Grade 120 Chain and Components at US Cargo Control

We’ve added a wide selection of the strongest and toughest chain grade components to our inventory.

A full line of Grade 120 chain and chain sling components are now available through US Cargo Control.

Grade 120 is a high-strength, ultra-premium quality alloy steel with the highest working load limits in the industry. Now it’s easier than ever to get the G120 products you need to tackle the toughest overhead lifting and transportation jobs.

We’ve added a wide selection of the strongest and toughest chain grade components to our stock. And with a large inventory of bulk g120 chain, fittings, chain and binder kits, and more, you can count on US Cargo Control for all of your Grade 120 transport and rigging and lifting needs!

4 Benefits of Grade 120 Components

Length of blue grade 120 chain showcasing the square-link design.

1. It’s the Strongest Chain in the Industry

Grade 120 chain and components are 50% stronger than Grade 80 and 20% stronger than Grade 100 products. That added strength means you can select a smaller chain size for the job that’s lighter in weight and easier to handle – all without sacrificing working load limits.

2. It’s Extremely Durable

G120 chain features a revolutionary square link design that offers superior fatigue and bending resistance, making it an excellent choice for a wide variety of lifting applications. The patented square profile also offers increased contact between the surfaces on the links, resulting in a better grip than a traditional round link-style chain. A blue powder-coated finish adds corrosion protection.

3. It’s Easy to Identify

All Grade 120 Chain and Components feature a light-blue powder coating for quick and easy identification. You will also find either “120” or “12” markings on the chain and components as additional identification as Grade 120 alloy.

4. It’s Made by Pewag

Our Grade 120 chain and components are made by Pewag, an industry leader in quality chain products. With a history dating back over 500 years, Pewag is an established and trusted manufacturer in the transportation and lifting industries.

Grade 120 Chain Slings

Chain slings manufactured with grade 120 chains offer the highest strength available on the market. They are excellent for heavy-duty lifting applications.

There are two main types of lifting slings: standard and adjustable. Both options allow the user to customize the sling to suit their specific lifting application. Choose from several options including the number of legs, length of the chain, and type of end fitting.

Blue Grade 120 standard chain sling with a sling hook and oblong link at opposing ends of the length of chain.

Standard Chain Sling

Features a fixed-length of Grade 120 Chain and available in a variety of length and end fitting combinations

Blue adjustable single-leg chain sling with a sling hook and oblong link at opposing ends of the length of chain.

Adjustable Chain Sling

Can be designed with the same leg configurations as standard slings, but an additional fitting allows the user to adjust the length of the chain.

Grade 120 Fittings

We stock a wide selection of G120 end fittings. Like all Grade 120 components, end-fittings all feature the distinctive blue powder-coat finish for superior corrosion protection and easy identification. Some of the most common options include:

Blue Grade 120 oblong master link ring.

Oblong Master Links are used at the top of chain slings.

Blue Grade 120 grab hook.

Eye Grab Hooks are designed for optimal interaction between chain and hook, making them excellent for a variety of lifting applications.

Blue Grade 120 self-locking hook.

Self-Locking Hooks feature a larger opening than typical eye sling hooks and automatically close and lock under load.

Blue Grade 120 sling hook with silver galvanized safety latch.

A Sling Hook has a forged and galvanized safety latch for a secure connection in a variety of lifting applications.

Tackle The Toughest Lifting Jobs With Grade 120

We recommend heavy-duty Grade 120 Chain for the toughest jobs. Whether you are in the trucking and transportation or lifting and rigging industries, the high-strength and superior quality of G120 alloy steel can stand up to even the most demanding applications.

If you’re looking for more information on chain slings, check out our main chain slings page on our website or our lifting slings category on our blog.


Are you ready to get your hands on some Grade 120 products? Contact our sales team today at 800-404-7068. Our team of product experts is here to answer any questions about rigging chain, lifting slings, and more.


We also do custom orders! Need a custom lifting sling? We can do that! Because we assemble all of our Grade 120 chain slings in-house, we can customize a lifting sling to meet your specific needs.

Chain Grades: Comparing Grade 30, Grade 43, Grade 70, Grade 80, Grade 100, and Grade 120 Chain

We turned one our most popular posts, “What are the Differences Between Grade 70 Chain, Grade 80 Chain, Grade 100 Chain, and Grade 120 Chain?”, into a simple chart for quick and easy chain grade comparison.

We also added information on the Grade 30 chain and Grade 43 chain. While we don’t sell these chain grades on our website, you can always call in to order them.

chain grade information

Typical Chain Uses

Grade 30

General purpose economical chain. Used in a variety of industries and jobs including light construction, agricultural applications, and the marine industry.

Grade 43

Typically used for container securement, logging, farming, towing, marine applications, and as general purpose utility chain.

Grade 70

Made from a higher strength, heat-treated carbon steel that has a load rating approximately 20 percent higher than Grade 43. The gold chromate finish makes it easy for DOT officials to recognize. Typically used by truckers, loggers, and highway crews for load securement and towing.

Grade 80

A high strength, heat treated alloy chain that can be used as a sling component for overhead lifting as well as heavy duty tow chain. The most economical choice that is suitable for overhead lifting.

