Grade 3 Stud Link Anchor Chain

Company & Product Overview

We have been producing high-quality graded anchor chains since 1986, focusing on the research and manufacturing of Grade 3 stud link anchor chains. Our products cover a full range of sizes from 16mm to 122mm in diameter, and we can customize production according to specific customer needs. We also supply offshore mooring chains and various anchor chain accessories, forming a complete product system. As our core product, the Grade 3 stud link anchor chain strictly adheres to ISO international standards, is made of high-strength steel, and undergoes a special heat treatment process. Compared to Grade 2 anchor chains, its tensile strength and fatigue resistance are significantly improved, enabling it to withstand harsh marine environments and providing reliable mooring protection for vessels and offshore engineering projects.

For Grade 3 stud link anchor chains, choose CSAC Chain. We offer full-process customization services, authoritative certification support, and comprehensive after-sales guarantees, ensuring that every batch of products meets international standards and customer requirements.

Product Features

I. Core Product Features

• High-Strength Material: Grade 3 stud link anchor chains are manufactured using high-quality, high-strength steel. The steel undergoes rigorous selection to ensure uniform material properties and stable performance, capable of withstanding the immense tensile and impact forces of the marine environment.
• Special Heat Treatment Process: Compared to Grade 2 anchor chains, Grade 3 stud link anchor chains undergo an additional heat treatment process, effectively improving the product's tensile strength and fatigue resistance, extending its service life, and reducing maintenance costs.
• Strict Compliance Standards: Manufactured entirely in accordance with ISO international standards, all anchor chains offer certifications from nine major international authorities, including CCS, BV, and DNV, meeting the regulatory requirements of major maritime nations worldwide. They can be directly used on international vessels and in offshore engineering projects.
• Full Size Coverage: Diameters range from 16mm to 122mm, covering various needs from small vessels to large ocean-going vessels and offshore engineering projects. Custom-made Grade 3 stud link anchor chains can be customized to meet specific vessel types and operating environments.
• Stable and reliable structure: It adopts a chain structure design with crossbars on the chain links. Under the same size and material, it has higher strength and less deformation. It is not easy to twist when stacking, and it is suitable for the anchoring needs of modern large and medium-sized ships.

II. Technological Advantages

In the production process of Grade 3 stud link anchor chains, we integrate independently developed core technologies and internationally advanced manufacturing experience, forming a unique technological advantage that ensures our product quality is at the forefront of the industry.

Intelligent manufacturing technology: It possesses a Luxembourg patent—Automatic Production Device of Chain Stud, which automates and standardizes the production of chain studs, improving production efficiency while ensuring the dimensional accuracy and connection strength of each chain link.

Advantages of welding technology: The advanced flash welding process replaces the traditional forging and casting process, resulting in high-strength and stable welded joints. This avoids the drawbacks of poor impact resistance of cast steel anchor chains and unstable quality of forged anchor chains, and meets the mainstream production standards of modern ship anchor chains. 

R&D and Innovation Capabilities: In deep collaboration with Jiangsu University of Science and Technology, the "High-Strength Marine Cable Intelligent Control Optimization Design Research Institute" has been established, focusing on the technological upgrading and product innovation of Grade 3 stud link anchor chains and near-shore mooring chains, continuously improving product performance and competitiveness.

Quality Inspection Technology: A comprehensive quality inspection system has been established, with rigorous testing at every stage from raw material entry and production process to finished product delivery. Equipped with professional testing equipment, this ensures that every Grade 3 stud link anchor chain meets quality standards.

Test load:

Why Choose Us?

With more than three decades of expertise, Zhoushan Zhongnan Anchor Chain Co., Ltd is recognized as one of leading China anchor chain factories with advanced manufacturing facilities, including 5#, 6#, 7#, 8#, and 9# flash-welding chain-making machines. We produce Grade 3 stud link anchor chains with automated PC controlled processes, ensuring consistent quality in every batch. Our in-house testing laboratory, which is equipped with impact testers, tensile machines, and a proprietary 1200 ton chain tension test machine, guarantees that every chain exceeds industry requirements.

Our chains have been successfully exported to European and Southeast Asian countries, earning trust with quality products worldwide.

FAQ

Q1: What are the main differences between Grade 3 and Grade 2 anchor chains?

A1: The core difference lies in the heat treatment process and mechanical properties. anchor chains undergo an additional heat treatment process, significantly improving their tensile strength and fatigue resistance compared to Grade 2 anchor chains. They can withstand greater tensile forces and are more suitable for applications requiring high anchor chain performance, such as large vessels and offshore engineering projects, and also have a longer service life.

Q2: What certifications do your anchor chains offer?

A2: All our Grade 3 stud link anchor chains offer nine major international certifications, including China CCS, France BV, Norway DNV, USA ABS, Japan NK, UK LR, Russia RS, South Korea KR, and Italy RINA. These meet the maritime regulations of different countries and regions and are suitable for international vessels and offshore engineering projects.

Q3: Can the diameter range of Grade 3 stud link anchor chains be customized?

A3: Yes. Our Grade 3 stud link anchor chains typically range in diameter from 16mm to 122mm. We can customize anchor chains of different diameters and lengths to meet specific customer needs, and also produce corresponding anchor chain accessories to satisfy individual purchasing requirements.

Q4: Do you provide after-sales support after purchase?

A4: Yes. We provide comprehensive after-sales support for all customers who purchase stud link anchor chains, including product quality traceability, technical guidance, and troubleshooting services. If quality problems occur during normal use, we will respond promptly and assist customers in resolving the issues to ensure normal operation.

Q5: What manufacturing process do you use for your chains?

A5: Our chains use advanced flash welding technology, replacing traditional casting and forging processes. This technology offers advantages such as advanced and simple production, reasonable cost, and stable quality. The welded joints have high strength and can meet the requirements of harsh marine environments. It is currently the most widely used anchor chain manufacturing process on merchant ships.