Essential Variables for WPS Qualification as per ASME Section IX
Article II of ASME Section IX deals with welding procedure qualifications. Under QW-250 of Article II are contained a number of tables, titled QW-252 to QW-267. Each table is dedicated to a process such as SMAW, SAW, GTAW, and so on. These tables contain a listing of essential variables, supplementary essential variables and non-essential variables … Read more