Grade U2 Offshore Marine Mooring Studlink Anchor Chain

• Customization: Available
• After-sales Service: Provide Regular Maintenance Guidance
• Warranty: 1 Year
• Model NO.: Mooring chain
• Application: Boat, Yacht, Mooring
• Standard: ASTM, GB, DIN, ANSI, JIS, ISO, Lr/BV/Dnv/ABS/CCS
• Customized: Customized
• Surface Treatment: Galvanized
• Material: Steel
• Type: Anchor Chain
• Colour: Black/Galvanized/Customized
• Grade: U1/U2/U3/R3/R4
• Length: 27.5m/1m-1000m
• Structure: Welded Chain
• Accessories: Kenter Shackle,Anchor Shackle,Swivel Forerunner
• Grade Material: U1:Cm370 U2: Cm490 U3: Cm690
• Transport Package: Nude Packing/Pallet/Strong Woven Bag/Iron Drum
• Specification: 16MM-132MM
• Trademark: Haosail
• Origin: China
• HS Code: 73158100
• Production Capacity: 1000tons/Year

Product Description

Product Description

Stud link Anchor Chain 
The comprehensive performance of deep-sea aquaculture mooring chains is higher than that of ordinary marine anchor chains. Through technical R&D and design, Haosail has optimized the material division and production process to meet the requirements of deep-sea aquaculture mooring use. The seawater corrosion resistance service life of the deep-sea aquaculture mooring chains can reach more than 5 years; The yield strength, tensile strength and effective load capacity are increased by more than 20%; The weight of the mooring system is effectively reduced by 30%, which improves the safety of the system and reduces the equipment costs at the same time.
The most popular stud link anchor chains used for aquaculture mooring are Grade U2 & U3 from 16mm to 76mm. Shipping society certificates are also available, like LR, ABS, DNV, BV etc.
The ship's anchor chain, anchor and chain cabin are often subjected to friction and seawater corrosion, which is easy to produce more severe rust, so the coating is required to have the role of seawater corrosion resistance and rust prevention. 
The coating usually used is epoxy coal asphalt paint, which is generally coated 2 to 3 times, and the dry film thickness is more than 60μm. In the use of ships, it was found that the paint film fell off due to bumps and other reasons, and it needs to be repaired in time. Repair method: In a dry environment, sand the edge of the old paint film, remove dust and dirt, brush the epoxy coal asphalt paint carefully painted on the anchor chain, 24h later, the second coat, 5 days before use, during which do not drag and stack the undried anchor chain.
 

Detailed Photos

Productive process and workshop:
Our inspection:
We have mechanical laboratory covers an area of 1000 square meters, equipped with 6300KN multi-function tensile testing machine, Spark-OES, Metallurgical micropscope, universal testing machine, automcatic impact testing machine, salt spary test machine, by testing materials, microstructure, mechanical properties and product functions, the quality is guaranteed to meet the standard requirements. Our laboratory is internation CNAS certified.
We ensure that each batch of products will provide you with detailed inspection photos or videos.

Product Parameters

Stock No.	NORMINAL CHAIN DIAMETER(MM)	PROOF TEST LOAD(KN)		BREAKING TESTLOAD(KN)
		GRADE 2	GRADE 3	GRADE 2	GRADE 3
HSM030301001	16	107	150	150	216
HSM030301002	17.5	127	179	179	256
HSM030301003	19	150	211	211	301
HSM030301004	20.5	175	244	244	349
HSM030301005	22	200	280	280	401
HSM030301006	24	237	332	332	476
HSM030301007	26	278	389	389	556
HSM030301008	28	321	449	449	642
HSM030301009	30	368	514	514	735
HSM030301010	32	417	583	583	833
HSM030301011	34	468	655	655	937
HSM030301012	36	523	732	732	1050
HSM030301013	38	581	812	812	1160
HSM030301014	40	640	896	896	1280
HSM030301015	42	703	981	981	1400
HSM030301016	44	769	1080	1080	1540
HSM030301017	46	837	1170	1170	1680
HSM030301018	48	908	1270	1270	1810
HSM030301019	50	981	1370	1370	1960
HSM030301020	52	1060	1480	1480	2110
HSM030301021	54	1140	1590	1590	2270
HSM030301022	56	1220	1710	1710	2430
HSM030301023	58	1290	1810	1810	2600
HSM030301024	60	1380	1940	1940	2770
HSM030301025	62	1470	2060	2060	2940
HSM030301026	64	1560	2190	2190	3130
HSM030301027	66	1660	2310	2310	3300
HSM030301028	68	1750	2450	2450	3500
HSM030301029	70	1840	2580	2580	3690
HSM030301030	73	1990	2790	2790	3990
HSM030301031	76	2150	3010	3010	4300
HSM030301032	78	2260	3160	3160	4500
HSM030301033	81	2410	3380	3380	4820
HSM030301034	84	2580	3610	3610	5160
HSM030301035	87	2750	3850	3850	5500
HSM030301036	90	2920	4090	4090	5840
HSM030301037	92	3040	4260	4260	6080
HSM030301038	95	3230	4510	4510	6440
HSM030301039	97	3340	4680	4680	6690
HSM030301040	100	3530	4940	4940	7060
HSM030301041	102	3660	5120	5120	7320
HSM030301042	105	3850	5390	5390	7700
HSM030301043	107	3980	5570	5570	7960
HSM030301044	111	4250	5940	5940	8480
HSM030301045	114	4440	6230	6230	8890
HSM030301046	117	4650	6510	6510	9300
HSM030301047	120	4850	6810	6810	9720
HSM030301048	122	5000	7000	7000	9990
HSM030301049	124	5140	7200	7200	10280
HSM030301050	127	5350	7490	7490	10710
HSM030301051	130	5570	7800	7800	11140
HSM030301052	132	5720	8000	8000	11420

