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圓管-圓形鋼管每米理論重量
| 單位：Ｋg/m | ||||||||
|
3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | |
| 32 | 2.146 | 2.460 | 2.762 | 3.052 | 3.329 | 3.594 | 3.847 | |
| 38 | 2.589 | 2.978 | 3.354 | 3.718 | 4.069 | 4.408 | 4.735 | |
| 42 | 2.885 | 3.323 | 3.749 | 4.162 | 4.562 | 4.951 | 5.327 | |
| 45 | 3.107 | 3.582 | 4.044 | 4.495 | 4.932 | 5.358 | 5.771 | |
| 50 | 3.477 | 4.014 | 4.538 | 5.049 | 5.549 | 6.036 | 6.511 | |
| 54 | 3.773 | 4.359 | 4.932 | 5.493 | 6.042 | 6.578 | 7.103 | |
| 57 | 3.995 | 4.618 | 5.228 | 5.826 | 6.412 | 6.985 | 7.546 | |
| 60 | 4.217 | 4.877 | 5.524 | 6.159 | 6.782 | 7.392 | 7.990 | |
| 63.5 | 4.476 | 5.179 | 5.869 | 6.548 | 7.214 | 7.867 | 8.508 | |
| 68 | 4.809 | 5.567 | 6.313 | 7.047 | 7.768 | 8.477 | 9.174 | |
| 70 | 4.957 | 5.740 | 6.511 | 7.269 | 8.015 | 8.749 | 9.470 | |
| 73 | 5.179 | 5.999 | 6.807 | 7.602 | 8.385 | 9.156 | 9.914 | |
| 76 | 5.401 | 6.258 | 7.103 | 7.935 | 8.755 | 9.563 | 10.358 | |
| 89 | 6.363 | 7.380 | 8.385 | 9.378 | 10.358 | 11.326 | 12.281 | |
| 108 | 7.768 | 9.020 | 10.259 | 11.486 | 12.701 | 13.903 | 15.093 | |
| 133 | 11.178 | 12.725 | 14.261 | 15.783 | 17.294 | 18.792 | ||
| 159 | 13.422 | 15.290 | 17.146 | 18.989 | 20.821 | 22.639 | ||
| 219 | 18.601 | 21.209 | 23.805 | 26.388 | 28.959 | 31.517 | ||
| 273 | 23.262 | 26.536 | 29.797 | 33.046 | 36.283 | 39.508 | ||
| 325 | 27.750 | 31.665 | 35.568 | 39.458 | 43.337 | 47.202 | ||
| 355 | 38.897 | 43.158 | 47.406 | 51.641 | ||||
| 377 | 41.339 | 45.871 | 50.390 | 54.897 | ||||
| 426 | 46.777 | 51.913 | 57.036 | 62.147 | ||||
| 450 | ||||||||
| 480 | ||||||||
| 530 | ||||||||
| 630 |
| ||