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Marine Insight: Am-2 Anchor Chain
Marine Industry Demand for AM-2 Anchor Chain
The AM-2 anchor chain is a critical component in modern maritime anchoring systems, playing a pivotal role in ensuring vessel safety during mooring, anchoring, and station-keeping operations. Recognized for its high tensile strength and durability, the AM-2 grade chain is widely specified in international marine standards, particularly under the International Organization for Standardization (ISO 1704:2019) and classification society rules such as those from ABS, DNV, and LR. Its composition, typically medium carbon manganese steel with controlled heat treatment, provides excellent resistance to wear, fatigue, and environmental corrosion—making it ideal for use in diverse sea conditions, from sheltered harbors to open ocean anchoring.
In commercial shipping, offshore energy platforms, and large yachts, the reliability of the anchoring system directly impacts operational safety and crew protection. A failure in the anchor chain can lead to drifting vessels, collisions, environmental damage, and costly salvage operations. The AM-2 grade strikes an optimal balance between mechanical performance and cost, offering a minimum breaking load (MBL) that exceeds operational demands while maintaining manufacturability and weldability. This makes it a preferred choice for vessels ranging from medium-sized cargo ships to offshore support vessels.
From a procurement standpoint, sourcing AM-2 anchor chains from Hangzhou Star Marine Technology Co., Ltd. presents a strategic advantage for global buyers. As a certified manufacturer based in China, Star Marine leverages advanced production technology, stringent quality control systems, and direct access to raw materials to deliver high-performance chains at competitive prices. Our facility adheres to ISO 9001 standards and undergoes regular audits by classification societies, ensuring full traceability and compliance with international specifications.
Additionally, China’s robust industrial infrastructure allows for economies of scale, reduced lead times, and flexible customization—such as specific lengths, end fittings, and protective coatings—without compromising on quality. Star Marine’s export experience ensures seamless logistics, documentation, and after-sales support for clients across Europe, Southeast Asia, the Middle East, and the Americas.
The following table outlines key technical specifications of the AM-2 anchor chain as manufactured by Hangzhou Star Marine Technology:
| Parameter | Value |
|---|---|
| Grade | AM-2 (ISO 1704:2019) |
| Material | Forged Manganese Steel |
| Diameter Range | 14 mm – 84 mm |
| Minimum Breaking Load (MBL) | 530 N/mm² (based on diameter) |
| Elongation at Break | ≥ 20% |
| Certification Standards | ISO 1704, ABS, DNV, LR, CCS |
| Surface Treatment | As-rolled or Hot-Dip Galvanized |
| Test Certificate | MTC 3.2 (EN 10204) available |
By combining technical excellence with cost efficiency, Hangzhou Star Marine Technology offers a reliable supply solution for AM-2 anchor chains, supporting global maritime safety and operational continuity.
Technical Specs & Approval
Technical Specifications: AM-2 Anchor Chain
Hangzhou Star Marine Technology Co., Ltd. provides AM-2 anchor chains manufactured to stringent international standards, specifically ISO 1704:2013. This chain grade represents a critical component within modern marine anchoring systems, designed for optimal performance across diverse vessel types and seabed conditions. AM-2 chains are distinguished by their balanced strength-to-weight ratio and proven seabed adhesion characteristics, making them suitable for general commercial and offshore applications where reliability is paramount. Understanding the precise technical parameters is essential for correct specification and safe operational deployment.
Material grade defines the fundamental mechanical properties of the AM-2 chain. Hangzhou Star offers AM-2 chains in both U2 and U3 strength grades. U2 signifies the standard strength level, while U3 denotes a higher tensile strength variant. The selection between U2 and U3 directly impacts the chain’s minimum breaking load (MBL) and its weight per unit length. U3 chains provide increased strength for a given diameter, potentially allowing weight savings in the overall anchor rode system without compromising safety margins. Both grades undergo rigorous heat treatment processes to achieve the required mechanical properties and fatigue resistance necessary for harsh marine environments.
Weight calculation per meter is a critical factor in system design, influencing windlass capacity, stowage requirements, and vessel stability. The weight values provided are theoretical and based on standard steel density; actual weights may vary slightly due to manufacturing tolerances and surface treatment. Holding power, while significantly influenced by the anchor itself and seabed composition, is intrinsically linked to the chain’s weight per meter and its ability to form a stable catenary curve. A sufficient chain scope and weight are vital for absorbing dynamic loads and maintaining the anchor’s optimal pull angle.
