R4 Grade Mooring Chain – Superior Strength for Deepwater Operations
Engineered for Extreme Offshore Environments
R4 Grade Mooring Chain represents the premium tier of offshore mooring solutions, specifically designed for deep-sea oil & gas platforms, floating production systems, and critical marine installations. With higher tensile strength than R3-grade chains, R4 provides unmatched reliability in water depths exceeding 1,500 meters.
Mooring Chain Grades – Selecting the Right Solution
| Grade | Tensile Strength | Primary Applications |
|---|---|---|
| R3/R3S | 690-800 N/mm² | Shallow-water platforms, coastal installations |
| R4/R4S | 860-1,000 N/mm² | Deepwater FPSOs, SPAR platforms |
| R5 | 1,100+ N/mm² | Ultra-deepwater (3,000m+) installations |
Parameters:
| R4 | Chain Diameter | ||
| Stud Tension | Studless Tension | Breaking Load | |
| 1031 | 917 | 1308 | 34 |
| 1152 | 1024 | 1461 | 36 |
| 1278 | 1136 | 1621 | 38 |
| 1411 | 1254 | 1789 | 40 |
| 1549 | 1377 | 1965 | 42 |
| 1693 | 1505 | 2148 | 44 |
| 1843 | 1639 | 2338 | 46 |
| 1999 | 1777 | 2536 | 48 |
| 2160 | 1920 | 2740 | 50 |
| 2327 | 2069 | 2952 | 52 |
| 2500 | 2222 | 3171 | 54 |
| 2677 | 2380 | 3396 | 56 |
| 2860 | 2543 | 3628 | 58 |
| 3049 | 2710 | 3867 | 60 |
| 3242 | 2882 | 4112 | 62 |
| 3440 | 3058 | 4364 | 64 |
| 3644 | 3239 | 4622 | 66 |
| 3852 | 3424 | 4886 | 68 |
| 4065 | 3613 | 5156 | 70 |
| 4393 | 3905 | 5572 | 73 |
| 4731 | 4206 | 6002 | 76 |
| 4963 | 4411 | 6295 | 78 |
| 5318 | 4727 | 6746 | 81 |
| 5682 | 5051 | 7208 | 84 |
| 6056 | 5383 | 7682 | 87 |
| 6439 | 5724 | 8168 | 90 |
| 6699 | 5955 | 8498 | 92 |
| 7096 | 6308 | 9002 | 95 |
| 7366 | 6547 | 9343 | 97 |
| 7776 | 6912 | 9864 | 100 |
| 8055 | 7160 | 10217 | 102 |
| 8478 | 7536 | 10755 | 105 |
| 8765 | 7791 | 11118 | 107 |
| 9347 | 8309 | 11857 | 111 |
| 9792 | 8704 | 12421 | 114 |
| 10243 | 9105 | 12993 | 117 |
| 10700 | 9511 | 13573 | 120 |
| 11008 | 9785 | 13964 | 122 |
| 11319 | 10062 | 14358 | 124 |
| 11790 | 10480 | 14956 | 127 |
| 12266 | 10903 | 15559 | 130 |
| 12586 | 11188 | 15965 | 132 |
| 13395 | 11907 | 16992 | 137 |
| 14217 | 12637 | 18034 | 142 |
| 15049 | 13377 | 19089 | 147 |
| 15890 | 14125 | 20157 | 152 |
| 16740 | 14880 | 21235 | 157 |
| 17596 | 15641 | 22321 | 162 |
The description/sizes may be different with goods, please check with us when order.
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