Marine Chains
DIN763 LONG LINK CHAIN
A galvanized welded long link chain manufactured to DIN763 standard, made from carbon steel with a hot dip galvanized, electro-galvanized, or self-color finish. It features a 4:1 design factor and is proof tested. Suitable for engineering, industrial, agricultural, and marine applications where moderate strength and corrosion resistance are required. Not for overhead lifting. Available in Grade 5 and Grade 7 options.
- Material
- Carbon steel Processing: Welded
- Finish
- hot dip galvanized, electro-galvanized or self-color Ultimate load is at least 4 times at working load limit
- Packing
- Carton, gunny bag, case or steel drum. Meet the latest guidelines of DIN763 standard
- Catalogue Family
- Marine Chains
- Certificates
- EN 10204 3.1 material test certificate on request
CAD files are supplied on request via WhatsApp or email rather than published for open download.
Key Benefits
What DIN763 Long Link Chain Gives You
- Galvanized finish resists rust and corrosion in marine and outdoor environments
- Welded construction provides consistent link integrity and uniform strength
- 4:1 design factor ensures a minimum breaking load four times the working load limit
- Proof load testing confirms performance before shipment
- Available in multiple finishes including hot dip galvanized, electro-galvanized, and self-color
- Grade 5 and Grade 7 versions available for higher strength requirements
- Long link design reduces wear on rope and fittings when used in dynamic tension applications
Application Scenarios
Where DIN763 Long Link Chain Is Used
- Marine mooring and anchoring systems where saltwater exposure demands corrosion resistance
- Industrial rigging for securing cargo on trailers and flatbeds during transport
- Agricultural equipment tie-downs and ground anchoring in field operations
- Engineering projects requiring temporary ground or structural anchoring
- Dockside and port operations where chains are exposed to moisture and weather
- Heavy-duty winching and pulling applications in construction and mining
- Support systems for temporary structures and scaffolding where chain strength and durability are critical
Who It Is For
Buyers This Product Is Built For
- Marine contractors specifying mooring and anchoring chains for vessels and offshore platforms
- Logistics and transport companies securing freight on flatbed trailers
- Construction firms using chains for ground anchoring and temporary rigging
- Agricultural equipment manufacturers integrating chains into field machinery
- Industrial suppliers sourcing durable, corrosion-resistant chains for general use
- Rigging distributors carrying a range of chain types with standardized testing and marking
Problems It Solves
Problems This Product Removes
- Corrosion damage from saltwater or outdoor exposure in marine and industrial environments
- Chain failure due to insufficient design factor or lack of proof testing
- Inconsistent link strength from non-welded or poorly manufactured chains
- Need for multiple chain types from different suppliers for different finishes and grades
- Lack of traceability and certification for chain strength and material compliance
- Overhead lifting risk when using chains not rated for vertical load applications
- Inability to match chain strength to application duty without custom options
Technical Features
Technical Features
- Welded long link construction to DIN763 standard
- Carbon steel body with hot dip galvanized, electro-galvanized, or self-color finish
- 4:1 design factor with minimum breaking load four times the working load limit
- Proof load tested on production batches before release
- Grade 5 and Grade 7 versions available for higher strength requirements
- Chain size, pitch, width, working load, test force, and breaking force clearly specified
- D, L, and B tolerances provided for each chain size to ensure fit and function
Specifications
DIN763 Long Link Chain Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Standard | DIN763 |
|---|---|
| Material | Carbon steel |
| Processing | Welded |
| Surface Finish | Hot dip galvanized, electro-galvanized, or self-color |
| Design Factor | 4:1 minimum breaking load to safe working load |
| Proof Load Testing | Performed on production batches |
| Grade Options | Grade 5 and Grade 7 available |
| Application | Engineering, industrial, agricultural, marine |
| Not For | Overhead lifting |
Full size table on request. The catalogue publishes a full dimension and capacity table for this item. Ask on WhatsApp or by email and we will send it as a PDF.
