chain size link length a link width b length over 5 linksC grip radius d Weight Per 15- fathom shot (approx.) no of links Per 15- fathom shot grade 1 grade 2 grade 3
inches mm Proof test break test Proof test break test Proof test break test
1/2 13 3 1-13/16 13 21/64 225 535 10685 15275 15275 21930 21930 30555
5/8 16 3-3/4 2-1/4 13-3/4 3/8 365 432 16620 23745 23745 33220 33220 47465
3/4 19 4-1/2 2-5/8 16-1/2 1/2 480 357 23800 34000 34000 47600 47600 68000
13/16 20 4-7/8 2-7/8 17-7/8 17/32 570 329 27800 39800 39800 55700 55700 79500
7/8 22 5-1/4 3-1/8 19-1/4 37/64 660 305 32200 46000 46000 64400 64400 91800
15/16 24 5-5/8 3-5/16 20-5/8 5/8 760 285 36800 52600 52600 73700 73700 105000
1 25 6 3-9/16 22 21/32 860 267 41800 59700 59700 83600 83600 119500
1-1/16 27 6-3/8 3-3/4 23-3/8 11/16 970 251 47000 67200 67200 94100 94100 135000
1-1/8 28 6-3/4 4 24-3/4 25/32 1080 237 52600 75000 75000 105000 105000 150000
1-3/16 30 7-1/8 4-1/4 26-1/8 25/32 1220 225 58400 83400 83400 116500 116500 167000
1-1/4 32 7-1/2 4-1/2 27-1/2 25/32 1350 213 64500 92200 92200 129000 129000 184000
1-5/16 33 7-7/8 4-3/4 28-7/8 7/8 1490 203 70900 101500 101500 142000 142000 203000
1-3/8 34 8-1/4 4-15/16 30-1/4 7/8 1630 195 77500 111000 111000 155000 155000 222000
1-7/16 36 8-5/8 5-3/16 31-5/8 15/16 1780 187 84500 120500 120500 169000 169000 241000
1-1/2 38 9 5-3/8 33 63/64 1940 179 91700 131000 131000 183500 183500 262000
1-9/16 40 9-3/8 5-5/8 34-3/8 1-1/32 2090 171 99200 142000 142000 198500 198500 284000
1-5/8 42 9-3/4 5-7/8 35-3/4 1-1/16 2240 165 108000 153000 153000 214000 214000 306000
1-11/16 43 10-1/8 6-1/16 37-1/8 1-3/32 2410 159 115000 166500 166500 229000 229000 327000
1-3/4 44 10-1/2 6-5/16 38-1/2 1-5/32 2590 153 123500 176000 176000 247000 247000 352000
1-13/16 46 10-7/8 6-1/2 39-7/8 1-3/16 2790 147 132000 188500 188500 264000 264000 377000
1-7/8 48 11-1/4 6-3/4 41-1/4 1-1/4 2980 143 140500 201000 201000 281000 281000 402000
1-15/16 50 11-5/8 7 42-5/8 1-9/32 3180 139 149500 214000 214000 299000 299000 427000
2 51 12 7-3/16 44 1-5/16 3360 133 159000 227000 227000 318000 318000 454000
2-1/16 52 12-3/8 7-7/16 45-3/8 1-3/8 3570 129 168500 241000 241000 337000 337000 482000
2-1/8 54 12-3/4 7-5/8 46-3/4 1-27/64 3790 125 178500 255000 255000 357000 357000 510000
2-3/16 56 13-1/8 7-7/8 48-1/8 1-15/32 4020 123 188500 269000 269000 377000 377000 538000
2-1/4 58 13-1/2 8-1/8 49-1/2 1-1/2 4250 119 198500 284000 284000 396000 396000 570000
2-5/16 59 13-7/8 8-5/16 50-7/8 1-17/32 4490 117 209000 299000 299000 418000 418000 598000
2-3/8 60 14-1/4 8-9/16 52-1/4 1-9/16 4730 113 212000 314000 314000 440000 440000 628000
2-7/16 62 14-5/8 8-3/4 53-5/8 1-5/8 4960 111 231000 330000 330000 462000 462000 660000
2-1/2 64 15 9 55 1-5/8 5270 107 242000 346000 346000 484000 484000 692000
2-9/16 66 15-3/8 9-1/4 56-3/8 1-11/16 5540 105 254000 363000 363000 507000 507000 726000
2-5/8 67 15-3/4 9-7/16 57-3/4 1-11/16 5820 103 265000 379000 379000 530000 530000 758000