Grade 100

A high strength, heat treated alloy chain. Primarily used as a sling component for overhead lifting.  Has approximately 25 percent higher strength than Grade 80. Popular in construction, manufacturing, and rigging applications.

Grade 120

An ultra-premium high strength chain designed specifically for the rigorous requirements of overhead lifting applications. The links have a unique square shape and it has approximately 50 percent higher strength compared to Grade 80. There are currently no official standards for Grade 120 chain in the U.S. or Europe, however, it does meet or exceed the standards of Grade 100 chain.

chain working load limits

Safety Standards for Chain

Organizations like ASTM (American Society of Testing & Materials), ASME (American Society of Mechanical Engineers), and OSHA (Occupational Safety & Health Administration) have released safety standards and regulations for various materials and grades of a chain.  

Essentially, it’s a formal way of recognizing and documenting that not all chain is created equally and therefore, it should not all be used for the same applications. 

ASTM Chain Specification 

What does A413, A391, and A973 all mean? Those are simply how the ASTM categorizes and references their specification standards. Each specification outlines the different manufacturing and testing requirements as well as the appropriate performance standards, grades, and applications.  

Determining Chain Grades

Chain grades are a standard method for showing the ultimate breaking strength (tensile strength) of a chain. Grades help determine what sort of applications are appropriate for a given chain. 

Chain grades are determined by calculating newtons per square millimeter, using the formula “N/mm2”.

Where “mm” is the area of the two cross-sections of a single chain link, and “N” is newtons. A newton is approximately 0.224805 lbs. 

So, to determine a chain grade, manufacturers must find the ultimate breaking strength. Then, divide that number by .224805 to determine ultimate breaking strength in newtons. Next, take that number and divide by the total area of two cross-sections of a single link. That number is the chain grade. 

You could reverse this formula to determine ultimate breaking strength if all you know if the chain grade.  

Note: chain grades advertised by manufacturers are one-tenth of the actual mathematical grades. So grade 80 is really 800, and grade 120 is 1,200. 

Determining Chain Working Load Limits

Working load limit (WLL) of a chain is another designated safety measure. WLL is a weight significantly less than the weight that would cause a chain to fail (tensile strength).

WLL = MBL / SF. Where MBL is minimum breaking load and SF is the safety factor.  

A safety factor is the ratio between allowable stress and actual stress. In other words, it’s the ratio between the chain strength and the expected maximum stress.

In lifting and rigging applications, factors such as gravity and the additional force caused by angles must be considered.  

Always adhere to the WLL to ensure a chain does not break or wear quicker than it should.  

New Products: Grade 120 Chain

PewagChain-by-the-foot_1
Grade 120 chain by the foot

If you’re looking for the best lifting chains and bulk chain in the industry, look no further than grade 120 chain.

120 grade chain is a new generation of high performance chain. With working load limits 50% higher than traditional grade 80 chain, and 20% stronger than grade 100 chain, it’s ideal for any application requiring superior strength.

The higher levels of strength also allows for significant reduction in overall chain weight, an excellent benefit for lifting applications.

The added strength comes from the chain’s square link design, which provides higher wear resistance. Because there’s increased contact between the links’ bearing surfaces, pressure is reduced on the chain, which reduces overall wear and encourages a longer working life.

Grade 120 connecting link
Grade 120 connecting link

This square profile also offers up to 38% higher moment of resistance in comparison to traditional round links in the same diameter. This translates into the chain being able to withstand bending forces- making it the superior chain for heavy duty jobs.

In comparing chain with the same dimension and workload, grade 120 alloy offers a design factor of 6:1 compared to G80 with 4:1.

120 grade chain is manufactured with a powder coat finish for corrosion protection. The bright blue color also makes it easily identifiable.

Grade 120 Eye Self Locking Hooks
Grade 120 Eye Self Locking Hooks

Our grade 120 chain comes from the experts at pewag, the leaders in chain technology and manufacturing since its first documented forging plan in Austria in 1479. pewag’s North American distribution company and service center was founded in 1975.

We’re pleased to carry grade 120 chain in four sizes: 9/32″, 5/16″, 3/8″, and 1/2″, all in full drum sizes of cut lengths by the foot. Grade 120 fittings are also available. Shop the full selection here: Grade 120 chain.

Working Load Limits of Chain

Grade 70 transport chain from US Cargo ControlWhether you transport machinery, use tow chains, or are in the logging industry, it’s important to know the working load limits of chain you are using. Chains have a working load limit- or WLL- of approximately one third of their break strengths (the amount of force the chains can withstand before they break).

How to determine a chain’s working load limit

The WLL of a chain is determined by both the grade and the diameter. Chain is embossed with both the grade and size so you can determine its WLL using this chart.

new chart

 

Types of chain

Grade 30 Chain

Grade 30 is a multipurpose, economical chain. Also known as Grade 30 Proof Coil Chain, it’s used in a variety of industries and jobs, including light construction, barrier chains, and in the marine industry. It is not safe for overhead lifting. Grade 30 chain is embossed using a 3, 30, or 300.

