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Recent content by jgbf

  1. jgbf

    Welding A335-P91 Pipe, A182-F91 Forgings

    Thanks. I will try that and post the results.
  2. jgbf

    Welding A335-P91 Pipe, A182-F91 Forgings

    The API requirment brings the MAX hardness to 238HB. Could my difficulty be that I am trying to use A335 Grade P91 pipe? Do you think that I should get some A182 F91 bar and machine a coupon from that for qulaification? The testing lab is using a Vicker's hardness test, test method ASTM E92...
  3. jgbf

    Welding A335-P91 Pipe, A182-F91 Forgings

    I am working on a ASME Section IX procedure qualification using A335 Grade P91 pipe. I am planning to use this Procedure Qualification (PQR) as the basis for a Welding Procedure Specification (WPS) for a seal welding A182 Grade F91 valve body forging to valve bonnet forging. However, I am...
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