Mass and Breaking Force for 6X21F (12-6F-6-1) Construction Ropes.
Nominal Rope Dia. | Approx Mass of Rope | Minimum Breaking Force corresponding to Rope Grade of | ||||||
1570 | 1770 | 1960 | ||||||
FIBRE CORE | STEEL CORE | FIBRE CORE | STEEL CORE | FIBRE CORE | STEEL CORE | FIBRE CORE | STEEL CORE | |
(CF) | (CWR) | (CF) | (CWR) | (CF) | (CWR) | (CF) | (CWR) | |
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) |
mm | Kg/100Mtr | KN | KN | KN | KN | KN | KN | |
8 | 24.3 | 26.8 | 34 | 37 | 38 | 41 | 42 | 46 |
9 | 30.8 | 33.9 | 43 | 46 | 48 | 52 | 54 | 58 |
10 | 38.0 | 41.8 | 53 | 57 | 60 | 65 | 66 | 71 |
11 | 46.0 | 50.6 | 64 | 69 | 72 | 78 | 80 | 86 |
12 | 54.7 | 60.2 | 76 | 82 | 86 | 93 | 95 | 103 |
13 | 64.3 | 70.7 | 90 | 97 | 101 | 109 | 112 | 121 |
14 | 74.5 | 82 | 104 | 112 | 117 | 127 | 130 | 140 |
15 | 85.5 | 94 | 119 | 129 | 134 | 145 | 149 | 161 |
16 | 97.3 | 107 | 136 | 147 | 153 | 165 | 169 | 183 |
18 | 123 | 135 | 172 | 186 | 194 | 209 | 214 | 232 |
19 | 137 | 151 | 191 | 207 | 216 | 233 | 239 | 258 |
20 | 152 | 167 | 212 | 229 | 239 | 258 | 265 | 286 |
22 | 184 | 202 | 257 | 277 | 289 | 312 | 320 | 346 |
24 | 219 | 241 | 305 | 330 | 344 | 372 | 381 | 412 |
25 | 238 | 261 | 331 | 358 | 374 | 403 | 414 | 447 |
26 | 257 | 283 | 358 | 387 | 404 | 436 | 447 | 483 |
28 | 298 | 328 | 416 | 449 | 469 | 506 | 519 | 560 |
29 | 320 | 352 | 446 | 482 | 503 | 543 | 557 | 601 |
30 | 342 | 376 | 477 | 515 | 538 | 581 | 596 | 643 |
31 | 365 | 402 | 510 | 550 | 574 | 620 | 636 | 687 |
32 | 389 | 428 | 543 | 586 | 612 | 661 | 678 | 732 |
34 | 440 | 483 | 613 | 662 | 691 | 746 | 765 | 826 |
35 | 466 | 512 | 649 | 701 | 732 | 791 | 811 | 876 |
36 | 493 | 542 | 687 | 742 | 775 | 837 | 858 | 926 |
38 | 549 | 604 | 766 | 827 | 863 | 932 | 956 | 1032 |
40 | 608 | 669 | 848 | 916 | 956 | 1033 | 1059 | 1144 |
NOTE:- To Calculate the Aggregate Breaking Force, Multiply the figures given in col 4,6 and 8 by 1.163 and in col 5,7 and 9 by 1.25. 1) Wire Strand Core ( CWS) may be used for Rope diameter 12mm and below. |