.3 | 15.3 | 4.48 | 10 | 2.6 | 0.24 | 0.436 | 0.634 | 67.3 | 2.27 |
| C9\(\times\)20 | 20 | 5.87 | 9 | 2.65 | 0.448 | 0.413 | 0.583 | 60.9 | 2.41 |
| C9\(\times\)15 | 15 | 4.4 | 9 | 2.49 | 0.285 | 0.413 | 0.586 | 51 | 1.91 |
| C9\(\times\)13.4 | 13.4 | 3.94 | 9 | 2.43 | 0.233 | 0.413 | 0.601 | 47.8 | 1.75 |
| C8\(\times\)18.75 | 18.75 | 5.51 | 8 | 2.53 | 0.487 | 0.39 | 0.565 | 43.9 | 1.97 |
| C8\(\times\)13.75 | 13.75 | 4.03 | 8 | 2.34 | 0.303 | 0.39 | 0.554 | 36.1 | 1.52 |
| C8\(\times\)11.5 | 11.5 | 3.37 | 8 | 2.26 | 0.22 | 0.39 | 0.572 | 32.5 | 1.31 |
| C7\(\times\)14.75 | 14.75 | 4.33 | 7 | 2.3 | 0.419 | 0.366 | 0.532 | 27.2 | 1.37 |
| C7\(\times\)12.25 | 12.25 | 3.59 | 7 | 2.19 | 0.314 | 0.366 | 0.525 | 24.2 | 1.16 |
| C7\(\times\)9.8 | 9.8 | 2.87 | 7 | 2.09 | 0.21 | 0.366 | 0.541 | 21.2 | 0.957 |
| C6\(\times\)13 | 13 | 3.82 | 6 | 2.16 | 0.437 | 0.343 | 0.514 | 17.3 | 1.05 |
| C6\(\times\)10.5 | 10.5 | 3.07 | 6 | 2.03 | 0.314 | 0.343 | 0.5 | 15.1 | 0.86 |
| C6\(\times\)8.2 | 8.2 | 2.39 | 6 | 1.92 | 0.2 | 0.343 | 0.512 | 13.1 | 0.687 |
| C5\(\times\)9 | 9 | 2.64 | 5 | 1.89 | 0.325 | 0.32 | 0.478 | 8.89 | 0.624 |
| C5\(\times\)6.7 | 6.7 | 1.97 | 5 | 1.75 | 0.19 | 0.32 | 0.484 | 7.48 | 0.47 |
| C4\(\times\)7.25 | 7.25 | 2.13 | 4 | 1.72 | 0.321 | 0.296 | 0.459 | 4.58 | 0.425 |
| C4\(\times\)6.25 | 6.25 | 1.84 | 4 | 1.65 | 0.247 | 0.296 | 0.453 | 4.19 | 0.374 |
| C4\(\times\)5.4 | 5.4 | 1.58 | 4 | 1.58 | 0.184 | 0.296 | 0.457 | 3.85 | 0.312 |
| C4\(\times\)4.5 | 4.5 | 1.34 | 4 | 1.52 | 0.125 | 0.296 | 0.473 | 3.53 | 0.265 |
| C3\(\times\)6 | 6 | 1.76 | 3 | 1.6 | 0.356 | 0.273 | 0.455 | 2.07 | 0.3 |
| C3\(\times\)5 | 5 | 1.47 | 3 | 1.5 | 0.258 | 0.273 | 0.439 | 1.85 | 0.241 |
| C3\(\times\)4.1 | 4.1 | 1.2 | 3 | 1.41 | 0.17 | 0.273 | 0.437 | 1.65 | 0.191 |
| C3\(\times\)3.5 | 3.5 | 1.09 | 3 | 1.37 | 0.132 | 0.273 | 0.443 | 1.57 | 0.169 |
Subsection B.2.2 Channel Section-SI
| Description \(d\times \,W\) |
\(W\) kg/m |
\(A\) \(\text{mm}^2\) |
\(d\) mm |
\(b_f\) mm |
\(t_w\) mm |
\(t_f\) mm |
\(\bar{x}\) mm |
\(\bar{I}_{xx}\) \(10^6 \text{ mm}^4\) |
\(\bar{I}_{yy}\) \(10^6 \text{ mm}^4\) |
| C380\(\times\)74 | 74 | 9480 | 381 | 94.5 | 18.2 | 16.5 | 20.3 | 168 | 4.58 |
| C380\(\times\)60 | 60 | 7610 | 381 | 89.4 | 13.2 | 16.5 | 19.8 | 145 | 3.82 |
| C380\(\times\)50.4 | 50.4 | 6450 | 381 | 86.4 | 10.2 | 16.5 | 20 | 131 | 3.36 |