Surface finish is paramount for corrosion resistance and longevity. All Hangzhou Star AM-2 chains receive a high-quality, uniform electro-galvanized coating. This process provides a robust barrier against saltwater corrosion, significantly extending service life compared to black chain. The galvanization thickness adheres to ISO 1461 standards, ensuring consistent protection across the entire chain link, including critical areas like the crown and shoulders. Visual inspection for coating integrity is recommended prior to installation.
The following table details the core technical parameters for standard AM-2 anchor chain sizes offered by Hangzhou Star Marine Technology:
| Chain Size (mm) | Grade | Weight per Meter (kg) | Minimum Breaking Load (kN) | Surface Finish |
|---|---|---|---|---|
| 12.5 | U2 | 0.97 | 201 | Electro-Galvanized |
| 12.5 | U3 | 0.97 | 241 | Electro-Galvanized |
| 14.0 | U2 | 1.22 | 253 | Electro-Galvanized |
| 14.0 | U3 | 1.22 | 304 | Electro-Galvanized |
| 16.0 | U2 | 1.59 | 334 | Electro-Galvanized |
| 16.0 | U3 | 1.59 | 401 | Electro-Galvanized |
| 17.5 | U2 | 1.90 | 400 | Electro-Galvanized |
| 17.5 | U3 | 1.90 | 480 | Electro-Galvanized |
| 19.0 | U2 | 2.24 | 476 | Electro-Galvanized |
| 19.0 | U3 | 2.24 | 571 | Electro-Galvanized |
| 20.5 | U2 | 2.62 | 560 | Electro-Galvanized |
| 20.5 | U3 | 2.62 | 672 | Electro-Galvanized |
| 22.0 | U2 | 3.02 | 652 | Electro-Galvanized |
| 22.0 | U3 | 3.02 | 782 | Electro-Galvanized |
| 24.0 | U2 | 3.61 | 795 | Electro-Galvanized |
| 24.0 | U3 | 3.61 | 954 | Electro-Galvanized |
| 26.0 | U2 | 4.26 | 952 | Electro-Galvanized |
| 26.0 | U3 | 4.26 | 1142 | Electro-Galvanized |
| 28.0 | U2 | 4.98 | 1127 | Electro-Galvanized |
| 28.0 | U3 | 4.98 | 1352 | Electro-Galvanized |
| 30.0 | U2 | 5.76 | 1319 | Electro-Galvanized |
| 30.0 | U3 | 5.76 | 1583 | Electro-Galvanized |
| 32.0 | U2 | 6.59 | 1528 | Electro-Galvanized |
| 32.0 | U3 | 6.59 | 1834 | Electro-Galvanized |
| 34.0 | U2 | 7.49 | 1755 | Electro-Galvanized |
| 34.0 | U3 | 7.49 | 2106 | Electro-Galvanized |
| 36.0 | U2 | 8.45 | 1998 | Electro-Galvanized |
| 36.0 | U3 | 8.45 | 2398 | Electro-Galvanized |
| 38.0 | U2 | 9.47 | 2259 | Electro-Galvanized |
| 38.0 | U3 | 9.47 | 2711 | Electro-Galvanized |
| 40.0 | U2 | 10.56 | 2536 | Electro-Galvanized |
| 40.0 | U3 | 10.56 | 3043 | Electro-Galvanized |
| 42.0 | U2 | 11.71 | 2831 | Electro-Galvanized |
| 42.0 | U3 | 11.71 | 3397 | Electro-Galvanized |
| 44.0 | U2 | 12.92 | 3143 | Electro-Galvanized |
| 44.0 | U3 | 12.92 | 3772 | Electro-Galvanized |
| 46.0 | U2 | 14.20 | 3472 | Electro-Galvanized |
| 46.0 | U3 | 14.20 | 4166 | Electro-Galvanized |
| 48.0 | U2 | 15.54 | 3819 | Electro-Galvanized |
| 48.0 | U3 | 15.54 | 4583 | Electro-Galvanized |
| 50.0 | U2 | 16.94 | 4183 | Electro-Galvanized |
| 50.0 | U3 | 16.94 | 5020 | Electro-Galvanized |
| 52.0 | U2 | 18.41 | 4564 | Electro-Galvanized |
| 52.0 | U3 | 18.41 | 5477 | Electro-Galvanized |
All Hangzhou Star AM-2 chains undergo 100% magnetic particle inspection (MPI) for surface defects and full tensile testing per ISO 1704 requirements. Certificates of Conformity, including material test reports (MTRs) and galvanizing certification, are provided with every shipment to meet global regulatory and classification society demands (DNV, LR, ABS, CCS, etc.). Proper handling, storage, and periodic in-service inspection per IMO MSC.1/Circ.1175 guidelines are essential for maintaining operational safety.
