Ethan Bale 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
ASME Section III Part NB, that deals with construction of Class 1 nuclear equipment, requires that all welding materials that is used in the construction of Class 1 equipment conform to the requirements of NB 2400. The Certificate Holder must ensure several aspects in procurement of these materials to ensure conformance to NB 2400. One … Read more
Non-consumable tungsten electrodes for GTAW (Gas Tungsten Arc Welding) or TIG (Tungsten Inert Gas) welding, generally are of several types. Types Of Tungsten Electrodes Tungsten electrodes types and their typical application can be identified by color-coded end marks as follows. Pure Tungsten Electrodes Pure tungsten electrodes are generally used on less critical welding operations than the tungsten electrodes … Read more