Re: [MW:10906] Diameter of electrode-reg

He can go one above and one below.if he is qualified in 3.15 mm can weld 4.0 mm and 2.5 mm.

On Sat, Apr 30, 2011 at 3:22 PM, k.ilangkumaran ilangkumaran <k.ilangkumaran@yahoo.com> wrote:

Dear Experts,                  While my routine inspection of welding I have noticed Diameter of the electrode used for the capping was not as per the qualified WPS and I was told the diameter of the electrode is not an essential variables.     WPS for SMAW   Now as per the sec IX; Table QW-253   1) the essential variable QW-404.30   2) Supplementary variables QW-404.7/.12   3)  Non essential varaiable QW-404.6          & as per the QW-353   1) QW-404.15/.30 were the essential variables for welder qualification.   So if the diameter of electrode used in production welds beyond 6mm then only the WPS needs to be re written? or Should we insist the welder to use what ever mentioned in the qualified WPS? or the welder should use the electrode that he used while performing his WQT. Can somebody expain me in details how to deal this?   Regards Ilangkumaran

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