Certifications

Haosail will provide Mill cert and inspection report and steel material quality certificate for each chain

Packaging & Shipping

Company Profile

 

Qingdao Haosail machinery Co., Ltd is a Chinese company that specializes in synthetic solutions for the Offshore oil&gas, Marine, Aquaculture industries. From marine deck equipment, moorings solution to hardware to lifting slings Haosail has the answer.
We have combined experience on Overall project design, resource integration and quality control backed up by continuous successes and sound engineering experience and input. We can do product design and complete set of connecting design to meet client's requirement, by given usage environment, tensile and construction requirement and etc.We have participated in the design and provision of overseas Marine engineering, dock anchorage mooring project products, dock dock ship repair supporting products, etc.
At the same time,reliability in the marine and mooring industry have enabled Haosail to build up a superior network of factories and contractors that Haosail can offer throughout the Oceanic region.

 

Haosail can supply a range of products:

√  Anchor, Anchor Chain and accessaries
√  Marine Deck Fittings(Chock, Bollard, Fairleader and etc)
√  Mooring Rope and Steel Cable
√  Buoy
√  Mooring systems
√  Heavy Lift Synthetic Slings
√  Deck and Quayside Fittings
 

Our Advantages

Haosail's Supply Chain Management Team, Quality Management System and kinds of Testing Equipments ensure complete confidence in the products and services provided, and to ensure customer satisfaction.

√   Getting things right first time
√   Know kinds of factory well, know their production capacity and advantages, resource allocation, can quick response to all kinds of problems.
√   Develop product cost model independently, get hold of product cost composition
√   Overall optimization design, reduce the cost and the risk
√   Offer products and services that are better in quality or performance than those offered by the competition
√   Customer specifications strictly observed and fulfilled.

We can Technical Design:
Our team have a depth of technical ability and knowledge gained through many years of experience in lifting, rigging and safety. We can provide common lifting design, heavy work lifting design, and can non-standard product lifting design to meet customer needs.
We can do Training:
In order to better serve customers, our company specially organized professionals to carry out training in lifting design, lifting product introduction and use, and lifting product maintenance.
 

 

FAQ

1.Question: How often should a comprehensive inspection of the anchor chain be carried out?
Answer: It is generally recommended to conduct a preliminary visual inspection before and after each ship's voyage. A more comprehensive inspection, including a detailed check of the chain links, connecting components, etc., should be carried out at least once a month. For ships operating in harsh environments for an extended period, the inspection frequency should be appropriately increased.
2.Question: How to determine if the wear of the anchor chain exceeds the standard?
Answer: Use tools such as calipers to measure the diameter of the chain links and compare it with the original design dimensions. Generally, if the wear of a chain link exceeds 10% of its original diameter, it can be considered that the wear exceeds the standard, and replacement or repair should be considered.
3.Question: What cleaning agents can be used to clean the anchor chain?
Answer: For general dirt and rust, clean water and a wire brush can be used for cleaning. If the rust is severe, a mild acidic rust remover can be used, but it should be rinsed thoroughly with clean water in a timely manner to avoid residues. There are also special ship anchor chain cleaning agents that can effectively remove oil stains, marine organisms, etc., and have less corrosiveness to the anchor chain material.
4.Question: Is there a pressure requirement for flushing the anchor chain with a high - pressure water gun?
Answer: Usually, a high - pressure water gun with a pressure of 1000 - 3000 PSI (pounds per square inch) is more appropriate. If the pressure is too low, it may not effectively remove debris, and if the pressure is too high, it may damage the surface of the anchor chain.
5.Question: Which protective paint should be selected to maintain the anchor chain?
Answer: Ship - specific anti - rust paint with good anti - corrosion performance, such as epoxy zinc - rich paint, should be selected. This kind of paint can form a firm protective film on the surface of the anchor chain, effectively preventing seawater corrosion and having good wear resistance.
6.Question: What are the precautions for applying anti - rust grease?
Answer: Ensure that the surface of the anchor chain is clean and dry before application. The grease should be evenly applied to the surface and joints of the chain links, especially in parts prone to wear. At the same time, pay attention to choosing anti - rust grease suitable for the marine environment, and avoid using grease that is easily washed away by seawater or loses its performance at low temperatures.
7.Question: Does the anchor chain compartment need special moisture - proof treatment?
Answer: Yes. Moisture - proof paint can be applied to the bulkheads and floors of the anchor chain compartment, and ventilation equipment such as exhaust fans can be installed to keep the air in the compartment circulating. If possible, desiccants can also be placed to absorb excess moisture in the compartment.
8.Question: What are the requirements for placing the anchor chain in the anchor chain compartment?
Answer: It should be neatly coiled and arranged, stratified and arranged in a certain order to avoid entanglement and extrusion between the chain links. At the same time, leave enough space for inspection and maintenance. The end of the anchor chain should be fixed firmly to prevent it from loosening when the ship shakes.
9.Question: Can a slightly deformed anchor chain be used continuously?
Answer: If it is a slight deformation, after evaluation by professionals to confirm that it does not affect the strength and performance of the anchor chain, it can be used continuously, but enhanced monitoring is required. If the deformation is caused by excessive local stress or other abnormal conditions, even if it is slight, further inspection is recommended, and correction or replacement may be necessary.
10.Question: How often is the braking device tested?
Answer: Generally, the braking device should be functionally tested before each anchor - raising and anchor - dropping operation to ensure its sensitivity and reliability. In addition, a detailed inspection and test of the braking device, including braking response time, braking force, etc., should also be included in the monthly comprehensive inspection.