Iron Wire / Black Iron Wire

High Carbon Spring Tempering Steel Wire

High carbon steel is used to make spring tempered carbon steel wire. Commonly used grades of spring steel wire do not have a specific chemical name. They are instead specified and manufactured according to performance criteria specific to their primary end use, which is the manufacture of coil springs. These performance standards allow a range of carbon content, but there are other factors, such as tensile strength and bending/winding tests must be met within the specified range.