Materials
Materials And Finishes
- Carbon steel for the chain links, providing high tensile strength and durability
- Hot dip galvanized coating for long-term corrosion resistance in harsh environments
- Electro-galvanized finish for a smoother, more uniform protective layer
- Self-color finish for applications where galvanization is not required
- Grade 5 and Grade 7 steel options available for higher strength and wear resistance
Manufacturing Process
How This Product Is Made
1Raw carbon steel material cut to size for chain links
2Welding of links using automated or semi-automated processes
3Heat treatment to improve strength and toughness of the welded joints
4Surface treatment including hot dip galvanizing, electro-galvanizing, or self-color finish
5Proof load testing on each production batch
6Dimensional inspection against DIN763 tolerances
7Marking of chain size, working load limit, and grade on each link
8Packing in cartons, gunny bags, cases, or steel drums as per order
Quality Control
Quality Control On Every Batch
- Proof load test conducted on each production batch before shipment
- Dimensional tolerance check against DIN763 specifications for D, L, and B
- Breaking strength validation to confirm 4:1 design factor
- Visual inspection for weld quality, surface finish, and marking clarity
- Material Test Certificate to EN 10204 3.1 issued with the order on request
- Third-party inspection accepted at the Qingdao warehouse before shipment
Customisation
Customisation Options
- Custom tonnage stamping on chain links
- Private label and OEM marking available
- Finish options: hot dip galvanized, electro-galvanized, or self-color
- Grade 5 and Grade 7 versions available upon request
- Custom packing configurations including carton, gunny bag, case, or steel drum
- Custom chain length or spooling options for bulk orders
Compare
How It Compares With The Alternatives
An honest read on where this pattern wins and where another one would serve you better.
| Alternative | Honest Trade Off |
|---|---|
| DIN766 Short Link Chain | DIN763 long link chain has larger links and better resistance to wear in dynamic applications, but DIN766 offers higher strength in compact form |
| Rope or synthetic slings | Chain provides superior abrasion resistance and durability in high-wear environments, but is heavier and less flexible |
| Non-galvanized chain | Galvanized finish extends service life in corrosive environments but may reduce surface hardness slightly |
| Grade 3 chain | Grade 5 and Grade 7 chains offer higher strength and better performance under repeated loading, but cost more |
Use Guide
How To Use And Inspect DIN763 Long Link Chain
- Always operate within the stated working load limit for the chain size
- Inspect chain links before each use for deformation, cracks, or wear
- Avoid side loading or sharp bends that can reduce strength and cause failure
- Use only with compatible fittings and hardware rated for the same load
- Clean and dry chain after exposure to saltwater or moisture to maintain finish
- Retire chain if the marking is illegible, links show deformation, or welds are cracked
- Do not use for overhead lifting—this chain is not certified for vertical suspension
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Answers
DIN763 Long Link Chain FAQ
Is this chain suitable for overhead lifting?
No. DIN763 long link chain is not rated for overhead lifting and should not be used in vertical suspension applications.
What finishes are available?
Hot dip galvanized, electro-galvanized, and self-color finishes are available. Custom surface finishes can be arranged.
What grades are available?
Grade 5 and Grade 7 chains are available. Grade 3 is also available as a standard option.
Can you provide Material Test Certificates?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied on request with every order.
What is the design factor?
A standard 4:1 design factor is used, meaning the minimum breaking load is four times the stated working load limit.
How is the chain packed?
Packing options include cartons, gunny bags, cases, or steel drums. Custom packing configurations are available upon request.
Can you customize the chain length or marking?
Yes. Custom tonnage stamping, private label marking, and custom packing configurations are standard options.
Need A Quote On DIN763 Long Link Chain
Send the sizes, the finish and the quantity on WhatsApp or by email. You get a priced reply within 24 hours and a straight answer on stock.
We reply within 24 hours on WhatsApp or by email. Send a drawing, a photo or a bill of materials and we will quote it as it stands.