This category of articles mainly focusses on welder qualifications, procedure qualifications, and a few practice cases regarding ASME Section IX.
Welding without backing takes greater skill on the part of welder. Which is why, Section IX has listed deletion of backing as an essential variable for welder qualification. This article will let you know about the various aspects of with and without backing for welder qualification. The latter half of the article gives some attention … Read more
ASME Section IX permits covering multiple welder qualification through single test coupon. In this article, I will discuss various things that must be kept in mind when opting for qualifying multiple welding performance qualifications in a single coupon. A welder must qualify for each of the processes that he intends to use in production welding. … Read more
ASME Section IX considers that depositing corrosion resistant overlay requires a different skill than the skill required to weld on groove welds, fillet welds, build ups, etc. Thus, in QW 381, Section IX provides for the stipulations governing the welding performance qualifications for corrosion-resistant weld metal overlays. In this article, we shall discuss various aspects … Read more
ASME Section IX permits welding performance qualifications through groove weld coupons as well as fillet weld test coupons. It is for the welding engineer to decide which kind of coupon would be appropriate for his application. In this article we will discuss how to make this choice, and other aspects surrounding welder qualification through fillet … Read more
Generally, the validity of a welder’s qualification is six months, as per ASME Section IX. The welder’s qualification is said to have expired if he has not welded with that process for a period of six months. However, provision has been given in Section IX for renewal of expired welder qualification too. Renewing the validity … Read more
In this article, we shall see about the various aspects related to the matter of validity of welder qualification as defined in ASME Section IX. Validity Of Welder Qualification As Per ASME Section IX? Generally, a qualification is valid for six months. However, the criterion for extending this validity as per Section IX is very … Read more
ASME Section IX provides for immediate retests in welding performance qualification (for both welders and welding operators) if one or more tests do not meet the specified acceptance criteria. The provisions for immediate retesting using mechanical testing, volumetric NDE, and visual examination have been clearly defined in QW 321. This article does not seek to … Read more
This article discusses some of the welder performance qualification FAQs that arise in a welding engineer’s mind in the process of welders’ qualifications in accordance with ASME Section IX. Does A Person Helping The Main Welder Need To Be Qualified As Per Section IX? In my shop, for important joints – often more than one … Read more
In this article, I have discussed some fundamental aspects of a Welder Performance Qualification in accordance with ASME Section IX. The article begins with some of the very basic questions such as what it means to qualify a welder, why should a welder be qualified at all, how to document a welder’s qualification etc. The … Read more