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Buy Oil Drilling Rotary Subs
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Description
  • BrandRotary
OCTL Rotary Subs include Straight OD Subs, Reduced Section Subs, Cross Over Subs (Drill Pipe to Drill Collar or Drill Collar to Drill Collar) Bit Subs, and Kelly Saver Subs. The Rotary Subs are available in standard lengths of 36" or 48". Any other length can also be supplied.

OCTL Rotary Subs are made from AISI 4140/ 4145H modified alloy steel, fully heat treated to a Brinell Hardness range of 285 - 341 and have an IZOD impact strength of minimum 40 ft-lbs. The connections are machined and finished according to API 7-1. Thread roots are cold rolled after machining and phosphatized to prevent galling during initial make-up. Rotary Subs are shipped with pressed steel thread protectors installed.
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