1018 - Flat Bar Cold Finish

1018 - Flat Bar Cold Finish

1018 is among the most commonly available grades in the world:in cold finished rounds, squares, flat bar and hexagons.
Despite its unimpressive mechanical properties, the alloy is easily formed, machined, welded and fabricated. Due to its higher manganese (Mn) content, it can, in thin sections, be hardened to Rc 42.

Applications The alloy is a free machining grade that is often employed in high volume screw machine parts applications. It is commonly employed in shafts, spindles, pins, rods, sprocket assemblies and an incredibly wide variety of component parts.

  • Machinability: 1018 is rated at 62% of 1112 carbon steel. The alloy can be easily brought to a fine finish, its chips are continuous and hard and it can be machined in all conditions.
  • Forming: 1018 can be easily formed in the annealed condition.
  • Welding: 1018 has been successfully welded using most all the common practices including gas, resistance, oxyacetylene, and submerged melt welding.
  • Heat Treatment: 1018 can, in thin sections, be case hardened to Rc 42. In thicker sections, over 4", Rc 28-30 can be obtained.

Refer to our "Guide to Carbon" for grades, shapes and various properties.