- #Asme bpvc section ix welding and brazing qualifications code#
- #Asme bpvc section ix welding and brazing qualifications plus#
- #Asme bpvc section ix welding and brazing qualifications series#
Using Table QW-452.1(b) note 2, the diameter range from 1/2" up to the diameter of the piece used to qualify your welder can be used on the small diameter. This would provide you with the maximum thickness range.
A piece of pipe with a thickness of 0.5" or greater, so 2.5" NPS Sch.
This really depends on your work and the ranges you work in but from a strictly thickness and diameter standpoint, the follow would provide the greatest range with the least number of tests. What is the best test coupon for performance qualifications? This can be useful for certain F-numbers since qualifying on one may qualify the welder for multiply reducing the amount of tests required.
Visual examination is also required detailed in QW-302.4. Typically bend tests in table QW-452.1(a) are performed but volumetric NDE can be used as well, which is outlined in QW-302.2.
#Asme bpvc section ix welding and brazing qualifications series#
1 -Pipe Threads, General Purpose, Inch Twelve Standards from the B16 Series on pipe flanges and fittings B31. BPVC-IX - Section IX, Welding and Brazing Qualifications. Once welded the test coupons must be tested as outlined in QW-304. Do refer to ASME Section IX about the PWHT ASME B31. If the test was on 2” NPS, he would be qualified to weld 1” NPS and up. If the welder were tested on 1/2” NPS pipe, he would be qualified to weld ½” and up. QW-403.16 refers to table QW-452.3 for permitted diameter ranges. For example, a change in pipe diameter has reference to QW-403.16 for the GTAW process. Each variable has a reference to a paragraph in the welding data section that provides the qualification range for that variable.
#Asme bpvc section ix welding and brazing qualifications plus#
Intended for manufacturers, users, constructors, designers and others concerned with the design, fabrication, assembly, erection, examination, inspection and testing of pressure vessels, plus all potential governing entities.Depending on the welding process different essential variables apply.
#Asme bpvc section ix welding and brazing qualifications code#
ASMEs Boiler and Pressure Vessel Code (BPVC) BPVC-IX Welding and Brazing Qualifications. This Section contains rules relating to the qualification of welding, brazing, and fusing procedures as required by other BPVC Sections for component manufacture. It also covers rules relating to the qualification and requalification of welders, brazers, and welding, brazing and fusing machine operators in order that they may perform welding, brazing, or plastic fusing as required by other BPVC Sections in the manufacture of components. Welding, brazing, and fusing data cover essential and nonessential variables specific to the joining process used.Ĭareful application of this Section will help users to comply with applicable regulations within their jurisdictions, while achieving the operational, cost and safety benefits to be gained from the many industry best-practices detailed within these volumes. 9 2.1 SECTION I RULES FOR CONSTRUCTION OF POWER BOILERS.