This part includes ideas with regards to the qualification of welding and brazing methods as required by means of different Code Sections for part manufacture. It additionally covers ideas with regards to the qualification and requalification of welders, brazers, and welding and brazing operators so they may possibly practice welding or brazing as required by way of different Code Sections within the manufacture of parts. Welding and brazing information disguise crucial and nonessential variables particular to the welding or brazing strategy used
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Additional resources for 2007 BPVC Section IX - Welding and Brazing Qualifications
The test specimen that contains the start and stop of the weld shall be fracture tested in accordance with QW-182. A cut end of one of the remaining test specimens shall be macroexamined in accordance with QW-184. 2 Acceptance. The acceptance criteria shall be in accordance with that Section requiring drop weight tests. 3 Location and Orientation of Test Specimen. The drop weight test specimen, the crack starter location, and the orientation shall be as given in the Section requiring such tests.
Pipe with its axis inclined at 45 deg to horizontal. Welding shall be done without rotating the pipe. 4, illustration (d). welding. 6, illustration (b). (b) Position 2FR. Pipe with its axis horizontal and the axis of the deposited weld in the vertical plane. The pipe is rotated during welding. 6, illustration (c). 1 Stud Welding. 1). In all cases, the stud shall be perpendicular to the surface of the plate or pipe. 8. 3 Overhead Position 4F. Pipe with its axis vertical so that the weld is deposited on the underside of the horizontal surface and against the vertical surface.
This may be by amendment to the WPS or by use of a new WPS. Changes in essential or supplementary essential (when required) variables require requalification of the WPS (new or additional PQRs to support the change in essential or supplementary essential variables). (d) Format of the WPS. The information required to be in the WPS may be in any format, written or tabular, to fit the needs of each manufacturer or contractor, as long as every essential, nonessential, and, when required, supplementary essential variables outlined in QW-250 through QW-280 is included or referenced.