Towing and lifting hefty goods requires more than simply an ordinary chain. Rather, you’ll need to select a heavy-duty chain that can support the weight of the load. G70 transport chains are one of the most often used chains for towing and lifting. It’s also known as a G70 chain, which is an extremely strong industrial chain.
Transport chains and load binders are essential for tying down large equipment and goods. They have the strength to firmly keep your load in place and safely convey it from point A to point B. This makes them a must-have for many in the transportation sector.
Which Chain Grades Are Used for Tie Downs?
Industrial chains are offered in several grades. There are several types of chains, including G30, G43, G70, and G80. They are all made of metal links, although some are more durable than others. G70 transport chains are at the top of the strength scale, offering a G70 strength rating.
Tie-down chains are typically made of grade 70 chains. Other chain classes, such as 80, 100, and 120, can be utilized but are less popular. Several factors influence the chain grade and size you require, but the working load limit is the most important: the aggregate WLL of the chains you employ must be greater than 50% of the entire weight of your cargo.
What is the Grade 70 Transportation Chain?
A G70 transport chain is an industrial chain that has a strength grade of Grade 70.
Grade 70 chain is made of carbon steel and heat-treated for additional strength. This makes it perfect for freight transport. This chain is usually offered in lengths ranging from 16 to 25 feet, and it includes end hardware such as clevis grab hooks, clevis slip hooks, or clevis slip hooks with a lock.
To aid identification, the G70 transport chain is stamped with a 7, 70, or 700 and finished in yellow chromate.
What is the Grade 70 Transport Chain Used For?
Along with cargo security, the grade 70 transport chain is widely utilized in sectors such as forestry and towing. It is unsuitable for overhead lifting. Each chain’s break strength and working load limit vary according to its size and grade.
Grade 70 chain has a load rating that is around 20% greater than grade 43 chain, whereas grades 100 and 120 have 25 and 50% more strength than grade 80, respectively. Higher chain grades are highly resistant to fatigue and abrasion.
Transport Chains versus Other Tie Downs
There are various alternative options for tying down freight, such as ratchet straps, winch straps, and rope, so why choose a transport chain?
The transport chain is far more robust than polyester webbing or rope used for other tie-downs. Sharp edges that may cause a winch strap to tear and snap are unlikely to affect chains.
Also, the increased working load limitations for the chain lower the number of tie-downs required to secure equipment and other large loads.
Difference Between Transport Chain and Lifting Chain
There are several critical aspects to consider while employing a chain to raise an obstacle. The shiny, gold Grade 70 Transport chain is solely meant for load binding. This chain is used to secure big things to a flatbed truck, and its gold-chromate coating and carbon-steel structure make it easier to identify and break.
Having stated that this chain should not be used for lifting unless it has been created by a sling maker, who must follow fabrication criteria. ASME and/or ASTM requirements must be observed, and grade 80 or 100 chain must be used in sling manufacture due to its alloy steel architecture and capacity to stretch when overloaded rather than snapping abruptly.
The manufacturer will also have to include a tag on the chain sling indicating the maximum load or Working Load Limit that may be safely applied to the sling, making it easier for end users to understand the constraints.
Benefits of G70 Transportation Chains
G70 transport chains have a strength rating of Grade 70. The number in a chain’s strength rating is an indicator of its strength. In other words, the higher the strength rating, the more durable the chain.
G70 transport chains are stronger than G30 and G43 chains and can lift more weight. This makes G70 transport chains a good option for towing and lifting applications.
How much weight can a G70 transport chain support exactly? Some have a working load limit of 2,600 pounds, while others have a working load limit of 3,900 to 5,400 pounds.
G70 transport chains are simple to use. They have regular link size, smooth surfaces, and a constant strength across the chain. You may also see marks on them. These indicators allow you to readily recognize and distinguish them from other chains.
Another advantage of G70 transportation chains is testing. They have been tested and graded to verify their effectiveness. Other chains may or may not have undergone testing. You may have peace of mind knowing that G70 transport chains were built to meet severe testing criteria.
G70 transport chains are corrosion-resistant. They are normally constructed of heat-treated steel with a protective coating. A protective finish, such as a galvanized finish, shields the underlying steel from oxidation, which would otherwise cause corrosion.