S9074-AQ-GIB-010/248 Rev 1
4-3 WRITTEN WELDING PROCEDURE. 4-3.1 ESSENTIAL ELEMENTS OF A WELDING PROCEDURE. Welding procedures shall be written such that instructions, parameters, and equipment shall ensure conformance with this document and all fabrication documents for which they will be used. Unless otherwise specified in the applicable fabrication document, the welding procedure shall include, at a minimum, the applicable essential elements listed in table 7-5 for each base material/filler metal combination per 4-2.7.1. For stud welding, see 4-4.4.2. Each welding procedure shall also include the following information:
a. Activity name b. Welding procedure number, revision, and date c. Supporting procedure qualification test report number, revision, and date d. Certification statement per 4-2.2
4-3.1.1 Identification of S-23 Welding Procedure Applicability. For S-23 materials, the welding procedure shall list each specific application for which the welding procedure will be used (see table 7-1, footnote 8), including a reference to the governing required NAVSEA approvals if applicable. For applications of S-23 alloys not specifically permitted by a fabrication document, the following shall also be listed: Component/system b. Weld location for welds not identified by drawing c. A statement prohibiting repair welding of other than existing weld locations, unless specific approval is obtained for each repair or type of repair 4-3.2 WELDING PROCEDURE INTENT. Welding procedures shall ensure sound welds when executed by welding personnel qualified to this document. 4-4 SPECIFIC QUALIFICATION REQUIREMENTS. a. These paragraphs provide the requirements for qualification test assembly design, size, orientation, and methods of evaluation for qualification of welding procedures for both general applications and special applications. 4-4.1 GROOVE WELDS AND FILLET WELDS (FOR TEMPERATURE CONTROL AREAS, ALSO SEE 4.4.10). 4-4.1.1 Base Material. Qualification test assemblies shall be made using either base materials procured to the applicable specifications referenced in the procedure or using base materials of the same alloy type or grade procured to alternate Government or commercial specifications. Base material forms may consist of either plate or pipe, or other material as specified in table 7-6. 4-4.1.2 Test Assembly Size. Typical test assemblies are shown in figures 7-2 and 7-3. The size of each test assembly shall be sufficient to permit removal of the required test specimens, or additional test assemblies shall be welded as required, to furnish the remaining test specimens (see 4-5). For S-10H materials, see 4-7.5.f and 4-7.10. 4-4.1.3 Test Assembly Joint Design. The test assembly shall employ a butt joint in accordance with MIL-STD-22 or other applicable fabrication document. Joint design requirements for heat affected zone (HAZ) toughness testing shall be as shown in figure 7-24. A test assembly for preplaced filler metal insert joints shall include a consumable insert of the material and shape to be qualified. For S-10H materials, see 4-7.5.f and 4-7.10. 4-4.1.3.1 Dissimilar Metal Welds. Except for backing joints per 4-4.1.3.1.1, the test assembly shall be the joint design shown in figure 7-7 or a standard butt joint design as specified in the applicable fabrication document or MIL-STD-22. For the purposes of tables 7-7 and 7-8, the following combinations of S-groups are not considered to be dissimilar metal welds within each grouping:
a. S-1, S-2, S-3, S-3A, S-4, S-5, S-11A, S-11B, S-11C, S-11D, S-11E, and S-11F b. S-21, S-22, S-23, S-25, and S-26
4-6
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