Grade 43 Chain

Also called Grade 43 High Test Chain  or Grade 43 Tow Chain, this is common in the towing and logging industries. It is not rated safe for overhead lifting. Grade 43 chain is embossed using a 43 or a G4.shutterstock_2337463

Grade 70 Chain

Grade 70 Transport Chain is also called Grade 70 Truckers Chain as it’s common in securing loads for over-the-road hauling. It is not rated safe for overhead lifting. Grade 70 chain is embossed using a 7, 70, or 700.

Grade 80 Chain

Grade 80 Alloy Chain is heat-treated making it safe and rated for overhead lifting. It’s also commonly used as a heavy duty tow chain. Grade 80 chain is embossed using an 8, 80, or 800.

Grade 100 Chain

Considered premium quality chain, it offers about a 25% higher work load limit over Grade 80 chain. It is safe for overhead lifting. Grade 100 chains are embossed with a 10 or 100.

Grade 120 Chain

A newer product in the market, Grade 120 chain is up to 50% stronger than Grade 80 chain and 20% stronger than Grade 100 chain. It’s also more resistant to abrasion than both Grade 80 and Grade 100 chains. It’s safe  for overhead lifts.

LEARN MORE: 

Learn more about the differences between grades 70, 80 and 100 here: What are the Differences Between Grade 70 Chain, Grade 80 Chain, and Grade 100 Chain?

SHOP NOW: 

What are the Differences Between Grade 70 Chain, Grade 80 Chain, Grade 100 Chain, and Grade 120 Chain?

A common question our sales team hears from customers is “What are the differences between grade 70 chain, grade 80 chain, grade 100 chain, and grade 120 chain?”

Note: to view a complete chain grade comparison chart and WLL chart, see our recent chain grade overview post.

Grade 70 chain

image of grade 70 transport chain / truckers chain from US Cargo Control

Grade 70 chain is transport chain manufactured in heat-treated carbon steel. As the name suggests, it’s used as tie downs on over-the-road trailers so it’s also known as truckers chain. It’s never to be used for overhead lifting. Grade 70 chain generally features a gold chromate finish so it’s easy to recognize and to meet California Highway Patrol and DOT requirements. In addition to transport uses, it’s also commonly used in towing, logging, oil rigs, and safety chain applications.

Grade 70 chain is embossed with 7, 70, or 700.

 

Grade 80 chain

Grade 80 chain is a heat-treated steel chain with a high strength to weight ratio. Its strength makes it safe for overhead lifting and lifting slings. It’s also excellent for uses such as recovery, safety, and towing chains. Grade 80 chain is also becoming more common in the flatbed trucking industry to secure heavy duty industrial loads. Because these types of chains are generally equipped with a specific type of clevis grab hook, Grade 80 tie down chain assemblies are not approved for overhead lifting.

Grade 80 alloy chain is embossed with 8, 80, or 800.

 

Grade 100 chain

Grade 100 chain is a newer product and is becoming increasingly popular as a replacement for grade 80 chain. Considered premium quality by chain manufacturers, it provides about 25% higher work load limits than grade 80 chain and is approved for overhead lifting applications. Due to the added strength of grade 100 chain over grade 80 chain, it’s becoming more widely used to secure flatbed loads since a smaller-sized chain can be used without sacrificing working load limit capacities. However, because these chains are generally equipped with a specific type of clevis grab hook, Grade 100 tie down chain assemblies are not approved for overhead lifting.

Grade 100 alloy chain is embossed with 10, 100, or 1000.

 

Grade 120 chain

Grade 120 chainimage of grade 120 chain from US Cargo Control is also a newer category of high performance chain, offering the highest strength in the industry. The square link style creates increased contact between the bearing surfaces on the links, which reduces pressure on the chain. This translates to work load limits that are 50% higher than grade 80 chain, and 20% higher than grade 100 chain. Chain grade 120 is approved for overhead lifting. It’s important to note that as with Grade 80 tie down chain assemblies and Grade 100 tie down chain assemblies, Grade 120 tie down chain assemblies are also not safe for overhead lifting due to the type of hooks used.

Grade 120 chains have a bright blue finish to make them easily recognizable.

 

 

 

Regardless of the type of chain, all must adhere to standards set by the National Association of Chain Manufacturers (NACM), which include:

• Chain lifted loads should never to be transported or suspended over people.

• All chains should be periodically inspected for cracks, gouges, wear, elongation, nicks, and suitability.

• Excessive temperatures or exposure to chemically active environments such as acids or corrosive liquids or fumes can reduce a chain’s performance.

• If chains are to be used outside the recommended temperature range ( -40 °F to 400 °F), the user should first consult the chain’s manufacturer.

• If the thickness at any location on the link is less than the listed minimum value, all chain should be removed from service.

• When mixing chain or component types, all should be rated at the working load limit of the lowest rated component or chain.

US Cargo Control offers a full line of grade 70 transport chain, grade 80 chain, grade 100 chain, grade 120 chain, as well as chain slings.

 

Questions? Give our sales team a call at  866-444-9990. They will be happy to help or place an order for you.