Steel detachable chain china detachable chain is one of the oldest styles chains that are still in use today. Because the early 1900s metal detachable chains have already been applied in agricultural and industrial applications all over the world. They stemmed from the original cast detachable chain design (patented in 1873) and are manufactured to be light-weight, cost-effective, and durable. USA Roller Chain and Sprockets provides a high-quality line of Steel Detachable Chains (SDC) and steel detachable sprockets. We also have attachments and the easy to use steel detachable chain breaker! Our selection of American standard metal detachable chain is manufactured from a special hot-rolled strip steel that’s heat-treated for increased power and a longer wear life. This kind of chain is made for moderate loads and speeds, it is extremely easy to restoration and install. Something important to note when setting up and using metal detachable chain is definitely that the closed end of the tab should always be towards the sprocket. We stock both painted and non-painted SDC chains so when ordering make sure you specify which series you are looking for.