S9074-AR-GIB-010/278
Specified herein and in MIL-STD-248. Where RT is a requirement for the class of welding. MT or PT may be used in 1ieu of RT where finished weld thickness does not exceed 3/8 inch or half the design thickness of the base material . whichever is less. In addition. where RT would normally be required for the class of welding involved and the repair falls within a non-fluid boundary area (such as misdrilled flange bolt holes and so forth). case basis approval to delete RT may be obtained from the authorized representative. Repairs on P-1. P-LT, A-1. A-2. A-3. A-F or A-LT coaponcnts shall be documented and records maintained available to the authorized representative for review. These repair records shall include the following: name and identification of component: description of defects repaired (location. length. width. and depth of excavation): base material: welding filler metal : post heat treatment (where applicable): and final inspection results. 10.3.5.1 Arc strikes and removal sites of welded attachments shall be ground to fair smoothly into base material surfaces. Where grinding reduces thickness below design requirements. areas shall be restored by welding and grinding. Finish ground areas. whether repair welded or not, shall be inspected by MT, PT, or VT at 5X magnification where any of the following apply: weldment is class P-1. P-LT. A-1. A-2. A-3. A-F. or A-LT: or base material is S-1 (with carbon content 0.35 percent or greater). S-3. S-3A. 5-4. S-5. 5-6. S-6A. S-11. S-51. S-52 or S-53. 10.3.5.2 Base metal weld repairs of class P-3 brazed piping system components shall be inspected in accordance with 10.3.5 using the appropriate equivalent welded piping system classification (P-1. P-2. or P- LT) for the system after matching the brazed piping system fluid. operating pressure. and operating temperature to the equivalent welded piping system classification for those system conditions. 10.3.5.3 Where buildup by welding in a joint to correct oversize root openings or errors in joint preparation is accomplished. it should be done prior to fitting and unless specifically approved otherwise. such buildup of each joint edge shall not exceed 1/2T or 1/2 inch. whichever is less (where T is the thickness in way of the weld buildup member being welded). The buildup allowed for both joint edges my be applied to one joint edge. 10.3.5.3 Where buildup by welding in a joint to correct oversize root openings or errors in joint preparation is accomplished. it should be done prior to fitting and unless specifically approved otherwise. such buildup of each joint edge shall not exceed 1/2T or 1/2 inch. whichever is less (where T is the thickness in way of the weld buildup member being welded). The buildup allowed for both joint edges may be applied to one joint edge. 10.3.6 Weld deposited cladding. hardsurfacing. and buttering. Weld deposited cladding or hardsurfacing shall be VT and PT inspected: acceptance criteria shall be in accordance with 10.4.2. Buttering shall be inspected by MT or PT method. as applicable. Where joint edges are buttered prior to joint welding and the joint requires RT inspection. the buttered edges shall also require RT inspection. The buttered area and the completed weld can be radiographed at the same time. Where MT or PT inspection of the completed joint is required. all exposed surfaces of the buttered area shall also be inspected during the inspection of the finished weld joint. In addition. weld deposited buttering that foms part of a pressure boundary subject to submergence pressure shall also required UT inspection to detect defects and lack of bond prior to joint welding. UT inspection shall be in accordance with MIL-STD-27l as wdified by 10.4.4.1. Acceptance criteria shall be in accordance with 10.4.4.2. 10.3.7 Loss of preheat and interns. Melds for which the preheat and interpass temperature is permitted to drop below temperatures specified in table
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