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  1. tonyuk53

    ASME IX Welder Qualification

    My apologies for not making it clear, 121 & 123 process as defined by EN ISO 4063.
  2. tonyuk53

    ASME IX Welder Qualification

    Hi, I require to qualify submerged arc welders to ASME IX using process single wire (121) and tandem wire (123. Although the process and filler will remain the same does changing from single wire to twin wire become an essential variable. If qualified on twin wire does it automatically qualify...

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