Shipbuilding Solutions
Complete Anchoring Solutions for Shipbuilding and Repair: AM-2 Anchor Chain by Hangzhou Star Marine Technology
Hangzhou Star Marine Technology Co., Ltd. delivers comprehensive anchoring solutions tailored for both new shipbuilding projects and vessel repair operations. As a trusted supplier in the maritime industry, we specialize in high-performance anchoring equipment, with the AM-2 anchor chain standing as a critical component in our product lineup. Designed to meet international marine standards, the AM-2 anchor chain ensures operational reliability, structural integrity, and long service life under demanding offshore conditions.
The AM-2 grade anchor chain is engineered for superior mechanical properties, including enhanced tensile strength, impact resistance, and fatigue durability. Manufactured from high-quality alloy steel and subjected to rigorous heat treatment processes—quenching and tempering—the chain achieves optimal hardness and ductility balance. This ensures reliable performance during anchor deployment, holding, and retrieval across various sea states and seabed conditions. Compliance with classification society standards such as CCS, ABS, DNV, LR, and NK guarantees global acceptance and seamless integration into ship designs.
For shipyards and repair facilities, Hangzhou Star Marine Technology offers end-to-end support from technical consultation to just-in-time delivery. Our engineering team collaborates closely with naval architects and shipbuilders to provide customized chain lengths, stud configurations, and certification packages aligned with project specifications. Whether outfitting a new bulk carrier or replacing worn chain on an offshore support vessel, our streamlined logistics and inventory management ensure minimal downtime and project delays.
We understand that time is critical in both construction and dry-dock schedules. Our responsive service model enables rapid quotation, material traceability, and prompt shipment from our warehouse in Hangzhou, China. With ISO 9001-certified quality control systems, every AM-2 chain undergoes non-destructive testing, mechanical verification, and dimensional inspection to ensure consistency and compliance.
The following table outlines the key technical specifications of the AM-2 anchor chain series:
| Parameter | Specification |
|---|---|
| Grade | AM-2 |
| Material | Alloy Steel (Quenched & Tempered) |
| Diameter Range | 20 mm – 84 mm |
| Minimum Tensile Strength | 400 – 480 MPa |
| Minimum Impact Energy (at -20°C) | 55 J |
| Certification | CCS, ABS, DNV, LR, NK, and other IACS members |
| Standards Met | ISO 17003, GB/T 549, EN 13889 |
| Typical Applications | Merchant Vessels, Offshore Platforms, Tugboats, FPSOs |
Hangzhou Star Marine Technology is committed to advancing safety and efficiency in marine operations. By combining advanced manufacturing, strict quality assurance, and responsive customer service, we provide shipbuilders and repair yards with a dependable anchoring solution that meets the highest industry benchmarks. The AM-2 anchor chain is not just a component—it is a cornerstone of vessel safety, and we ensure its flawless integration into every marine project we support.
Packaging & Logistics
Hangzhou Star Marine Technology Co., Ltd.
Professional Export Guide: AM-2 Anchor Chain
Section: Packaging & Logistics
Hangzhou Star Marine Technology implements rigorous, industry-standard packaging protocols for the AM-2 anchor chain to ensure integrity during global maritime transit. Our methodology prioritizes protection against mechanical damage, corrosion, and environmental exposure, adhering strictly to international shipping regulations and customer specifications. All packaging solutions are engineered to withstand the demanding stowage and handling conditions inherent in ocean freight, particularly for heavy, high-value anchoring equipment.
Wooden export cases constitute a primary packaging solution for AM-2 chains, especially for containerized shipments or destinations with specific import requirements. These cases are fabricated exclusively from ISPM 15 compliant lumber. ISPM 15 (International Standards for Phytosanitary Measures No. 15) mandates heat treatment (HT) of wood packaging material to a minimum core temperature of 56°C for at least 30 minutes, effectively eliminating quarantine pests. Each wooden case bears the official, legible ISPM 15 mark certifying compliance, a non-negotiable requirement for entry into most global markets, including the European Union, United States, Australia, and key Asian economies. Internal chain protection involves multi-layer polyethylene moisture barriers, corrosion-inhibiting VCI paper wrapping, and strategic dunnage placement to prevent movement and surface abrasion within the case. Cases are secured with heavy-duty steel strapping and corner protectors.
For bulk shipments or customers specifying reusable/recoverable solutions, we utilize robust, custom-fabricated steel pallets. These pallets provide superior structural stability for stacked chains, optimized for efficient vessel hold or container stowage. Steel pallets eliminate phytosanitary concerns entirely, offering a clean, durable alternative. Chains are meticulously secured to the pallet frame using high-tensile steel strapping and anti-slip mats, ensuring zero shifting during transit. This method is particularly advantageous for project cargo or direct discharge operations.
