Oil Country Tubular Goods

Casing is used to describe Oil Country Tubular Goods (OCTG) or API steel pipe that becomes part of a completed oil and gas well. The term "casing" applies to pipe that is used to line the drilled hole to protect the well from formation fluid flow or collapse. The ability of casing to perform properly depends on the physical integrity of the pipe body and connections (threads).

Casing Information


  • API 5CT:
    H40, J55, N80, L80, L80HC, P110, P110HC, PI80** Indicates Paragon Industries, Inc. Proprietary Grade


  • API 5CT 9th Edition
    Specification for Casing and Tubing


  • Range 1
  • Range 2
  • Range 3
  • Specified Lengths Upon Request

Surface Coatings

  • Black


P = Plain End, S = Short Round Thread, L = Long Round Thread, B = Buttress Thread


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