Few things are more important in rigging than chains. From anchoring to hoisting and supporting, chains are relied upon constantly to get the job done. However, like with everything else on the jobsite, it is important to use the right tool for the job. In this instance, we must use the correct chain in the correct circumstance in order to ensure that the load is secure and the chain’s working load is up to the task. This means not only using the correct chain grade but also the proper chain hardware to secure it.
Using the right chain is not only a matter of getting the job done effectively but also safely. Using chains improperly can cause dangerous situations on the jobsite. Here is a handy, go-to guide for chains and chain hardware to help avoid accidents and keep your site working smoothly.
Anchor Chain
Anchor chain can be used in many different capacities depending on its grade. Some make for excellent load binding and towing chain while others are better suited for overhead hoisting. Here is a quick overview of long link galvanized anchor chain:
- Grade 43 Chain – With a high weight to strength ratio, this carbon steel chain is used for load binding, towing and other instances requiring strength. This is a lighter weight chain but can still be used in some instances as a safety chain.
- Grade 70 Chain – Another chain with a high weight to strength ratio, grade 70 anchor chains are made from heat-treated carbon steel and are used primarily for towing (grade 70 is often referred to as transport or trucker’s chain). It should not, however, be used in any sort of overhead capacity.
- Grade 80 Chain – Grade 80 chain is made from heat treated carbon steel and is excellent for overhead lifting. It can also be used as a safety or recovery chain but its main purpose is for overhead work.
Stud Link Chain
This chain is the preferred anchor chain on ships due to the crossbar or ‘stud’ across the middle of each link. This not only makes the chain heavier also prevents the chain from kinking or fouling when outstretched.
Marine Chain
Marine chain or lashing chain is used to secure heavy loads to the deck and are available in 6 or 8 link configurations. This chain can have lashing hooks attached to either end to aid in securing the load.
Chain Hardware
With chains being a central component to so many different types of tasks, it would only stand to reason that there is an array of hardware out there. Make sure you are using the right hardware for the job.
Hooks
There are many different types of hooks for different types of tasks. For overhead securement there are chain, sling and eye hooks. Chain and sling hooks are used for securing loads whereas eye hooks are used to link back to the chain. Beyond that, there are bale hooks, C-hooks, drum hooks and many more to handle specific tasks depending on the specific needs of the task and the materials at play.
Connecting Links
Connecting links are critical in overhead securement and are used to form multi-leg slings. Made from an alloy steel, they have a large length and width to allow for hooks and slings.
Couplers
Couplers are used to attach hooks, slings and the like to a chain. These steel alloy pieces can also be used to connect a master link to slings, hooks etc
Source from the Best
There you have it, a simple guide for chains and chain hardware. If you are in need of chains, hardware or have questions about the right approach to a task on your jobsite reach out to Paducah today! We have decades of experience in rigging and can offer solutions based on the countless hours we have spent in the field.