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What is Turned & Polished Steel Bar?

Hot rolled steel bar is fed through a turning head that removes material with tooling much like a traditional lathe. The difference from traditional lathe turning is that the bars are continuously produced as the turning head rotates around the bar. Bars are then straightened while also applying a polish. This results in a smooth, turned, surface finish. This process also is considered the way to produce a “defect-free” or “decarb-free” condition, since there is material removal at the surface. This does not result in an increase in mechanical properties like cold drawing.

Turned and polished, turned and rough turned bars are produced from hot rolled bars via a “turning” or machining process. The turning removes the surface of the hot rolled bars, improving their dimensional tolerances while removing superficial features of the hot rolled bars which may be detrimental to the surface of the parts produced.  View our inventory for our 1018, 1045, 1215/1215G2, 12L14, 1117, 1141, 1144, 8620 and 4140 LPA size and grade combinations.

***Minimum Total Quantity Per Order is 10,000 lbs.***

Turned & Polished Bar Size Range

Benefits of Turned & Polished Steel Bar

  • Improved dimensional tolerances
  • turned and polished steel barImproved straightness capability
  • Decarb free surface
  • Elimination of superficial imperfections introduced during the hot rolling process


  • Warm and cold forgings for near net shape forged parts
  • Shafting with critical dimensional and straightness requirements.

Typical Applications

  • Plated shafts for hydraulic cylinders
  • Water and oil pump shafts  
  • Motor shafts
  • Camshafts, industrial, shafts and spindles
  • Machined components with critical surface requirements in which the surface is not removed during the machining process. 

turned and polished steel bar process