Steel detachable chain china detachable chain is one of the oldest designs chains that are still in use today. Because the early 1900s metal detachable chains have already been applied in agricultural and industrial applications around the world. They stemmed from the initial cast detachable chain style (patented in 1873) and so are manufactured to be light-weight, economical, and durable. United states Roller Chain and Sprockets provides a high-quality line of Metal Detachable Chains (SDC) and metal detachable sprockets. We also have attachments and the simple to use metal detachable chain breaker! Our selection of American standard steel detachable chain is manufactured from a particular hot-rolled strip steel that is heat-treated for increased strength and a longer wear life. This kind of chain is created for moderate loads and speeds, it is extremely easy to repair and install. Something important to note when setting up and using steel detachable chain is certainly that the closed end of the tab should become towards the sprocket. We share both painted and non-painted SDC chains so when ordering make sure you specify which series you are interested in.