| C310\(\times\)45 | 45 | 5680 | 305 | 80.5 | 13 | 12.7 | 17.1 | 67.4 | 2.13 |
| C310\(\times\)37 | 37 | 4740 | 305 | 77.5 | 9.83 | 12.7 | 17.1 | 59.9 | 1.85 |
| C310\(\times\)30.8 | 30.8 | 3920 | 305 | 74.7 | 7.16 | 12.7 | 17.7 | 53.7 | 1.61 |
| C250\(\times\)45 | 45 | 5680 | 254 | 77 | 17.1 | 11.1 | 16.5 | 42.9 | 1.64 |
| C250\(\times\)37 | 37 | 4740 | 254 | 73.4 | 13.4 | 11.1 | 15.7 | 37.9 | 1.39 |
| C250\(\times\)30 | 30 | 3790 | 254 | 69.6 | 9.63 | 11.1 | 15.4 | 32.8 | 1.17 |
| C250\(\times\)22.8 | 22.8 | 2890 | 254 | 66 | 6.1 | 11.1 | 16.1 | 28 | 0.945 |
| C230\(\times\)30 | 30 | 3790 | 229 | 67.3 | 11.4 | 10.5 | 14.8 | 25.3 | 1 |
| C230\(\times\)22 | 22 | 2840 | 229 | 63.2 | 7.24 | 10.5 | 14.9 | 21.2 | 0.795 |
| C230\(\times\)19.9 | 19.9 | 2540 | 229 | 61.7 | 5.92 | 10.5 | 15.3 | 19.9 | 0.728 |
| C200\(\times\)27.9 | 27.9 | 3550 | 203 | 64.3 | 12.4 | 9.91 | 14.4 | 18.3 | 0.82 |
| C200\(\times\)20.5 | 20.5 | 2600 | 203 | 59.4 | 7.7 | 9.91 | 14.1 | 15 | 0.633 |
| C200\(\times\)17.1 | 17.1 | 2170 | 203 | 57.4 | 5.59 | 9.91 | 14.5 | 13.5 | 0.545 |
| C180\(\times\)22 | 22 | 2790 | 178 | 58.4 | 10.6 | 9.3 | 13.5 | 11.3 | 0.57 |
| C180\(\times\)18.2 | 18.2 | 2320 | 178 | 55.6 | 7.98 | 9.3 | 13.3 | 10.1 | 0.483 |
| C180\(\times\)14.6 | 14.6 | 1850 | 178 | 53.1 | 5.33 | 9.3 | 13.7 | 8.82 | 0.398 |
| C150\(\times\)19.3 | 19.3 | 2460 | 152 | 54.9 | 11.1 | 8.71 | 13.1 | 7.2 | 0.437 |
| C150\(\times\)15.6 | 15.6 | 1980 | 152 | 51.6 | 7.98 | 8.71 | 12.7 | 6.29 | 0.358 |
| C150\(\times\)12.2 | 12.2 | 1540 | 152 | 48.8 | 5.08 | 8.71 | 13 | 5.45 | 0.286 |
| C130\(\times\)13 | 13 | 1700 | 127 | 48 | 8.26 | 8.13 | 12.1 | 3.7 | 0.26 |
| C130\(\times\)10.4 | 10.4 | 1270 | 127 | 44.5 | 4.83 | 8.13 | 12.3 | 3.11 | 0.196 |
| C100\(\times\)10.8 | 10.8 | 1370 | 102 | 43.7 | 8.15 | 7.52 | 11.7 | 1.91 | 0.177 |
| C100\(\times\)9.3 | 9.3 | 1190 | 102 | 41.9 | 6.27 | 7.52 | 11.5 | 1.74 | 0.156 |
| C100\(\times\)8 | 8 | 1020 | 102 | 40.1 | 4.67 | 7.52 | 11.6 | 1.6 | 0.13 |
| C100\(\times\)6.7 | 6.7 | 865 | 102 | 38.6 | 3.18 | 7.52 | 12 | 1.47 | 0.11 |
| C75\(\times\)8.9 | 8.9 | 1140 | 76.2 | 40.6 | 9.04 | 6.93 | 11.6 | 0.862 | 0.125 |
| C75\(\times\)7.4 | 7.4 | 948 | 76.2 | 38.1 | 6.55 | 6.93 | 11.2 | 0.77 | 0.1 |
| C75\(\times\)6.1 | 6.1 | 774 | 76.2 | 35.8 | 4.32 | 6.93 | 11.1 | 0.687 | 0.0795 |
| C75\(\times\)5.2 | 5.2 | 703 | 76.2 | 34.8 | 3.35 | 6.93 | 11.3 | 0.653 | 0.0703 |