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  1. VenkatRajendran

    Drill Connections

    I think below thread link would give you some idea. http://www.eng-tips.com/viewthread.cfm?qid=116378 Regards, Venkat
  2. VenkatRajendran

    API NC50 Thread_ Connection performace

    Hello, I have a question regarding the connection performance of the 4-1/2 IF (NC50) thread. We are designing a Test Mandrel with the 4-1/2 IF thread connection. The purpose of this mandrel is to test the BOP stack. Tool Joint OD = 7.5 in ID = 3.5 in Material Yield = 75 Ksi Working...

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