Hardware Chains
GRADE 30 PROOF COIL CHAIN ASTM80
A welded link chain made from low carbon steel, meeting ASTM A413 standards, with a proof load test of at least the rated load and a 4:1 design factor. Available in nominal sizes from 1/8 inch to 3/4 inch, with self-color, zinc plated, or hot dip galvanized finishes. Designed for general utility use in farm, industrial, and home applications. Not for overhead lifting.
- Material
- Carbon steel Processing: Welded
- Finish
- Self-color, zinc plated, hot dip galvanized Ultimate load is at least 4 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 Grade 30 Proof Coil Chain ASTM80 Gives You
- Meets ASTM A413 specification for general utility chain with a 4:1 design factor
- Proof load tested
- Welded construction provides consistent strength and uniformity across links
- Available in self-color, zinc plated, or hot dip galvanized finishes for corrosion resistance
- Nominal sizes from 1/8 inch to 3/4 inch cover a broad range of light to medium-duty applications
- Embossed with 'RG30' for traceability and material identification
- Suitable for securing, anchoring, and pulling in non-lifting environments
Application Scenarios
Where Grade 30 Proof Coil Chain ASTM80 Is Used
- Securing cargo on trailers and flatbed trucks during transport
- Farm equipment tie-downs and livestock pen restraints
- Industrial machine anchoring and equipment positioning
- Home workshop rigging for tools and light machinery
- Temporary fencing and barrier systems in construction zones
- Hauling and dragging operations on non-lifting equipment
- Supporting tension in non-critical mechanical systems
Who It Is For
Buyers This Product Is Built For
- Logistics and transport companies needing durable tie-down chains for freight
- Farm equipment suppliers specifying chains for tractor and implement securing
- Industrial maintenance teams using chains for machine setup and alignment
- Contractors building temporary structures or barriers on site
- Workshop owners requiring reliable, low-cost chains for tool and equipment handling
- Rigging distributors carrying general utility chains for non-lifting applications
- Manufacturers of outdoor equipment needing chains for assembly or packaging
Problems It Solves
Problems This Product Removes
- Need for a chain that meets ASTM A413 standards without requiring overhead lifting certification
- Lack of traceable marking on standard chains used in critical tie-downs
- Inconsistent strength in non-standard or untested welded chains
- Corrosion damage in outdoor or wet environments without proper surface treatment
- Buying chains from multiple suppliers for different finishes and sizes
- Uncertainty about proof load or breaking strength when selecting a chain
- Using chains not rated for repeated tension and dynamic loads in field applications
Technical Features
Technical Features
- Welded link construction for consistent strength and alignment
- Low carbon steel material with proof load testing to ASTM A413
- 4:1 design factor with minimum breaking load at four times the working load limit
- Embossed 'RG30' marking on each link for traceability
- Available in self-color, zinc plated, or hot dip galvanized finishes
- Nominal sizes from 1/8 inch to 3/4 inch with documented working load limits
- Proof test load minimum of the rated load for safety margin
Specifications
Grade 30 Proof Coil Chain ASTM80 Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Material | Low carbon steel |
|---|---|
| Standard | ASTM A413 |
| Design Factor | 4:1 minimum breaking load to safe working load |
| Surface Finish | Self-color, zinc plated, hot dip galvanized |
| Nominal Size Range | 1/8 inch to 3/4 inch |
| Working Load Limit Range | 375 lbs to 9,750 lbs |
| Min. Breaking Force | 1,600 lbs to 39,000 lbs |
| Max. Length Per 100 Links | 94 in to 220 in |
| Max. Weight Per 100 FT | 19 lbs to 612 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
- Low carbon steel for weldability and consistent tensile strength
- Zinc plating for corrosion resistance in moderate environments
- Hot dip galvanizing for enhanced outdoor and wet service life
- Self-color finish for base material with no additional coating
Manufacturing Process
How This Product Is Made
1Cutting of steel wire to nominal diameter
2Welding of links with precision automated welders
3Proof load testing on production batches
4Embossing of 'RG30' marking on each link
5Surface finishing by self-color, zinc plating, or hot dip galvanizing
6Inspection for weld integrity and dimensional consistency
7Packing and labeling for export
Quality Control
Quality Control On Every Batch
- Proof load test on production batches to verify minimum the rated load
- Dimensional tolerance check against published size table
- Visual inspection for weld defects and surface flaws
- Material Test Certificate to EN 10204 3.1 supplied with orders
- Breaking strength validation to confirm 4:1 design factor
- Traceability marking stamped on each link
- Third-party inspection accepted at the China warehouse before shipment
Customisation
Customisation Options
- Custom tonnage stamping on links for specific load marking
- Private label and OEM marking available on request
- Finish selection in self-color, zinc plated, or hot dip galvanized
- Custom packaging configurations for carton and pallet loading
- Custom lengths or bulk packaging for large volume 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 |
|---|---|
| Ordinary mild steel chain | G30 proof coil chain has proof testing and embossed marking, while ordinary chain lacks verification and traceability |
| Galvanized chain from unknown source | This chain meets ASTM A413 and has documented proof load, while others may not be tested or certified |
| Overhead lifting chain | G30 is not rated for overhead lifting and lacks the certification required for lifting applications |
| Rope sling | Chain offers higher abrasion resistance and durability in dragging and securing tasks where rope would wear quickly |
Use Guide
How To Use And Inspect Grade 30 Proof Coil Chain ASTM80
- Never exceed the stamped working load limit on the chain
- Inspect links for deformation, weld cracks, or surface wear before each use
- Use only in non-lifting applications such as tie-downs, anchoring, and dragging
- Avoid sharp bends or side loading that can reduce strength and cause failure
- Clean and dry the chain after exposure to moisture to maintain finish
- Replace the chain if the 'RG30' marking is illegible or if any link shows damage
- Do not use in overhead lifting, hoisting, or suspended load scenarios
Related Products
Often Ordered With This Item
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Custom Grade 30 Safety Chain Assembly: Long Link Galvanized Chain with Bracket (Production per Drawing/Sample)
Gradw 30 Proof Coil Chain NACM2010
GRADE 43 HIGH TEST CHAIN NACM2010
GRADE43 HIGH TEST CHAIN ASTM80
DIN5685A/C SHORT LINK / LONG LINK CHAIN
TWIST LINK CHAIN-NACM2010 MACHINE CHAIN
STRAIGHT LINK COIL CHAIN - NACM2010
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Answers
Grade 30 Proof Coil Chain ASTM80 FAQ
Is this chain suitable for overhead lifting?
No. This chain is not rated for overhead lifting and does not meet lifting-specific standards such as ASME B30.26 or EN 1492.
What is the design factor for this chain?
A standard 4:1 design factor, so the minimum breaking load is four times the stated safe working load.
Can I get a Material Test Certificate?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied with every order.
What finishes are available?
Self-color, zinc plated, or hot dip galvanized finishes are available on request.
What is the proof test load?
The proof test load is a minimum of the rated load for each size.
Can you custom stamp our brand or tonnage?
Yes. Custom tonnage stamping and private label marking are available.
How is it packed for export?
Standard cartons on pallets. Custom packing configurations are available to suit your warehouse or retail needs. Free two-month storage in Qingdao warehouse is available for shipment consolidation.
Need A Quote On Grade 30 Proof Coil Chain ASTM80
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