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Mooring Chain

length of mooring chain
CHAIN SIZE
 DIMENSIONS TEST REQUIREMENTS
NO. OF LINKS PER 90 FT
LINK LENGTH A
LINK LENGTH B
LENGTH OF 5 LINKS (C)
WEIGHT PER 90′(APPX.)
 GRADE 1 GRADE 2 GRADE 3 OIL QUALITY
IN. MM PROOF LOAD BREAK LOAD PROOF LOAD BREAK LOAD PROOF LOAD BREAK LOAD PROOF LOAD BREAK LOAD
5/8″ 16 3-3/4″ 2-1/3″ 13-3/4″ 365 16620 23745 23745 33220 33220 47465 432
3/4″ 19 4-1/2″ 2-5/8″ 16-1/2″ 480 23800 34000 34000 47600 47600 68000 357
13/16″ 20 4-7/8″ 2-7/8″ 17-7/8″ 570 27800 39800 39800 55700 55700 79500 329
7/8″ 22 5-1/4″ 3-1/8″ 19-1/4″ 660 32200 46000 46000 64400 64400 91800 305
15/16″ 24 5-5/8″ 3-5/16″ 20-5/8″ 760 36800 52600 52600 73700 73700 105000 285
1″ 25 6″ 3-9/16″ 22″ 860 41800 59700 59700 83600 83600 119500 84000 129000 267
1-1/16″ 27 6-3/8″ 3-3/34″ 23-3/8″ 970 47000 67200 67200 94100 94100 135000 251
1-1/8″ 29 6-3/8″ 4″ 24-3/4″ 1080 52600 75000 75000 105000 105000 150000 106000 161000 237
1-3/16″ 30 7-1/8″ 4-1/4″ 26-1/8″ 1220 58400 83400 83400 116500 116500 167000 225
1-1/4″ 32 7-1/2″ 4-1/2″ 27-1/2″ 1350 64500 92200 92200 129000 129000 184000 130000 198000 213
1-5/16″ 33 7-7/8″ 4-3/4″ 28-7/8″ 1490 70900 101500 101500 142000 142000 203000 203
1-3/8″ 34 8-1/4″ 4-15/16″ 30-1/4″ 1630 77500 111000 111000 155000 155000 222000 157000 190000 195
1-7/16″ 36 8-5/8″ 5-3/16″ 31-5/8″ 1780 84500 120500 120500 169000 169000 241000 187
1-1/2″ 38 9″ 5-3/8″ 33″ 1940 91700 131000 131000 183500 183500 262000 185000 235000 179
1-9/16″ 40 9-3/8″ 5-5/8″ 34-3/8″ 2090 99200 142000 142000 198500 198500 284000 171
1-5/8″ 42 9-3/4″ 5-7/8″ 35-3/4″ 2240 108000 153000 153000 214000 214000 306000 216000 280000 165
1-11/16″ 43 10-1/8″ 6-1/16″ 37-1/8″ 2410 115000 166500 166500 229000 229000 327000 159
1-3/4″ 44 10-1/2″ 6-5/16″ 38-1/2″ 2590 123500 176000 176000 247000 247000 352000 249000 380000 153
1-13/16″ 46 10-7/8″ 6-1/2″ 39-7/8″ 2790 132000 188500 188500 264000 264000 377000 147
1-7/8″ 48 11-1/4″ 6-3/4″ 41-1/4″ 2980 140500 20100 20100 281000 281000 402000 285000 432000 143
1-15/16″ 50 11-5/8″ 7″ 42-5/8″ 3180 149500 214000 214000 299000 299000 427000 139
2″ 51 12″ 7-3/16″ 44″ 3360 159000 227000 227000 318000 318000 454000 322000 488000 133
2-1/16″ 52 12-3/8″ 7-7/16″ 45-3/8″ 3570 168500 241000 241000 337000 337000 482000 342000 518000 129
2-1/8″ 54 12-3/4″ 7-5/8″ 46-3/4″ 3790 178500 255000 255000 357000 357000 510000 362000 548000 125
