2007 BPVC Section IX - Welding and Brazing Qualifications - download pdf or read online


ISBN-10: 0791830713

ISBN-13: 9780791830710

This part includes ideas on the subject of the qualification of welding and brazing systems as required by way of different Code Sections for part manufacture. It additionally covers principles with regards to the qualification and requalification of welders, brazers, and welding and brazing operators so that they could practice welding or brazing as required by means of different Code Sections within the manufacture of elements. Welding and brazing information hide crucial and nonessential variables particular to the welding or brazing method used

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Acceptance criteria for the notch-toughness tests are as established in the other Sections of the Code. For certain materials permitted by the ASME/ANSI B31 Code for Pressure Piping or by selected Code Cases of the ASME Boiler and Pressure Vessel Code but which are not included within the ASME Boiler and Pressure Vessel Code Material Specifications (Section II), S-Number groupings are assigned in table QW/QB-422. These groupings are similar to the P-Number groupings of table QW/QB-422. 2. 4 Combination of Welding Procedures (a) More than one WPS having different essential, supplementary essential, or nonessential variables may be used in a single production joint.

Other Sections of the Code may specify different requirements than those specified by this Section. Such requirements take precedence over those of this Section, and the manufacturer or contractor shall comply with them. 1 A Welding Procedure Specification (WPS) is a written document that provides direction to the welder or welding operator for making production welds in accordance with Code requirements. Any WPSs used by a manufacturer or contractor that will have responsible operational control of production welding shall be a WPS that has been qualified by that manufacturer or contractor in accordance with Article II, or it shall be an AWS Standard Welding Procedure Specification (SWPS) listed in Appendix E and adopted by that manufacturer or contractor in accordance with Article V.

1(f). 6 2007 SECTION IX opposite to each other. 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 the other quarter section shall be macro-examined in accordance with QW-184. When qualifying pipe-to-shape in the 5F position, the fracture specimen shall be removed from the lower 90 deg section of the mockup. QW-182 (b) the weld shall not have a concavity or convexity greater than 1⁄16 in. 5 mm) (c) there shall be not more than 1⁄8 in.

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2007 BPVC Section IX - Welding and Brazing Qualifications by ASME

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