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  • Users: carloz
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  1. carloz

    SS dual grade

    I'm working for a Petrochemical Indutry involed in vlaves production: I would be happy if someone can explane to me the meaning of "dual grade" for SS material (e.g. 316/3163L) and whether some specs/ASME code decalre the material as dual grade or not. Thanks Carlos
  2. carloz

    Welding compatibility F11 Vs A105N

    I need to know whether is possible to weld a valve made of ASTM A182 F11 with pipe in ASTM A105N. In this case what filler metal can be suitable? Probably we must issue a new WPS/PQR in order to qualify this welded bead. Thanks C.

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