Metal detachable chain china detachable chain is one of the oldest designs chains that are still in use today. Since the early 1900s steel detachable chains have been implemented in agricultural and commercial 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. USA Roller Chain and Sprockets provides a high-quality type of Metal Detachable Chains (SDC) and steel detachable sprockets. We also have attachments and the simple to use metal detachable chain breaker! Our selection of American standard metal detachable chain is manufactured from a particular hot-rolled strip steel that’s heat-treated for increased strength and an extended wear life. This kind of chain is created for moderate loads and speeds, it is very easy to repair and install. Something important to note when installing and using metal detachable chain is that the closed end of the tab should always become towards the sprocket. We share both painted and non-painted SDC chains so when ordering make sure you specify which series you are looking for.