2-3/16″ 56 13-1/8″ 7-7/8″ 48-1/8″ 4020 188500 269000 269000 377000 377000 538000 382500 579100 123
2-1/4″ 58 13-1/2″ 8-1/8″ 49-1/2″ 4250 198500 284000 284000 396000 396000 570000 403000 610000 119
2-5/16″ 59 13-7/8″ 8-5/16″ 50-7/8″ 4490 209000 299000 299000 418000 418000 598000 425000 642500 117
2-3/8″ 60 14-1/4″ 8-9/16″ 52-1/4″ 4730 212000 314000 314000 440000 440000 628000 447000 675000 113
2-7/16″ 62 14-5/8″ 8-3/14″ 53-5/8″ 4960 231000 330000 330000 462000 462000 660 469500 709500 111
2-1/2″ 64 15″ 9″ 55″ 5270 242000 346000 346000 484000 484000 692 492000 744000 107
2-9/16″ 66 15-3/8″ 9-1/4″ 56-3/8″ 5540 254000 363000 363000 507000 507000 726 516000 778500 105
2-5/8″ 67 15-3/4″ 9-7/16″ 57-3/4″ 5820 265000 379000 379000 530000 530000 758 540000 813000 103
2-11/16″ 68 16-1/8″ 9-11/16″ 59-1/8″ 6110 277000 396000 396000 554000 554000 792 565000 849000 99
2-3/4″ 70 16-1/2″ 9-7/8″ 60-1/2″ 6410 289000 413000 413000 578000 578000 826 590000 885000 97
2-13/16″ 71 16-7/8″ 10-1/8″ 61-7/8″ 6710 301000 431000 431000 603000 603000 861 615000 925000 95
2-7/8″ 73 17-1/4″ 10-3/8″ 63-1/4″ 7020 314000 449000 449000 628000 628000 897 640000 965000 93
2-15/16″ 75 17-5/8″ 10-9/16″ 64-5/8″ 7330 327000 467000 467000 654000 654000 934 666500 1005000 91
3″ 76 18″ 10-3/16″ 66″ 7650 340000 485000 485000 679000 679000 970 693000 1045000 89
3-1/16″ 78 18-3/8″ 11″ 67-3/8″ 7980 353000 504000 504000 705000 705000 1008 720500 1086500 87
3-1/8″ 79 18-3/4″ 11-1/4″ 68-3/4″ 8320 366000 523000 523000 732000 732000 1046 748000 1128000 85
3-3/16″ 81 19-1/8″ 11-1/2″ 70-1/8″ 8660 380000 542000 542000 759000 759000 1084 776050 1169000 84
3-1/4″ 83 19-1/2″ 11-11/16″ 71-1/2″ 9010 393000 562000 562000 787000 787000 1124 804100 1210000 83
3-5/16″ 84 19-7/8″ 11-15/16″ 72-7/8″ 9360 407000 582000 582000 814000 814000 1163 833150 1253000 81
3-3/8″ 86 20-1/4″ 12-1/8″ 74-1/4″ 9730 421000 602000 602000 843000 843000 1204 862200 1296000 79
3-7/16″ 87 20-5/8″ 12-3/8″ 75-5/8″ 10100 435000 622000 622000 871000 871000 1244 892100 1339550 77
3-1/2″ 90 21″ 12-5/8″ 77″ 10500 450000 643000 643000 900000 900000 1285 922000 1383100 75
3-5/8″ 92 21-3/4″ 12-15/16″ 79-3/4″ 11300 479000 685000 685000 958000 958000 1369 1021000 1566000 73
3-3/4″ 95 22-1/2″ 13-3/8″ 82-1/2″ 12000 509000 728000 728000 1019000 1019000 1455 1120000 1750000 71
3-7/8″ 98 23-1/4″ 14″ 85-1/4″ 12900 540000 772000 772000 1080000 1080000 1543 1205000 1863000 69
4″ 102 24″ 14-3/8″ 88″ 13700 571000 816000 816000 1143000 1143000 1632 1298000 1996500 67