Carbon Steel / 1018 STEEL

1018 Cold Finished Carbon Steel is a mild / low-carbon steel providing good case hardening qualities, weldability and machinability. Welding 1018 steel can be done with any standard method, without pre-heating or post-heating. It is especially suited to cold forming and bending operations. 1018 is suitable for parts that require cold forming (such as crimping, swaging, or bending). For severe bends stress relieving may be necessary to prevent cracking. Our 1018 carbon steel is purchased to meet chemistry requirements rather than physical requirements. For that reason, physical properties are generally not provided unless requested prior to production. The material can be sent to a third party by the purchaser after production to be tested for physical properties, but the material is not rejectable upon these test results. Cold finished steel bars tend to have higher tensile and yield strength, tighter size tolerances and improved smoothness when compared to hot-finished steel. Due to 1018s workability and machinability qualities the material is ideal for creating a number of high volume machine parts that include fasteners, anchor bolts, gears, pins, rods and structural parts. (UNS G10180)

Chemical Makeup

Element Min Max
Manganese, Mn 0.6 0.9
Carbon, C 0.15 0.2
Sulfur, S - 0.05
Phosphorous, P - 0.04

Common Applications

  • Industrial Industrial
  • Defense Defense
  • Aerospace Aerospace


  • Good Formability
  • Good Weldability
  • Good Case Hardening

We stock 1018 STEEL to the following specifications:


Click on a cross-section to see the sizes we stock:

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