This part comprises ideas with regards to the qualification of welding and brazing tactics as required by means of different Code Sections for part manufacture. It additionally covers ideas in relation to the qualification and requalification of welders, brazers, and welding and brazing operators so that they may possibly practice welding or brazing as required via different Code Sections within the manufacture of parts. Welding and brazing information disguise crucial and nonessential variables particular to the welding or brazing technique used
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Additional info for 2007 BPVC Section IX - Welding and Brazing Qualifications
The width and depth of penetration of each The weld depth (extent of fusion) shall be a minimum of 20% of the thickness of the thinner ply (in each member) and a maximum of 80% of the total thickness of all plies. 10 07 2007 SECTION IX width of each strip shall be 11⁄2 in. (38 mm) and the minimum width weld shall be measured to the nearest hundredth of an inch. 1. 2 Acceptance Criteria — Peel Test and Macro-Examination. In order to pass the peel test and macro-examination, the dimensions of the fusion zone (averaged) and the penetration (averaged) shall be within the range of dimensions of those specified on the WPS that was used to make the test coupon.
The pipe is not to be rotated during welding. 6, illustration (e). 6, and as described in the following paragraphs, except that an angular deviation of ±15 deg from the specified horizontal and vertical planes is permitted during welding. 5. 1 Tension Tests. Tension tests as described in QW-150 are used to determine the ultimate strength of groove-weld joints. 1 Flat Position 1F. Plates so placed that the weld is deposited with its axis horizontal and its throat vertical. 5, illustration (a). 2 Guided-Bend Tests.
4. 4 Subsize Transverse Face and Root Bends. 3(a). 5 Longitudinal-Bend Tests. 6 Longitudinal Face Bend. The weld is parallel to the longitudinal axis of the specimen, which is bent so that the face surface becomes the convex surface of the bent specimen. 3(b). Guided-bend test specimens shall be prepared by cutting the test plate or pipe to form specimens of approximately rectangular cross section. The cut surfaces shall be designated the sides of the specimen. The other two surfaces shall be called the face and root surfaces, the face surface having the greater width of weld.
2007 BPVC Section IX - Welding and Brazing Qualifications by ASME