Metal detachable chain is one of the oldest designs chains that are still in use today. Since the early 1900s metal detachable chains have already been applied in agricultural and industrial applications around the world. They stemmed from the original cast detachable chain design (patented in 1873) and are produced to be light-weight, cost-effective, and durable. United states Roller Chain and Sprockets provides a high-quality line of Metal Detachable Chains (SDC) and steel detachable sprockets. We also have attachments and the easy to use steel detachable chain breaker! Our collection of American standard steel detachable chain is produced from a special hot-rolled strip steel that is heat-treated for increased strength and a longer wear life. This type of chain is designed for moderate loads and speeds, it is extremely easy to restoration and install. Something important to note when installing and using metal detachable chain can be that the closed end of the tab should end up being towards the sprocket. We stock both painted and non-painted SDC chains therefore when ordering please specify which series you are interested in.