Marine Chains
MOORING CHAIN HOT DIP GALVANIZED GRADE 43
A welded long-link chain made from carbon steel with a hot dip galvanized finish, designed for mooring applications where corrosion resistance and flexibility are required. The longer link allows shackle attachment at any point along the chain, not just the end, improving adaptability in marine anchoring and mooring systems. It is proof tested with a 4:1 design factor and is not suitable for overhead lifting.
- Material
- Carbon steel Processing: Welded
- Finish
- Painting, hot dip galvanized Ultimate load is at least 4 times at working load limit
- 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 Mooring Chain Hot Dip Galvanized Grade 43 Gives You
- Hot dip galvanized finish resists saltwater corrosion and extends service life in marine environments
- Long link design allows shackle connection at any point along the chain, increasing flexibility and installation options
- Welded construction provides consistent strength and dimensional stability under dynamic mooring loads
- Proof tested with a 4:1 design factor, ensuring minimum breaking load is four times the working load limit
- Carbon steel body offers high tensile strength and impact resistance in harsh offshore conditions
- Long link geometry reduces stress concentration at bends, improving fatigue life during repeated mooring cycles
- No need for end fittings or special terminations—shackles can be inserted anywhere along the chain length
Application Scenarios
Where Mooring Chain Hot Dip Galvanized Grade 43 Is Used
- Mooring vessels at offshore platforms or fixed terminals where chain must be secured at multiple points along its length
- Anchoring floating storage units or production modules in coastal or deepwater environments
- Securing marine structures such as breakwaters or floating docks with adjustable chain lengths and connection points
- Marine operations requiring chain to be spliced or reconfigured in the field without cutting or welding
- Port-side mooring systems where chain is exposed to seawater and frequent wet-dry cycles
Who It Is For
Buyers This Product Is Built For
- Marine contractors installing or maintaining mooring systems for offshore platforms and floating terminals
- Shipyards specifying mooring chain for newbuild vessels and offshore support craft
- Port authorities managing mooring infrastructure for berthing and anchoring operations
- Oil and gas operators deploying mooring lines for floating production storage and offloading (FPSO) units
- Rigging distributors carrying marine chain products who need flexible, corrosion-resistant options
Problems It Solves
Problems This Product Removes
- Corrosion damage from saltwater exposure on uncoated or poorly finished chain in marine service
- Inflexibility of short-link chains that require end fittings and limit where shackles can be attached
- Need to cut or weld chain to adjust length or add connections, increasing risk and downtime
- Lack of proof testing and traceable design factors in low-cost chain products used in critical mooring systems
- Overhead lifting risks when using chain not rated for vertical load applications
- Multiple suppliers needed for chain, shackles, and fittings when a single flexible chain system would suffice
Technical Features
Technical Features
- Welded long-link construction in carbon steel with hot dip galvanized finish
- Proof load tested with minimum breaking load four times the working load limit
- Long link geometry allows shackle attachment at any point along the chain length
- Working load limit stamped on the chain for traceability and field identification
- Design factor of 4:1 as standard, consistent with marine chain safety practices
- Hot dip galvanized surface finish to resist rust and degradation in saltwater and humid environments
- No end fittings required—shackles can be inserted anywhere on the chain, not just at the end
Specifications
Mooring Chain Hot Dip Galvanized Grade 43 Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Nominal Size | 3/8" to 3/4" |
|---|---|
| Material | Carbon steel |
| Processing | Welded |
| Surface Finish | Hot dip galvanized |
| Design Factor | 4:1 |
| Proof Test | Tested at working load limit |
| Minimum Breaking Force | the published multiple of the working load limit |
| Application | Mooring applications |
| Working Load Limit Range | 4,050 lbs to 15,150 lbs |
| Chain Length | Available in standard lengths, custom lengths on request |
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 used for the chain body, providing high tensile strength and weldability
- Hot dip galvanized coating applied after welding to ensure full coverage and corrosion protection
- Weld metal matched to base material to maintain strength and integrity at joint points
