1018   cold rolled steel coil is made of a general-purpose, low-carbon steel with   good case hardening qualities. It is especially suited to cold   forming and bending operations. 1018 steel is suitable for parts   that require cold forming such as crimping, swaging, or bending. 1018 steel is mild steel with   medium-low carbon content. AISI 1018 carbon steel is a free machining grade   that is the most commonly available grade around the world. Although its   mechanical properties are not very unique, it still can be easily formed, machined,   welded and fabricated.