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  1. BurningFuel

    6% brown weldments in CA6NM

    We just pulled a small ca6nm case and there are some small weld repair areas in the volute discolored, Any way chrome content is 6% in those spots. We are told repairs were completed with 410nimo and that their engineer believes chrome content can weaken in slurry conditions. I have never heard...
  2. BurningFuel

    CA6NM Pump Case Weld Repair

    The Case is now back in service, We thank you guys very much! We cut all reg. fits .200" deeper to insure good case material welded with smaw 410 nimo few hundred pounds worth! And it survived boron coating! Now we have another question, In our attempt to save man hours in the future we bought...
  3. BurningFuel

    CA6NM Case Repair

    I have a issue with a CA6NM slurry case, With a complete pmi the results show 300 s.s., Inco 82 and other unknown materials in the wetted areas, The case has boron coating, Wet mag shows well the major cracks are visible but there are small spider web cracks and with grinding go over 1/2" deep...
  4. BurningFuel

    CA6NM Pump Case Weld Repair

    I have a issue with a CA6NM slurry case, With a complete pmi the results show 300 s.s., Inco 82 and other unknown materials in the wetted areas, The case has boron coating, Wet mag shows well the major cracks are visible but there are small spider web cracks and with grinding go over 1/2" deep...
  5. BurningFuel

    CA6NM Pump Case Weld Repair

    I have a issue with a CA6NM slurry case, With a complete pmi the results show 300 s.s., Inco 82 and other unknown materials in the wetted areas, The case has boron coating, Wet mag shows well the major cracks are visible but there are small spider web cracks and with grinding go over 1/2" deep...

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