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Our ASTM 80 G43 chain is a premium high-tensile link chain manufactured to strict U.S. ASTM 80 standards, engineered for heavy-duty lifting, load securement, and material handling applications. As part of our full ASTM 80 chain range, which includes Proof Coil Chain (G30), High Test Chain (G43), and Transport Chain (G70), our G43 heavy lifting chain delivers unmatched strength, durability, and compliance for industrial and commercial projects. Available in a wide range of material diameters from 4mm to 26.5mm, with customizable surface treatments, this chain is the preferred choice for construction contractors, logistics operators, marine equipment suppliers, and industrial lifting service providers.
Every batch of our ASTM 80 G43 chain is manufactured and tested to meet or exceed U.S. ASTM 80 specifications, with verified working load limits (WLL) and minimum breaking force ratings. This full compliance ensures your projects meet local and international safety regulations, eliminating compliance risks and liability for industrial operators and contractors.
We offer a full range of surface treatment options for our high tensile lifting chain, including hot dip galvanized, electric galvanized, self-color, polishing, blackened, painted, and plastic coating. These treatments deliver superior corrosion, abrasion, and weather resistance, making the chain suitable for outdoor, marine, mining, and harsh industrial environments, extending service life and reducing replacement costs.
Our ASTM 80 chain range covers nominal sizes from 1/8 inch (4mm) to 1 inch (26.5mm), with working load limits up to 8,400kg, to match every heavy lifting and load securement need. This versatility allows you to source the exact chain specification for your project, whether it’s light-duty load securement or heavy construction lifting, eliminating over-engineering and unnecessary costs.
Engineered with high-grade carbon steel, our G43 high test chain delivers exceptional impact resistance and wear performance in high-cycle lifting and towing operations. The precision-welded link design ensures uniform load distribution across every link, reducing stress concentrations and preventing link failure, even under dynamic loading conditions.
1.Proof Coil Chain Astm80(G30) | |||||||||||||
NORMINAL | WORKING | PROOF TEST | BREAKING | WEIGHT PER | INSIDE | INSIDE | |||||||
inches | mm | kg | Ib | kn | Ib | kn | Ib | kg | Ib | mm | inches | mm | inches |
1/8 | 4.0 | 190 | 420 | 3.78 | 850 | 7.56 | 1,700 | 8.8 | 19 | 22.6 | 0.89 | 7.4 | 0.29 |
3/16 | 5.5 | 360 | 800 | 7.11 | 1,600 | 14.2 | 3,200 | 18.3 | 40 | 24.1 | 0.95 | 10.2 | 0.40 |
1/4 | 7.1 | 600 | 1,330 | 11.8 | 2,650 | 23.6 | 5,300 | 32.7 | 72 | 25.4 | 1.00 | 12.7 | 0.50 |
5/16 | 8.7 | 910 | 2,000 | 17.8 | 4,000 | 35.6 | 8,000 | 48.0 | 106 | 27.9 | 1.10 | 12.7 | 0.50 |
3/8 | 10.3 | 1,270 | 2,800 | 24.9 | 5,600 | 49.8 | 11,200 | 70.3 | 155 | 31.2 | 1.23 | 15.7 | 0.62 |
1/2 | 13.5 | 2,190 | 4,800 | 42.9 | 9,650 | 85.8 | 19,300 | 123 | 271 | 38.9 | 1.53 | 20.3 | 0.80 |
5/8 | 16.7 | 3,350 | 7,400 | 65.8 | 14,800 | 131.6 | 29,600 | 184 | 405 | 48.3 | 1.90 | 25.4 | 1.00 |
3/4 | 19.8 | 4,700 | 10,400 | 92.5 | 20,800 | 185.0 | 41,600 | 264 | 582 | 54.6 | 2.15 | 28.4 | 1.12 |
7/8 | 23.0 | 6,350 | 14,000 | 124.5 | 28,000 | 249.0 | 56,000 | 368 | 811 | 63.5 | 2.50 | 34.8 | 1.37 |
1 | 26.5 | 8,400 | 18,600 | 165.4 | 37,200 | 330.8 | 74,400 | 474 | 1045 | 69.9 | 2.75 | 38.1 | 1.50 |
2.High Test Chain Astm80(G43) | |||||||||||||
NORMINAL | WORKING | PROOF TEST |
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| INSIDE | INSIDE | |||||||
inches | mm | kg | Ib | kn | Ib | kn | Ib | kg | Ib | mm | inches | mm | inches |
1/4 | 7.1 | 1,180 | 2,600 | 19.1 | 4,300 | 34.5 | 7,750 | 36.3 | 80 | 21.8 | 0.86 | 10.2 | 0.40 |
5/16 | 8.7 | 1,770 | 3,900 | 28.4 | 6,400 | 51.6 | 11,600 | 50.4 | 111 | 26.7 | 1.05 | 12.2 | 0.48 |
3/8 | 10.3 | 2,450 | 5,400 | 39.6 | 8,900 | 72.0 | 16,200 | 72.6 | 160 | 30.3 | 1.19 | 14.7 | 0.58 |
1/2 | 13.5 | 4,170 | 9,200 | 68.0 | 15,300 | 122.7 | 27,600 | 128.6 | 284 | 36.0 | 1.43 | 19.1 | 0.75 |
3.Transport Chain Astm80(G70) | |||||||||||||
| WORKING |
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| INSIDE | INSIDE | |||||||
inches | mm | kg | Ib | kn | Ib | kn | Ib | kg | Ib | mm | inches | mm | inches |
1/4 | 7.1 | 1,430 | 3,150 | 27.8 | 6,300 | 56.0 | 12,600 | 34.0 | 75 | 21.8 | 0.86 | 11.4 | 0.45 |
5/16 | 8.7 | 2,130 | 4,700 | 41.8 | 9,400 | 83.6 | 18,800 | 50.4 | 111 | 25.6 | 1.01 | 11.7 | 0.46 |
3/8 | 10.3 | 2,990 | 6,600 | 58.7 | 13,200 | 117.4 | 26,400 | 71.0 | 156 | 30.2 | 1.19 | 14.0 | 0.55 |
Our ASTM 80 G43 chain is ideal for a wide range of industrial and commercial projects, including heavy construction lifting operations, cargo transport and tie-down, marine mooring and towing, mining material handling, industrial overhead crane systems, trailer towing safety chains, outdoor playground and swing equipment, and utility infrastructure maintenance projects. It is tailored to meet the needs of construction contractors, logistics and transport operators, marine supply companies, mining enterprises, and industrial equipment manufacturers.
Our ASTM 80 chain portfolio includes three core grades: Proof Coil Chain (G30) for general-purpose applications, High Test Chain (G43) for heavy lifting, and Transport Chain (G70) for cargo securement and transport.
We offer hot dip galvanized, electric galvanized, self-color, polishing, blackened, painted, and plastic coating options, to match your project’s environmental and corrosion resistance requirements.
Our G43 chain offers a maximum working load limit of 4,170kg for the 1/2 inch (13.5mm) size, with higher load capacities available in our G70 transport chain range.
Yes, we offer fully custom chain lengths, link dimensions, and end fittings to meet the unique requirements of your lifting or transport project.
Whether you are a construction contractor sourcing lifting chains for a commercial build, a logistics operator needing bulk transport chain, or a marine supplier requiring corrosion-resistant mooring chain, we have the solution for you. Contact us today to receive your free custom quote, complimentary technical specification review, and sample testing for our premium ASTM 80 G43 chain. Our team will work with you to deliver a tailored, compliant solution that meets your project’s performance and budget needs.
