Spring steel refers to a group of medium-to-high carbon, low alloy steel products which exhibit excellent yield strength. The term yield strength refers to a material's ability to endure significant bending or twisting and return to its original shape without deforming. Products made from this type of steel are generally either cold drawn as wire or punched from flat stock. Typical uses include saw blades, tape measures, helical springs, and vehicle suspension elements.Spring steels can be used to produce a wide variety of products that supply energy or absorb various forces. These product types include a huge variety of helical spring, coil spring, and flat springs, vehicle suspension members, and toy mechanisms. Items such as tape measures and steel rulers are also made from various grades of spring steel.