Voltage, amperage, and preheat/post-weld heat treatment requirements. 2. Procedure Qualification Record (PQR)
| ASME Section | Title | Welding Relevance | |--------------|-------|--------------------| | | Materials | Specifies base metals (Part A), filler metals (Part C) – essential for WPS qualification. | | Section V | Nondestructive Examination | Defines RT, UT, MT, PT methods used for test coupon evaluation. | | Section VIII | Pressure Vessels | Requires qualified WPS per Section IX for all pressure boundary welds. | | Section I | Power Boilers | Similar requirement – Section IX qualification is mandatory. | | Section B31.1/31.3 | Power/Piping | Piping codes invoke Section IX for welder/welding procedure qualification. | welding standard asme
: Tensile tests, guided-bend tests, and notch-toughness tests. | | Section V | Nondestructive Examination |
Loss of ASME Stamp (U, S, PP, etc.), production shutdowns, legal liability, and catastrophic failures. | | Section B31
For engineers, welders, and quality control managers, understanding the nuances of ASME welding standards is non-negotiable. This article provides a deep dive into the most critical ASME welding codes, the qualification processes, and the practical steps to achieve compliance.