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  1. TysonS

    Welding of Duplex Tubes to Inconel 625 tubesheets.

    I am trying to get some information on welding Duplex Stainless Tubes (P10H) to Inconel 625 (P43)tubesheets for use in air-cooled heat exchangers. Is it possible to weld these alloys together? And what specification of filler metal would one employ? This will obviously be a GTAW procedure.
  2. TysonS

    MTLTV

    Can someone please tell me what MTLTV stands for? For example: SA516-70N MTLTV. Thanks
  3. TysonS

    SA336 P91 Impact Exemption Curve

    I have an SA336-P91 material, and am trying to determine whether I can apply curve B of UCS-66 to exempt it form impact testing. I have an MTR that references the material as having a fine grain structure. Would this be covered under Curve A or Curve B?

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