Document: NRC Regulatory Guide
Document ID: 08cebcdf-2e81-4e08-a508-9f6b4701c0a5
Document Type: regulatory_guide
Title: Design, Fabrication, and Materials Code Case Acceptability, ASME Section III (Rev. 40)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2219/ML22195A282.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.84
CFR Part: 
CFR Title: 

Content:
ugh the wall to qualify for use of the Code Case is not acceptable. Instead, the cavity must be examined when such an indication has been removed. N-279 Use of Torquing as a Locking Device for Section III, Division 1, Class 1, 2, 3, and MC Component Supports When torquing or other preloading is used as a locking device and the joint is later unloaded or disassembled, the bolting should be replaced unless it can be demonstrated or proved to the authorized nuclear inspector that the original bolting has not been permanently strained. 7/13/81 N-292 Depositing Weld Metal Prior to Preparing Ends for Welding, Section III, Division 1, Class 1, 2, and 3 Class 3 piping that is longitudinally welded and that has a weld efficiency factor of 1.0, as selected from ASME Code, Table ND-3613.4-1, “Weld Joint Efficiency Factor,” must receive a 100-percent volumetric examination (radiographic testing or ultrasonic testing) of the deposited weld metal in accordance with ASME Code, ND-5000, “Examination.” 2/20/04 N-310-1 Certification of Bolting Materials, Section III, Division 1, Class 1, 2, 3, MC, and CS Each applicant who applies the Code Case should include the answers to the following questions in the referencing safety analysis report: (1) Why does the bolting not meet ASME Code, NCA-3800 (or NA-3700)? (2) Where will the bolting be used in the plant? (3) How will the applicant show that the bolting material properties required by the equipment support design specification will be present in the actual bolting material? 7/1/82 N-314 Alternate Rules for Thread Engagement, Section III, Division 1 Applicants should identify the following items in their safety analysis report: (1) the minimum length of thread engagement (2) the procedure used to establish thread engagement 5/11/84 N-348 N-348-1 N-348-2 Use of SA-574 Socket Weld Head Cap Screws, Section III, Division 1 Applicants’ safety analysis reports should justify why the use of these socket head cap screws will not