Hardware Chains
GRADE43 HIGH TEST CHAIN ASTM80
A high test welded chain in Grade 43 carbon steel, meeting ASTM A413 specifications, designed for load binding, towing, logging, and similar industrial applications. It features a 3:1 design factor, proof load tested, and available in self-color, zinc plated, or hot dip galvanized finishes. Not for overhead lifting.
- Material
- Carbon steel Processing: Welded
- Finish
- Self-color, zinc plated, hot dip galvanized Ultimate load is at least 3 times at working load limit
- Catalogue Family
- Hardware 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 GRADE43 High Test Chain ASTM80 Gives You
- Meets ASTM A413 specifications with a 3:1 design factor for consistent performance under dynamic load
- Welded construction ensures uniform strength and resistance to elongation under tension
- Available in self-color, zinc plated, or hot dip galvanized finishes to suit corrosive or outdoor environments
- Proof tested to validate strength and reliability before shipment
- Nominal sizes from 1/4 inch to 5/8 inch with working load limits up to 14,200 lbs
- Embossed with 'RG43' for traceability and material grade identification
- Suitable for repeated use in high-stress applications like towing and securing heavy loads
Application Scenarios
Where GRADE43 High Test Chain ASTM80 Is Used
- Securing heavy machinery and equipment on flatbed trailers during long-haul transport
- Towing operations in mining and quarrying where chain must resist abrasion and shock loading
- Logging operations where chains are used to drag or bind felled timber under rough terrain
- Industrial load binding on construction sites where chains must hold loads during movement
- Marine dockside operations requiring corrosion-resistant chains for mooring or cargo restraint
- Heavy equipment transport where chains are used to stabilize loads during transit
Who It Is For
Buyers This Product Is Built For
- Logistics and freight companies requiring durable chains for securing cargo on trucks and trailers
- Mining and quarrying contractors specifying chains for heavy haul and equipment towing
- Construction firms using chains for on-site load binding and equipment anchoring
- Marine and port operators needing corrosion-resistant chains for mooring and cargo restraint
- Rigging distributors carrying a chain range who need a high test option with clear marking
- Industrial maintenance teams replacing worn chains in fixed or mobile equipment
Problems It Solves
Problems This Product Removes
- Chain failure due to inadequate design factor or unverified strength in high-stress applications
- Corrosion damage in outdoor or marine environments due to lack of protective finish
- Unclear material grade or traceability leading to misuse or incorrect load rating
- Using mild steel chains in dynamic applications where higher strength and fatigue resistance are needed
- Buying chains from multiple suppliers for different finishes or grades, increasing procurement complexity
- Lack of proof testing and documented strength validation leading to safety risks
Technical Features
Technical Features
- Welded link construction in Grade 43 carbon steel meeting ASTM A413 standards
- 3:1 design factor with minimum breaking force at least three times the working load limit
- Proof tested to validate strength and integrity before shipment
- Embossed with 'RG43' for material grade and manufacturer traceability
- Available in self-color, zinc plated, or hot dip galvanized surface finishes
- Working load limit and proof test values clearly defined for each nominal size
- Not rated for overhead lifting; intended for load binding, towing, and securing
Specifications
GRADE43 High Test Chain ASTM80 Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Nominal Chain Size | 1/4 inch to 5/8 inch |
|---|---|
| Material | Carbon steel Grade 43 |
| Standard | ASTM A413 |
| Design Factor | 3:1 |
| Proof Test (Min.) | 6,400 lbs to 21,200 lbs |
| Working Load Limit (Max.) | 2,600 lbs to 14,200 lbs |
| Minimum Breaking Force | 7,750 lbs to 42,400 lbs |
| Surface Finish | Self-color, zinc plated, hot dip galvanized |
| Length Per 100 Links | 98 in to 194 in |
| Weight Per 100 FT | 84 lbs to 425 lbs |
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 Grade 43 used for high tensile strength and weldability
- Welded joints for consistent load transfer and resistance to elongation
- Zinc plating for moderate corrosion resistance in outdoor or humid environments
- Hot dip galvanizing for enhanced protection in marine or high-moisture service
- Self-color finish for applications where coating is not required
Manufacturing Process
How This Product Is Made
1Raw material inspection and verification of carbon steel Grade 43
2Cutting and forming of chain links to nominal dimensions
3Welding of links using controlled processes to maintain joint integrity
4Heat treatment and stress relief to ensure consistent mechanical properties
5Surface finishing by self-color, zinc plating, or hot dip galvanizing
6Embossing of 'RG43' on each link for traceability
7Proof load testing on production batches
8Final inspection and packing for export
Quality Control
Quality Control On Every Batch
- Proof load test conducted on each production batch before release
- Dimensional tolerance checked against published size tables
- Breaking strength validated to confirm the 3:1 design factor
- Material Test Certificate to EN 10204 3.1 supplied with orders
- Working load limit and grade marking stamped on the chain
- 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
- Proof load testing and breaking strength validation documented
- Working load limit and grade marking stamped on the chain
Customisation
Customisation Options
- Custom tonnage stamping on request
- Private label and OEM marking available
- Surface finish to order: self-color, zinc plated, or hot dip galvanized
- Custom lengths and packaging configurations for bulk or retail use
- Packing cartons and pallets configured to suit warehouse or shipping requirements
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 |
|---|---|
| Ordinary mild steel chain | Grade 43 high test chain offers higher tensile strength and better fatigue resistance, suitable for dynamic loads where mild steel would stretch or fail |
| Short link chain | Long link chain has better resistance to kinking and is easier to handle in heavy-duty applications, though short link is more compact |
| Galvanized mild steel chain | Grade 43 chain has higher strength and a 3:1 design factor, while galvanized mild steel may have lower breaking strength and no defined design factor |
| Overhead lifting chain | This chain is not rated for overhead lifting; overhead chains require a 4:1 design factor and different certification standards |
Use Guide
How To Use And Inspect GRADE43 High Test Chain ASTM80
- Do not exceed the working load limit stated for the chain size
- Inspect the chain before each use for wear, deformation, or surface damage
- Use only in applications such as load binding, towing, or logging—never for overhead lifting
- Avoid sharp bends or side loading that can cause stress concentration
- Clean and dry the chain after exposure to saltwater or moisture to prevent corrosion
- Replace the chain if the link shows visible deformation, elongation, or if the marking is unreadable
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GRADE 43 HIGH TEST CHAIN NACM2010
GRADE 30 PROOF COIL CHAIN ASTM80
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TWIST LINK CHAIN-NACM2010 MACHINE CHAIN
STRAIGHT LINK COIL CHAIN - NACM2010
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Answers
GRADE43 High Test Chain ASTM80 FAQ
What is the design factor for this chain?
A standard 3:1 design factor, so the minimum breaking force is at least three times the stated working load limit.
Is this chain suitable for overhead lifting?
No. This chain is not rated for overhead lifting. It is intended for load binding, towing, and logging applications only.
What finishes are available?
Self-color, zinc plated, and hot dip galvanized finishes are available. Choose based on environmental exposure and corrosion resistance needs.
What standards does this chain meet?
It meets the latest revision of ASTM A413 specifications for high test welded chains in Grade 43 carbon steel.
Can you supply a Material Test Certificate?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied with every order upon request.
How is the chain marked?
Each link is embossed with 'RG43' to indicate the material grade and manufacturer traceability.
Can you customize the length or packing?
Yes. Custom lengths, carton configurations, and pallet setups are available to suit your warehouse or shipping needs.
Need A Quote On GRADE43 High Test Chain ASTM80
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