2-11/16 68 16-1/8 9-11/16 59-1/8 1-3/4 6110 99 277000 396000 396000 554000 554000 792000
2-3/4 70 16-1/2 9-7/8 60-1/2 1-13/16 6410 97 289000 413000 413000 578000 578000 826000
2-13/16 71 16-7/8 10-1/8 61-7/8 1-27/32 6710 95 301000 431000 431000 603000 603000 861000
2-7/8 73 17-1/4 10-3/8 63-1/4 1-7/8 7020 93 314000 449000 449000 628000 628000 897000
2-15/16 75 17-5/8 10-9/16 64-5/8 1-7/8 7330 91 327000 467000 467000 654000 654000 934000
3 76 18 10-13/16 66 2 7650 89 340000 485000 485000 679000 679000 970000
3-1/16 78 18-3/8 11 67-3/8 2 7980 87 353000 504000 504000 705000 705000 1008000
3-1/8 79 18-3/4 11-1/4 68-3/4 2-1/16 8320 85 366000 523000 523000 732000 732000 1046000
3-3/16 81 19-1/8 11-1/2 70-1/8 2-1/16 8660 85 380000 542000 542000 759000 759000 1084000
3-1/4 83 19-1/2 11-11/16 71-1/2 2-1/8 9010 83 393000 562000 562000 787000 787000 1124000
3-5/16 84 19-7/8 11-15/16 72-7/8 2-1/8 9360 81 407000 582000 582000 814000 814000 1163000
3-3/8 86 20-1/4 12-1/8 74-1/4 2-3/16 9730 79 421000 602000 602000 843000 843000 1204000
3-7/16 87 20-5/8 12-3/8 75-5/8 2-3/16 10100 77 435000 622000 622000 871000 871000 1244000
3-1/2 90 21 12-5/8 77 2-5/16 10500 77 450000 643000 643000 900000 900000 1285000
3-5/8 92 21-3/4 12-15/16 79-3/4 2-5/16 11300 73 479000 685000 685000 958000 958000 1369000
3-3/4 95 22-1/2 13-3/8 82-1/2 2-15/32 12000 71 509000 728000 728000 1019000 1019000 1455000
3-7/8 98 23-1/4 14 85-1/4 2-15/32 12900 69 540000 772000 772000 1080000 1080000 1543000
4 102 24 14-3/8 88 2-5/8 13700 67 571000 816000 816000 1143000 1143000 1673200
4-1/8 105 24-3/4 14-11/16 90-3/4 2-11/16 14560 65 603300 861800 861800 1206600 1206600 1732700
4-1/4 109 25-1/2 15-3/16 93-1/2 2-3/4 15350 63 635800 908300 908300 1271800 1271800 1816800
4-3/8 111 26-1/4 15-9/16 96-1/4 2-7/8 16200 61 669000 955700 955700 1338000 1338000 1911300
4-1/2 114 27 16 99 2-15/16 17100 59 702700 1003700 1003700 1405300 1405300 2007500
4-5/8 117 27-3/4 16-7/16 101-3/4 3 18000 57 736700 1052600 1052600 1473600 1473600 2105200
4-3/4 120 28-1/2 16-7/8 104-1/2 3-1/16 18900 57 771500 1102100 1102100 1542900 1542900 2204200
4-13/16 122 28-11/16 17 105-7/8 3-1/8 19400 57 789100 1127300 1127300 1578200 1578200 2254600
4-7/8 124 29-1/4 17-3/8 107-1/4 3-3/16 19900 55 806700 1152500 1152500 1613400 1613400 2304900
5 127 30 17-13/16 110 3-1/4 20900 53 842300 1203300 1203300 1684600 1684600 2406600
5-1/8 130 30-3/4 18-1/4 112-3/4 3-5/16 22000 52 878300 1254700 1254700 1756600 1756600 2509400
5-3/16 132 31-1/8 18-7/16 114-1/8 3-3/8 22500 51 896400 1280600 1280600 1792900 1792900 2561300
5-7/16 139 32-5/8 19-3/8 119-5/8 3-1/2 24500 49 970000 1385700 1385700 1940000 1940000 2771400
5-5/8 144 33-3/4 20 123-3/4 3-11/16 26100 47 1026000 1465800 1465800 2052100 2052100 2931500
5-13/16 148 34-15/16 20-3/4 127-7/8 3-3/4 27600 46 1082800 1546800 1546800 2165500 2165500 3093600
6 152 36 21-3/8 130 3-7/8 29100 45 1140100 1628700 1628700 2280200 2280200 3257400