Stud Link Anchor Chain

Stud Link Anchor Chain (SLAC)

Otherwise know as Anchor Chain.

Stud Link Anchor Chain is the strongest type of chain available that comes with full traceability.

If you are buying SLAC for your commercial marine (ship / barge / platform), one of the most important determining factors is what "Type Approval" does your insurance company or ship owner require.

To maintain your insurance, you need to buy chain that is approved by the appropriate maritime certification agency.

The oldest, most common, for large ship tranporting goods across international boundaries is Lloyd's.

Depending on the water the ship sails, there are regional marine agencies like American Bureau of Shipping (ABS) or many others.

Any commercial marine vessel operating in North America will require either Llloyds or ABS approvals for their anchor chain and everyhting that it connects to.

"Type Approvals" are usually required on *ALL* parts of anchoring a vessel.  Anchor, Shackles, Chain, and Swivel as a minimum.

Anchor Chain in Canada and USA is available with either Lloyds or ABS approvals.  The certification ads a considerabe cost to manufacturing.

Lloyds approval, as the ultimate "Gold Standard", is generaly slightly more expensive then ABS or other other regional or national maritime certification authorities. 

For a commercial maritime vessel, chain grade like Grade 30, Grade 80, Grade 100 are *NOT APPROPRIATE*.  Grade 80 and Grade 100 might be approved for overhead lifting, but that's a whole different situation than anchoring a commercial vessel in the open ocean. 

In Marine SLAC there are 3 grades commonly made:

Grade 2

Grade 3

ORQ - Oil Rig Quality

Offfshore Oil Platforms usually require ORQ.  This is the strongest chain grade available.  There is nothing stronger. 


