While ASME publishes hundreds of standards, is the primary "qualification code" used globally for welding, brazing, and fusing. It does not dictate how to build a specific product—that is the job of "construction codes" like Section VIII (Pressure Vessels) or B31.3 (Process Piping)—but it defines the rules for ensuring a weld will be reliable. 1. Welding Procedure Specification (WPS)
The WPS is a step-by-step "recipe" that guides welders in performing specific tasks. It details critical parameters known as , which include: Base Metal: The types of materials being joined. Filler Metal: The specific electrodes or wires used. welding standard asme
While the WPS/PQR validates the process , the validates the person . It tests a welder's manual skill in following a qualified WPS. For example, a welder who qualifies on a flat plate might not be qualified to weld a pipe in an overhead position. Go to product viewer dialog for this item. While ASME publishes hundreds of standards, is the
A WPS is not valid unless it is supported by a . This document records the actual values used during a test weld and the results of mechanical testing (e.g., tensile and bend tests) to prove that the proposed procedure produces a sound joint. 3. Welder Performance Qualification (WPQ) Welding Procedure Specification (WPS) The WPS is a
ASME Section IX F-Number Guide - Welding Filler Material Grouping (A4 Digital Download)
Methods such as SMAW (Stick), GTAW (TIG), or GMAW (MIG).
Voltage, amperage, and preheat/post-weld heat treatment requirements. 2. Procedure Qualification Record (PQR)