- Galvanizing layer thickness sufficient to meet marine exposure requirements
Manufacturing Process
How This Product Is Made
1Raw carbon steel material cut to length and formed into long links
2Welding of the links using automated or semi-automated processes with controlled heat input
3Post-weld stress relief and dimensional inspection to ensure alignment and fit
4Hot dip galvanizing bath immersion for full corrosion protection
5Proof load testing on production batches to verify 4:1 design factor
6Stamping of working load limit and traceability marks on each chain segment
7Packing and labeling for export with documentation prepared in house
Quality Control
Quality Control On Every Batch
- Proof load test conducted on each production batch to confirm minimum breaking load is four times the working load limit
- Dimensional tolerance check against published size table for inside length, width, and diameter
- Visual inspection for weld quality, galvanizing uniformity, and surface defects
- Breaking strength validation through sample testing of representative batches
- Material Test Certificate to EN 10204 3.1 supplied with orders on request
- Third-party inspection accepted at the Qingdao warehouse before shipment
Documentation
Certification And Documentation Supplied
- Material Test Certificate to EN 10204 3.1 supplied with orders
- Working load limit and traceability marking stamped on the chain body
Customisation
Customisation Options
- Custom lengths available upon request to match specific mooring system requirements
- Private label and OEM marking for brand-specific packaging and labeling
- Surface finish options include hot dip galvanizing or custom painting to order
- Chain can be supplied in bulk or pre-assembled with shackles at specified intervals
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 |
|---|---|
| Short link chain | Long link allows shackle attachment anywhere along the chain, not just at the end, improving flexibility in mooring setups |
| Ordinary mild steel chain | Hot dip galvanizing provides superior corrosion resistance in marine environments, while mild steel without coating degrades faster |
| Wire rope | Chain offers better abrasion resistance and does not stretch under load, but is heavier and less flexible than wire rope |
| Galvanized wire rope | Chain provides more consistent load distribution and better resistance to crushing, but wire rope is lighter and easier to handle in long runs |
Use Guide
How To Use And Inspect Mooring Chain Hot Dip Galvanized Grade 43
- Do not exceed the stamped working load limit under any circumstances
- Inspect the chain before each use for signs of wear, deformation, or damage to the galvanizing
- Ensure shackles are properly fitted and secured at any point along the chain, not just the ends
- Avoid sharp bends or kinks that could compromise the welds or reduce chain strength
- Keep the chain dry and clean when not in use to preserve the galvanizing layer
- Retire the chain if the galvanizing is severely worn, the link is deformed, or the working load limit marking is illegible
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Answers
Mooring Chain Hot Dip Galvanized Grade 43 FAQ
Is this chain suitable for overhead lifting?
No. This chain is designed for mooring applications only and is not rated for overhead lifting. Exceeding the working load limit or using it in vertical lift scenarios is unsafe.
Can I attach a shackle anywhere along the chain?
Yes. The long link design allows shackle attachment at any point along the chain, not just at the end, which improves flexibility in mooring and anchoring setups.
What is the design factor for this chain?
A standard 4:1 design factor is applied, so the minimum breaking load is four times the stated working load limit. This is consistent with marine chain safety standards.
What certificates are provided with the order?
A Material Test Certificate to EN 10204 3.1 is supplied with each order on request. Every batch is proof load tested and dimensionally inspected before release.
Can I get custom lengths or pre-assembled chains?
Yes. Custom lengths are available, and chains can be supplied with shackles pre-attached at specified intervals. Contact us for configuration details.
How is the chain protected against corrosion?
The chain is hot dip galvanized after welding, providing a durable zinc coating that resists saltwater and humid environments common in marine service.
What is the difference between long link and short link chain?
Long link chains allow shackle attachment at any point along the chain, improving flexibility. Short link chains require end fittings and limit where connections can be made.
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