62mm U2 Stud Link Anchor Chain
Engineered for dependable performance in demanding commercial and industrial marine applications, our 62mm U2 Stud Link Anchor Chain represents the ideal balance of strength, durability, and reliability for vessels requiring secure anchoring solutions. Manufactured from premium high-tensile CM490 steel, this robust chain is designed to withstand the rigorous conditions of commercial shipping, offshore operations, and heavy-duty marine mooring duties.
The 62mm diameter places this chain in the heavy-duty category, suitable for medium to large vessels including workboats, tugs, barges, and smaller commercial ships. Each link is precision-formed and features the critical stud—a solid bar across the center of each link—which provides exceptional resistance to deformation under load and ensures smooth handling through the windlass gypsy.
As a U2 grade mooring chain, it offers a proven combination of high tensile strength and excellent ductility. The CM490 carbon steel construction ensures the chain can absorb significant shock loads without failure, providing the security and peace of mind required for critical anchoring and towing operations.
Key Specifications:
| Specification | Detail |
|---|---|
| Type | Stud Link Anchor Chain (Studded) |
| Diameter | 62mm (±1% tolerance) |
| Grade | U2 (Grade 2) |
| Min. Breaking Load | 1,960 kN (as per standard) Please verify from table |
| Material | High-Tensile CM490 Carbon Steel |
| Standard Length | 27.5 meters per shackle |
| Surface Treatment | Hot-dip galvanized (HDG) for superior corrosion resistance, or black painted finish. |
| Certifications | Available from major classification societies: ABS, BV, CCS, DNV GL, LR, NK, RS, IRS. |
Performance Data & Dimensions
Below are the detailed specifications for our 62mm U2 chain, along with the complete range for reference. All loads are in kilonewtons (kN), mass is approximate per standard 27.5m shackle.
| Proof Test Load (kN) | Breaking Test Load (kN) | Nominal Chain Dia. (mm) | Approx. Mass (kg/27.5m) |
|---|---|---|---|
| 66 | 92 | 12.5 | 105 |
| 82 | 116 | 14 | 142 |
| 107 | 150 | 16 | 175 |
| 127 | 179 | 17.5 | 194 |
| 150 | 211 | 19 | 236 |
| 175 | 244 | 20.5 | 269 |
| 200 | 280 | 22 | 322 |
| 237 | 332 | 24 | 370 |
| 278 | 389 | 26 | 431 |
| 321 | 449 | 28 | 496 |
| 368 | 514 | 30 | 564 |
| 417 | 583 | 32 | 635 |
| 468 | 655 | 34 | 712 |
| 523 | 732 | 36 | 800 |
| 581 | 812 | 38 | 887 |
| 640 | 896 | 40 | 1032 |
| 703 | 981 | 42 | 1084 |
| 769 | 1080 | 44 | 1197 |
| 837 | 1170 | 46 | 1310 |
| 908 | 1270 | 48 | 1438 |
| 981 | 1370 | 50 | 1546 |
| 1060 | 1480 | 52 | 1661 |
| 1140 | 1590 | 54 | 1791 |
| 1220 | 1710 | 56 | 1926 |
| 1290 | 1810 | 58 | 2086 |
| 1380 | 1940 | 60 | 2249 |
| 1470 | 2060 | 62 | 2361 |
| 1560 | 2190 | 64 | 2516 |
| 1660 | 2310 | 66 | 2676 |
| 1750 | 2450 | 68 | 2885 |
| 1840 | 2580 | 70 | 3010 |
| 1990 | 2790 | 73 | 3274 |
| 2150 | 3010 | 76 | 3548 |
| 2260 | 3160 | 78 | 3737 |
| 2410 | 3380 | 81 | 4030 |
| 2580 | 3610 | 84 | 4334 |
| 2750 | 3850 | 87 | 4650 |
| 2920 | 4090 | 90 | 4976 |
| 3040 | 4260 | 92 | 5199 |
| 3230 | 4510 | 95 | 5544 |
| 3340 | 4680 | 97 | 5780 |
| 3530 | 4940 | 100 | 6143 |
| 3660 | 5120 | 102 | 6398 |
| 3850 | 5390 | 105 | 6773 |
| 3980 | 5570 | 107 | 7033 |
| 4250 | 5940 | 111 | 7569 |
| 4440 | 6230 | 114 | 7983 |
| 4650 | 6510 | 117 | 8409 |
| 4850 | 6810 | 120 | 8863 |
| 5000 | 7000 | 122 | 9143 |
| 5140 | 7200 | 124 | 9598 |
| 5350 | 7490 | 127 | 9908 |
| 5570 | 7800 | 130 | 10382 |
| 5720 | 8000 | 132 | 10620 |
| 6080 | 8510 | 137 | 11439 |
| 6450 | 9030 | 142 | 12289 |
| 6840 | 9560 | 147 | 13170 |
| 7220 | 10100 | 152 | 14081 |
| 7600 | 10640 | 157 | 15023 |
| 7990 | 11180 | 162 | 15995 |
Frequently Asked Questions (FAQs)
Q1: What does “U2 Grade” mean for this 62mm anchor chain?
A: U2 Grade (or Grade 2) refers to the strength classification of the steel. It signifies that the chain is manufactured from CM490 carbon steel and meets specific mechanical property requirements, including minimum tensile and yield strengths. U2 is a common and reliable grade for a wide range of commercial marine applications, offering an excellent balance of strength, weldability, and ductility.
Q2: What is the purpose of the “stud” in a stud link anchor chain?
A: The stud is a solid bar fitted across the center of each link. It serves two critical functions: First, it prevents the link from deforming (collapsing or twisting) under extreme tensile loads, maintaining the link’s shape and strength. Second, it helps the chain handle more smoothly through the windlass gypsy, reducing the risk of jamming. This design is essential for the reliable performance of a heavy-duty anchor chain.
Q3: What is the approximate breaking load for the 62mm U2 chain?
A: According to the standard specifications in the table, the minimum breaking load for our 62mm U2 stud link chain is 2060 kN. This value represents the calculated force at which the chain is expected to break during a destructive test. The safe working load limit (WLL) is a fraction of this value, determined by an appropriate safety factor (often 3:1 or 4:1).
Q4: What surface finish do you recommend for this chain, and why?
A: For any chain used in saltwater environments, we strongly recommend the hot-dip galvanized (HDG) finish. This process applies a thick, metallurgically bonded layer of zinc that provides exceptional, long-lasting corrosion protection. While the standard black painted finish offers basic protection for storage or less corrosive environments, HDG is the superior choice for ensuring a long service life in marine mooring applications.
Q5: What certifications are available for this 62mm anchor chain?
A: We can supply this CM490 steel chain with full certification from all major international classification societies. This includes ABS, BV, CCS, DNV GL, LR, NK, RS, and IRS. These certificates provide documented proof of the chain’s material properties, manufacturing traceability, and successful testing, which is often a mandatory requirement for classed vessels.
Q6: Is this 62mm U2 chain suitable for use on a tugboat or workboat?
A: Yes, the 62mm diameter U2 chain is a common and suitable choice for medium to large tugboats, workboats, barges, and smaller commercial ships. Its robust construction and proven strength make it ideal for anchoring and towing operations in demanding industrial marine applications. However, the final selection should always be confirmed by a naval architect or qualified marine engineer based on the vessel’s specific displacement and operational profile.
Attention please: The description was copied from different cooperating manufacturers. The description may be different with the goods, please check with us when order.
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