All AM-2 anchor chain exports originate from China’s premier deep-water ports: Ningbo-Zhoushan Port and Shanghai Port. Both facilities offer world-class infrastructure for handling heavy marine equipment, featuring specialized heavy-lift capabilities, extensive container terminals, and seamless connections to major global shipping lines. Our Ningbo and Shanghai logistics teams coordinate directly with freight forwarders and carriers to ensure precise scheduling, documentation accuracy (including mandatory phytosanitary certificates for wooden packaging), and optimal stowage planning. Pre-shipment inspections verify packaging integrity and load security before release to the carrier. This integrated approach from Hangzhou Star Marine Technology guarantees that AM-2 anchor chains arrive at their destination port in flawless, ready-for-installation condition, minimizing risk and maximizing customer satisfaction.
The following table details the standard packaging specifications for AM-2 anchor chain shipments:
| Packaging Type | Dimensions (L x W x H) | Max Load Capacity | Treatment/Certification | Key Features |
|---|---|---|---|---|
| ISPM 15 Wooden Case | Custom (Chain Length Dependent) | Up to 15,000 kg | Heat Treated (HT), ISPM 15 Marked | Multi-layer moisture barrier, VCI paper, internal dunnage, steel strapping, corner protectors |
| Steel Pallet | Standard 1200x1000mm or Custom | Up to 20,000 kg | Galvanized Steel, No Phytosanitary Risk | Anti-slip mats, high-tensile strapping, reusable design, optimized for stacking |
Contact Star Marine
For marine operators, shipbuilders, and offshore project managers seeking high-performance anchoring solutions, Hangzhou Star Marine Technology Co., Ltd. stands as a trusted global supplier of certified marine equipment. Our flagship product, the AM-2 anchor chain, is engineered to meet the rigorous demands of modern maritime operations, offering superior tensile strength, corrosion resistance, and compliance with international classification standards including ISO 1704, CCS, DNV, ABS, LR, and BV. As a specialized manufacturer with advanced production and quality control systems, we ensure every length of AM-2 chain delivers unmatched reliability in dynamic mooring and anchoring applications.
The AM-2 anchor chain is designed for vessels requiring enhanced load-bearing capacity and durability under extreme environmental conditions. Manufactured from high-grade alloy steel and subjected to precise heat treatment processes, the chain exhibits optimal hardness, impact resistance, and fatigue life. Whether deployed in deepwater offshore moorings, floating platforms, or commercial shipping fleets, the AM-2 specification provides a robust solution that supports operational safety and regulatory compliance.
To support global clients in selecting, sourcing, and integrating the AM-2 anchor chain into their marine systems, we invite direct engagement with our technical export team. At Hangzhou Star Marine Technology, we prioritize responsive, expert-led customer service tailored to the complexities of international procurement, logistics, and marine certification requirements.
For detailed technical specifications, quotation requests, or project consultation, please contact Kacher YE, Product Manager – Anchoring Systems, who leads our export operations for anchoring equipment. With extensive experience in marine hardware supply chains and classification society coordination, Mr. YE provides comprehensive support from initial inquiry through to shipment and after-sales service.
We encourage maritime professionals to reach out directly for customized solutions, volume pricing, and technical documentation packages.
The following table outlines the standard technical parameters for the AM-2 anchor chain:
| Parameter | Specification |
|---|---|
| Material Grade | Alloy Steel (Mn-V based) |
| Chain Diameter Range | 20 mm – 130 mm |
| Minimum Breaking Load (MBL) | As per ISO 1704 AM2 requirements |
| Proof Load | 40% of MBL |
| Heat Treatment | Quenched and Tempered |
| Surface Treatment | Shot Blasted + Protective Coating |
| Certification | CCS, DNV-GL, ABS, LR, BV, RINA available |
| Length per Shackle | 27.5 m (Standard ISO) |
| Tolerance per Shackle | ±3% of total length |
| Packaging | Waterproof Seaworthy Bundle or Drum |
Contact Kacher YE directly via email at [email protected] for immediate assistance. Include vessel type, required chain length, diameter specification, and target delivery port to expedite your inquiry. Hangzhou Star Marine Technology is committed to delivering engineered anchoring solutions with precision, reliability, and global support. Partner with us to ensure your vessel’s mooring system meets the highest standards of safety and performance.
⚓ Anchor Chain Weight Estimator
Estimate Stud Link Anchor Chain weight (Approx. 0.0219d²).