           
Diameter     Physical Link Length   Physical Link Width   Links per Lbs per Lbs per Lbs per  
Fraction Inch mm Inch mm Inch mm shot link shot (90FT) FT  
1/16 0.0625 2 0.375 9.5 0.225 5.7 4320 0.0 3 0 0.25
1/8 0.125 3 0.75 19.1 0.45 11.4 2160 0.0 13 0 0.5
3/16 0.1875 5 1.125 28.6 0.675 17.1 1440 0.0 30 0 0.75
1/4 0.25 6 1.5 38.1 0.9 22.9 1080 0.0 54 1 1
5/16 0.3125 8 1.875 47.6 1.125 28.6 864 0.1 84 1 1.25
3/8 0.375 10 2.25 57.2 1.35 34.3 720 0.2 121 1 1.5
7/16 0.4375 11 2.625 66.7 1.575 40.0 617 0.3 165 2 1.75
1/2 0.5 13 3 76.2 1.8 45.7 540 0.4 215 2 2
9/16 0.5625 14 3.375 85.7 2.025 51.4 480 0.6 273 3 2.25
5/8 0.625 16 3.75 95.3 2.25 57.2 432 0.8 336 4 2.5
11/16 0.6875 17 4.125 104.8 2.475 62.9 393 1.0 407 5 2.75
3/4 0.75 19 4.5 114.3 2.7 68.6 360 1.3 484 5 3
13/16 0.8125 21 4.875 123.8 2.925 74.3 332 1.7 568 6 3.25
7/8 0.875 22 5.25 133.4 3.15 80.0 309 2.1 660 7 3.5
15/16 0.9375 24 5.625 142.9 3.375 85.7 288 2.6 757 8 3.75
1 1 25 6 152.4 3.6 91.4 270 3.2 861 10 4
1-1/16 1.0625 27 6.375 161.9 3.825 97.2 254 3.8 972 11 4.25
1-1/8 1.125 29 6.75 171.5 4.05 102.9 240 4.5 1090 12 4.5
1-3/16 1.1875 30 7.125 181.0 4.275 108.6 227 5.3 1213 13 4.75
1-1/4 1.25 32 7.5 190.5 4.5 114.3 216 6.2 1346 15 5
1-5/16 1.3125 33 7.875 200.0 4.725 120.0 206 7.2 1486 17 5.25
1-3/8 1.375 35 8.25 209.6 4.95 125.7 196 8.3 1625 18 5.5
1-7/16 1.4375 37 8.625 219.1 5.175 131.4 188 9.5 1781 20 5.75
1-1/2 1.5 38 9 228.6 5.4 137.2 180 10.8 1938 22 6
1-9/16 1.5625 40 9.375 238.1 5.625 142.9 173 12.2 2105 23 6.25
1-5/8 1.625 41 9.75 247.7 5.85 148.6 166 13.7 2272 25 6.5
1-11/16 1.6875 43 10.125 257.2 6.075 154.3 160 15.3 2453 27 6.75
1-3/4 1.75 44 10.5 266.7 6.3 160.0 154 17.1 2633 29 7
1-13/16 1.8125 46 10.875 276.2 6.525 165.7 149 19.0 2830 31 7.25
1-7/8 1.875 48 11.25 285.8 6.75 171.5 144 21.0 3028 34 7.5
1-15/16 1.9375 49 11.625 295.3 6.975 177.2 139 23.2 3225 36 7.75
2 2 51 12 304.8 7.2 182.9 135 25.5 3445 38 8
2-1/16 2.0625 52 12.375 314.3 7.425 188.6 131 28.0 3666 41 8.25
2-1/8 2.125 54 12.75 323.9 7.65 194.3 127 30.6 3888 43 8.5
2-3/16 2.1875 56 13.125 333.4 7.875 200.0 123 33.4 4107 46 8.75
2-1/4 2.25 57 13.5 342.9 8.1 205.7 120 36.3 4360 48 9
2-5/16 2.3125 59 13.875 352.4 8.325 211.5 117 39.4 4616 51 9.25
2-3/8 2.375 60 14.25 362.0 8.55 217.2 114 42.7 4872 54 9.5
2-7/16 2.4375 62 14.625 371.5 8.775 222.9 111 46.2 5128 57 9.75
2-1/2 2.5 64 15 381.0 9 228.6 108 49.8 5383 60 10
2-9/16 2.5625 65 15.375 390.5 9.225 234.3 105 53.7 5636 63 10.25
2-5/8 2.625 67 15.75 400.1 9.45 240.0 103 57.7 5943 66 10.5
2-11/16 2.6875 68 16.125 409.6 9.675 245.7 100 61.9 6192 69 10.75
2-3/4 2.75 70 16.5 419.1 9.9 251.5 98 66.3 6502 72 11
2-13/16 2.8125 71 16.875 428.6 10.125 257.2 96 71.0 6813 76 11.25
2-7/8 2.875 73 17.25 438.2 10.35 262.9 94 75.8 7126 79 11.5
2-15/16 2.9375 75 17.625 447.7 10.575 268.6 92 80.9 7439 83 11.75
3 3 76 18 457.2 10.8 274.3 90 86.1 7752 86 12
3-1/16 3.0625 78 18.375 466.7 11.025 280.0 88 91.6 8063 90 12.25
3-1/8 3.125 79 18.75 476.3 11.25 285.8 86 97.4 8372 93 12.5
3-3/16 3.1875 81 19.125 485.8 11.475 291.5 85 103.3 8781 98 12.75
3-1/4 3.25 83 19.5 495.3 11.7 297.2 83 109.5 9089 101 13
3-5/16 3.3125 84 19.875 504.8 11.925 302.9 82 115.9 9508 106 13.25
3-3/8 3.375 86 20.25 514.4 12.15 308.6 80 122.6 9811 109 13.5
3-7/16 3.4375 87 20.625 523.9 12.375 314.3 79 129.6 10236 114 13.75
3-1/2 3.5 89 21 533.4 12.6 320.0 77 136.8 10531 117 14
3-9/16 3.5625 90 21.375 542.9 12.825 325.8 76 144.2 10961 122 14.25
3-5/8 3.625 92 21.75 552.5 13.05 331.5 74 152.0 11245 125 14.5
3-11/16 3.6875 94 22.125 562.0 13.275 337.2 73 160.0 11676 130 14.75
3-3/4 3.75 95 22.5 571.5 13.5 342.9 72 168.2 12112 135 15
3-13/16 3.8125 97 22.875 581.0 13.725 348.6 71 176.8 12551 139 15.25
3-7/8 3.875 98 23.25 590.6 13.95 354.3 70 185.6 12993 144 15.5
3-15/16 3.9375 100 23.625 600.1 14.175 360.0 69 194.7 13437 149 15.75
4 4 102 24 609.6 14.4 365.8 68 204.2 13883 154 16
4-1/16 4.0625 103 24.375 619.1 14.625 371.5 66 213.9 14116 157 16.25
4-1/8 4.125 105 24.75 628.7 14.85 377.2 65 223.9 14554 162 16.5
4-3/16 4.1875 106 25.125 638.2 15.075 382.9 64 234.2 14991 167 16.75
4-1/4 4.25 108 25.5 647.7 15.3 388.6 64 244.9 15672 174 17
4-5/16 4.3125 110 25.875 657.2 15.525 394.3 63 255.8 16118 179 17.25
4-3/8 4.375 111 26.25 666.8 15.75 400.1 62 267.1 16562 184 17.5
4-7/16 4.4375 113 26.625 676.3 15.975 405.8 61 278.7 17003 189 17.75
4-1/2 4.5 114 27 685.8 16.2 411.5 60 290.7 17441 194 18
4-9/16 4.5625 116 27.375 695.3 16.425 417.2 59 303.0 17875 199 18.25
4-5/8 4.625 117 27.75 704.9 16.65 422.9 58 315.6 18304 203 18.5
4-11/16 4.6875 119 28.125 714.4 16.875 428.6 58 328.6 19056 212 18.75
4-3/4 4.75 121 28.5 723.9 17.1 434.3 57 341.9 19487 217 19
4-13/16 4.8125 122 28.875 733.4 17.325 440.1 56 355.6 19911 221 19.25
4-7/8 4.875 124 29.25 743.0 17.55 445.8 55 369.6 20327 226 19.5
4-15/16 4.9375 125 29.625 752.5 17.775 451.5 55 384.0 21119 235 19.75
5 5 127 30 762.0 18 457.2 54 398.8 21533 239 20
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