Tie Down Chains
GRADE 70 TRANSPORT CHAIN NACM2010
A welded link chain in Grade 70 alloy steel, designed for cargo securement, towing and logging. Meets NACM2010 specifications and D.O.T. regulations. Quenched and tempered, proof tested with a 4:1 design factor. Yellow chromated zinc plated finish resists corrosion in outdoor and industrial environments. Not for overhead lifting.
- Material
- Alloy steel Processing: Welded
- Finish
- Yellow chromated zinc plated Ultimate load is 4 times at working load limit
- Packing
- Drum + Steel pallets
- Catalogue Family
- Tie Down 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 70 Transport Chain NACM2010 Gives You
- Meets NACM2010 and D.O.T. standards for transport chain applications
- Grade 70 alloy steel with quench and temper treatment for high tensile strength
- 4:1 design factor ensures safe working load limit is maintained under dynamic loads
- Yellow chromated zinc plated finish resists rust and wear in harsh outdoor conditions
- Welded link construction provides consistent strength and uniformity across the chain
- Proven performance in cargo securement, towing and logging with no risk of sudden failure
- Available in multiple nominal sizes from 1/4 inch to 3/7 inch for diverse load requirements
Application Scenarios
Where Grade 70 Transport Chain NACM2010 Is Used
- Securing heavy machinery and industrial equipment on flatbed trailers during long-haul transport
- Towing large vehicles or construction equipment on off-road or public road routes
- Logging operations where chains are used to pull or stabilize felled timber
- Industrial yard operations requiring reliable, repeatable chain performance under vibration
- Cargo restraint on rail flatcars and intermodal containers where chain strength and durability are critical
- Marine transport applications involving tiedown chains for heavy deck cargo
Who It Is For
Buyers This Product Is Built For
- Transport and logistics companies specifying securement chains for freight trailers
- Fleet operators maintaining recovery and towing gear for heavy-duty vehicles
- Logging contractors needing durable chains for timber extraction and transport
- Rigging distributors stocking chains for cargo control and tie-down applications
- Industrial manufacturers requiring chains that meet NACM2010 for in-house transport systems
Problems It Solves
Problems This Product Removes
- Risk of chain failure during transport due to low-grade or untested materials
- Corrosion and surface degradation in outdoor or wet environments reducing chain life
- Lack of traceability and certification for chains used in regulated transport operations
- Inconsistent strength across chain links due to poor manufacturing processes
- Overhead lifting misuse when chains are not clearly marked as non-lifting
- Need to source chains from multiple suppliers for different sizes and grades
Technical Features
Technical Features
- Welded link construction in Grade 70 alloy steel with quench and temper treatment
- Nominal chain sizes from 1/4 inch to 3/7 inch with corresponding working load limits
- Proof load tested
- Minimum breaking force at 4 times the working load limit as per 4:1 design factor
- Yellow chromated zinc plated finish for corrosion resistance and visual inspection
- Inside length and inside width dimensions specified for fit and clearance checks
- Working load limit and chain size stamped on each link for traceability
Specifications
Grade 70 Transport Chain NACM2010 Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Nominal Chain Size | 1/4 inch to 3/7 inch |
|---|---|
| Material | Alloy steel |
| Grade | Grade 70 |
| Design Factor | 4:1 |
| Surface Finish | Yellow chromated zinc plated |
| Working Load Limit | 3,150 lbs to 24,700 lbs |
| Proof Test Load | 6,300 lbs to 49,400 lbs |
| Minimum Breaking Force | 12,600 lbs to 98,800 lbs |
| Inside Length | 1.24 in to 2.76 in |
| Inside Width | 0.38 in to 0.98 in |
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
- Alloy steel for high tensile strength and fatigue resistance
- Quench and temper heat treatment to achieve Grade 70 hardness and toughness
- Yellow chromated zinc plating to resist corrosion and improve surface durability
- Welded joints with consistent fusion to maintain strength across the chain
Manufacturing Process
How This Product Is Made
1Raw alloy steel material selected and cut to length
2Welded link formation using automated welding equipment
3Quench and temper heat treatment to achieve Grade 70 mechanical properties
4Surface cleaning and preparation for plating
5Yellow chromated zinc plating applied for corrosion resistance
6Proof load testing on production batches
7Stamping of working load limit and chain size on each link
8Inspection for dimensional accuracy and surface defects
9Packing in drums with steel pallets for export
Quality Control
Quality Control On Every Batch
- Proof load test on each production batch at the published multiple of the working load limit
- Dimensional tolerance check against published inside length and width
- Breaking strength validation to confirm the published multiple of the working load limit
- Visual inspection for weld quality, plating uniformity and surface defects
- Material Test Certificate to EN 10204 3.1 supplied with orders
- 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
- Complies with NACM2010 specifications and D.O.T. regulations
Customisation
Customisation Options
- Custom tonnage stamping on chain links
- Private label and OEM marking available
- Custom surface finish including zinc plating, powder coating or electrophoretic black
- Custom packing configurations for drum or pallet load
- Custom sizes and assemblies built to a drawing
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 |
|---|---|
| Grade 43 transport chain | Grade 70 offers higher tensile strength and better fatigue resistance, suitable for heavier loads and repeated use |
| EN 818-2 Grade 80 chain | Grade 70 has lower strength but is more cost-effective for non-overhead applications and meets NACM2010 standards |
| Ratchet strap | Chain provides higher strength and durability under long-term static and dynamic loads, but is heavier and less flexible |
| Wire rope | Chain resists abrasion and crushing better in high-wear environments, but is less flexible and harder to handle |
Use Guide
How To Use And Inspect Grade 70 Transport Chain NACM2010
- Always verify the stamped working load limit matches the calculated load before use
- Inspect the chain for wear, deformation, or broken links before every deployment
- Do not exceed the working load limit under any condition
- Avoid side loading or twisting the chain during tensioning
- Keep the chain clean and dry; reapply protective finish if needed after exposure to salt or chemicals
- Retire the chain if the marking is illegible or if any link shows visible deformation
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Answers
Grade 70 Transport Chain NACM2010 FAQ
Is this chain suitable for overhead lifting?
No. This chain is designed for cargo securement, towing and logging. It is not rated for overhead lifting and should not be used in hoisting applications.
What does Grade 70 mean for this chain?
Grade 70 indicates the chain is made from alloy steel with a minimum tensile strength of 70,000 psi, meeting NACM2010 specifications for transport use.
What is the design factor for this chain?
The design factor is 4:1, meaning the minimum breaking force is four times the stated working load limit.
Are Material Test Certificates available?
Yes. A Material Test Certificate to EN 10204 3.1 is supplied with every order upon request.
Can the chain be custom stamped with our company name?
Yes. Custom tonnage stamping and private label marking are available. We also support OEM branding and custom packing.
How is the chain packed for export?
Standard packing is in drums on steel pallets. Custom configurations for drum count, pallet pattern, or carton packing are available.
What sizes are available?
Available nominal sizes range from 1/4 inch to 3/7 inch. Each size has a corresponding working load limit, inside length, and inside width.
Need A Quote On Grade 70 Transport Chain NACM2010
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.