66mm R3S Mooring Chain – High-Performance Offshore Solution
Engineered for Continental Shelf Applications
Our 66mm R3S Mooring Chain delivers exceptional strength and durability for marine construction and offshore platforms. As part of the premium R-series mooring chains, it offers superior performance in demanding shallow-water environments.
Key Specifications:
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Diameter: 66mm (±1% tolerance)
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Grade: R3S (Enhanced R3 grade)
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Material: Special alloy steel with improved toughness
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Minimum Breaking Load: 2,900 kN
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Certifications: DNV, ABS, API 2F, LR, NK
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Surface Treatment: Hot-dip galvanized with optional extra coatings
Mooring Chain Grade Comparison
| Grade | Tensile Strength | Primary Applications | Water Depth Range |
|---|---|---|---|
| R3/R3S | 690-800 MPa | Continental shelf platforms | 0-500m |
| R4/R4S | 860-1000 MPa | Deepwater FPSOs | 500-1500m |
| R5 | ≥1100 MPa | Ultra-deepwater installations | 1500m+ |
Parameters:
| R3s | Nominal Diameter (mm) | Weight (kg/m) | |||
| Studless Tension | Stud Tension | Breaking Load | Studless | Stud | |
| 831 | 859 | 1189 | 34 | 23.35 | 25.32 |
| 928 | 960 | 1327 | 36 | 26.18 | 28.39 |
| 1030 | 1065 | 1473 | 38 | 29.17 | 31.63 |
| 1136 | 1176 | 1626 | 40 | 32.32 | 35.04 |
| 1248 | 1291 | 1786 | 42 | 35.63 | 38.64 |
| 1364 | 1411 | 1952 | 44 | 39.11 | 42.4 |
| 1485 | 1536 | 2124 | 46 | 42.74 | 46.35 |
| 1610 | 1666 | 2304 | 48 | 46.54 | 50.46 |
| 1740 | 1800 | 2490 | 50 | 50.5 | 54.75 |
| 1875 | 1940 | 2683 | 52 | 54.62 | 59.22 |
| 2014 | 2083 | 2882 | 54 | 58.9 | 63.87 |
| 2157 | 2231 | 3086 | 56 | 63.35 | 68.68 |
| 2304 | 2384 | 3297 | 58 | 67.95 | 73.68 |
| 2456 | 2541 | 3514 | 60 | 72.72 | 78.84 |
| 2612 | 2702 | 3737 | 62 | 77.65 | 84.19 |
| 2771 | 2867 | 3966 | 64 | 82.74 | 89.71 |
| 2935 | 3036 | 4200 | 66 | 87.99 | 95.4 |
| 3103 | 3210 | 4440 | 68 | 93.4 | 101.27 |
| 3274 | 3387 | 4686 | 70 | 98.98 | 107.31 |
| 3539 | 3661 | 5064 | 73 | 107.65 | 116.71 |
| 3812 | 3943 | 5454 | 76 | 116.68 | 126.49 |
| 3998 | 4136 | 5721 | 78 | 122.9 | 133.24 |
| 4284 | 4432 | 6130 | 81 | 132.53 | 143.69 |
| 4578 | 4735 | 6550 | 84 | 142.53 | 154.53 |
| 4879 | 5047 | 6981 | 87 | 152.89 | 165.76 |
| 5187 | 5366 | 7423 | 90 | 163.62 | 177.39 |
| 5397 | 5583 | 7723 | 92 | 170.97 | 185.36 |
| 5717 | 5914 | 8180 | 95 | 182.31 | 197.65 |
| 5934 | 6138 | 8491 | 97 | 190.06 | 206.06 |
| 6264 | 6480 | 8964 | 100 | 202 | 219 |
| 6489 | 6712 | 9285 | 102 | 210.16 | 227.85 |
| 6830 | 7065 | 9774 | 105 | 222.71 | 241.45 |
| 7061 | 7304 | 10104 | 107 | 231.27 | 250.73 |
| 7530 | 7789 | 10775 | 111 | 248.88 | 269.83 |
| 7888 | 8160 | 11288 | 114 | 262.52 | 284.61 |
| 8251 | 8536 | 11808 | 117 | 276.52 | 299.79 |
| 8620 | 8917 | 12335 | 120 | 290.88 | 315.36 |
| 8868 | 9174 | 12690 | 122 | 300.66 | 325.96 |
| 9118 | 9433 | 13048 | 124 | 310.6 | 336.73 |
| 9498 | 9825 | 13591 | 127 | 325.81 | 353.23 |
| 9881 | 10222 | 14140 | 130 | 341.38 | 370.11 |
| 10139 | 10488 | 14509 | 132 | 351.96 | 381.59 |
| 10791 | 11163 | 15442 | 137 | 379.13 | 411.04 |
| 11452 | 11847 | 16389 | 142 | 407.31 | 441.59 |
| 12123 | 12541 | 17348 | 147 | 436.5 | 473.24 |
| 12800 | 13242 | 18318 | 152 | 466.7 | 505.98 |
| 13485 | 13950 | 19297 | 157 | 497.91 | 539.81 |
| 14175 | 14664 | 20284 | 162 | 530.13 | 574.74 |
| 14591 | 15094 | 20880 | 165 | 549.95 | 596.23 |
| 15008 | 15526 | 21477 | 168 | 570.12 | 618.11 |
| 15427 | 15959 | 22077 | 171 | 590.67 | 640.38 |
| 15987 | 16538 | 22877 | 175 | 618.63 | 670.69 |
| 16407 | 16973 | 23479 | 178 | 640.02 | 693.88 |
| 16688 | 17263 | 23881 | 180 | 654.48 | 709.56 |
| 16968 | 17554 | 24282 | 182 | 669.1 | 725.42 |
| 17390 | 17989 | 24885 | 185 | 691.35 | 749.53 |
| 17810 | 18425 | 25487 | 188 | 713.95 | 774.03 |
| 18231 | 18860 | 26089 | 191 | 736.92 | 798.93 |
| 18651 | 19294 | 26690 | 194 | 760.25 | 824.23 |
| 19070 | 19728 | 27290 | 197 | 783.94 | 849.92 |
| 19488 | 20160 | 27888 | 200 | 808 | 976 |
| 20183 | 20879 | 28882 | 205 | 848.91 | 920.35 |
| 20872 | 21592 | 29869 | 210 | 890.82 | 965.79 |
The description/sizes may be different with goods, please check with us when order.
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