[MW:21749] Use of 2 welders on sigle large bore piping joint welding

Hello Najm,

In API 1104, paragraph 6, you can qualify your welders using a full circunferential joint or by segments, if you are going to use two or more welders, each one must be qualified in a complete circunferential weld or by segments in flat, vertical and overhead positions.

You should specify in your WPS how many welders are you going to use and direction of welding among others variables. You can look for more information in your specification, contract and construcción code.

Sergio Antonio Muñoz Pinzón
IWE-IIW
http://weld-ing.blogspot.com

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