Approximate Weights of Pipe Nipples
Pounds Per 100 Nipples
First Line – Standard Weight
Second Line – Extra Heavy Weight
| SIZE | CLO | 1 1/2 | 2 | 2 1/2 | 3 | 3 1/2 | 4 | 4 1/2 | 5 | 5 1/2 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 1/8 | 1 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 14 | 16 | 18 | 20 | 22 | 24 |
| 2 | 4 | 5 | 6 | 8 | 9 | 10 | 11 | 13 | 14 | 15 | 18 | 21 | 23 | 26 | 28 | 31 | |
| 1/4 | 2 | 4 | 6 | 8 | 10 | 11 | 13 | 15 | 17 | 18 | 20 | 20 | 24 | 27 | 31 | 34 | 38 |
| 3 | 6 | 8 | 10 | 12 | 15 | 17 | 19 | 21 | 24 | 26 | 30 | 35 | 39 | 44 | 48 | 53 | |
| 3/8 | 3 | 6 | 8 | 11 | 13 | 15 | 18 | 20 | 22 | 25 | 27 | 32 | 37 | 41 | 46 | 51 | 55 |
| 5 | 8 | 11 | 14 | 17 | 20 | 23 | 26 | 29 | 33 | 36 | 42 | 48 | 54 | 60 | 66 | 73 | |
| 1/2 | 5 | 8 | 11 | 15 | 18 | 22 | 25 | 29 | 32 | 36 | 39 | 46 | 54 | 61 | 68 | 75 | 82 |
| 7 | 11 | 15 | 20 | 24 | 29 | 33 | 38 | 42 | 47 | 51 | 60 | 69 | 78 | 88 | 97 | 106 | |
| 3/4 | 9 | — | 20 | 20 | 24 | 29 | 34 | 38 | 43 | 48 | 53 | 62 | 71 | 81 | 90 | 100 | 109 |
| 13 | — | 27 | 27 | 33 | 39 | 45 | 51 | 58 | 64 | 70 | 82 | 94 | 107 | 119 | 131 | 143 | |
| 1 | 15 | — | 22 | 29 | 36 | 43 | 50 | 57 | 64 | 71 | 78 | 92 | 106 | 120 | 134 | 148 | 162 |
| 21 | — | 30 | 39 | 48 | 57 | 66 | 75 | 84 | 93 | 102 | 121 | 139 | 157 | 175 | 193 | 211 | |
| 1 1/4 | 23 | — | 30 | 40 | 49 | 59 | 68 | 77 | 87 | 96 | 106 | 125 | 144 | 163 | 182 | 201 | 219 |
| 33 | — | 42 | 55 | 67 | 80 | 92 | 105 | 117 | 130 | 142 | 167 | 192 | 217 | 242 | 267 | 292 | |
| 1 1/2 | 27 | — | 33 | 44 | 55 | 67 | 78 | 89 | 101 | 112 | 123 | 146 | 169 | 191 | 214 | 237 | 259 |
| 41 | — | 48 | 63 | 76 | 93 | 109 | 124 | 139 | 154 | 169 | 199 | 230 | 260 | 290 | 320 | 351 | |
| 2 | 42 | — | — | 57 | 73 | 88 | 103 | 118 | 134 | 149 | 164 | 194 | 225 | 255 | 288 | 316 | 347 |
| 65 | — | — | 86 | 107 | 128 | 149 | 170 | 191 | 212 | 232 | 274 | 316 | 356 | 400 | 442 | 484 | |
| 2 1/2 | 77 | — | — | — | 101 | 125 | 149 | 174 | 198 | 222 | 246 | 294 | 342 | 391 | 439 | 487 | 536 |
| 116 | — | — | — | 148 | 180 | 212 | 244 | 275 | 307 | 339 | 403 | 467 | 531 | 595 | 658 | 722 | |
| 3 | 115 | — | — | — | 138 | 170 | 202 | 233 | 265 | 297 | 328 | 392 | 455 | 518 | 581 | 645 | 708 |
| 173 | — | — | — | 205 | 247 | 290 | 333 | 376 | 418 | 461 | 546 | 632 | 717 | 803 | 888 | 973 | |
| 3 1/2 | 150 | — | — | — | — | — | 244 | 282 | 320 | 358 | 396 | 472 | 548 | 624 | 700 | 776 | 851 |
| 227 | — | — | — | — | — | 358 | 410 | 462 | 514 | 566 | 670 | 775 | 879 | 983 | 1087 | 1192 | |
| 4 | 191 | — | — | — | — | — | 293 | 337 | 382 | 427 | 472 | 562 | 652 | 742 | 832 | 922 | 1012 |
| 292 | — | — | — | — | — | 432 | 495 | 557 | 619 | 681 | 807 | 932 | 1056 | 1181 | 1306 | 1431 | |
| 5 | 240 | — | — | — | — | — | — | 420 | 480 | 540 | 600 | 712 | 825 | 940 | 1055 | 1156 | 1260 |
| 395 | — | — | — | — | — | — | 651 | 706 | 822 | 909 | 1071 | 1235 | 1402 | 1568 | 1722 | 1876 | |
| 6 | 350 | — | — | — | — | — | — | 580 | 660 | 740 | 820 | 973 | 1125 | 1282 | 1440 | 1580 | 1720 |
| 600 | — | — | — | — | — | — | 940 | 1060 | 1180 | 1300 | 1533 | 1764 | 2002 | 2240 | 2460 | 2680 |