Document: NUREG-0800
Document ID: 2c1e60ee-a3b4-4f26-8ebd-56dc7a8435b6
Document Type: srp
Title: THREADED FASTENERS ! ASME CODE CLASS 1, 2, AND
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550058.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.13
CFR Part: 
CFR Title: 

Content:
d in the 2001 Edition of Section III. Corresponding paragraphs may vary in other Editions or Addenda of Section III. 3.13-7 March 2007 Table 3.13-2 ASME Section XI Examination Categories for Inservice Inspections of Mechanical Joints in ASME Code Class 1, 2, and 3 Systems that Are Secured by Threaded Fastners 1 Examination Type ASME Class 1 Criteria ASME Class 2 Criteria ASME Class 3 Criteria Specific Bolting Inspections Table IWB-2500-1, Exam. Cat. B-G-1 for bolting greater than 2 inches in diameter Table IWC-2500-1, Exam. Cat. C-D for bolting greater than 2 inches in diameter Not Applicable - Currently there are no examination categories that correspond to those that exist for ASME Class 1 and 2 bolting. Table IWB-2500-1, Exam. Cat. B-G-1 for bolting less than or equal to 2 inches in diameter System Pressure Tests Table IWB-2500-1, Exam. Cat. B-P Table IWC-2500-1, Exam. Cat. C-H Table IWD-2500-1, Exam. Cat. D-B Note 1: Section XI paragraphs listed in this table represent those specified in the 2001 Edition of Section XI. Corresponding paragraphs may vary in other Editions or Addenda of ASME Section XI. 2. Preservice and Inservice Inspection Requirements The preservice and inservice inspection provisions for mechanical joints are acceptable if the ASME Code, Section XI criteria shown in Table 3.13-2 are appropriately specified by the applicant for ASME Code Class 1, 2, and 3 systems. For system pressure testing, the requirements of 10 CFR 50.55a(b)(2)(xxvii) for visual examination of certain insulated bolting or studs during system pressure testing should also be identified. Technical Rationale The technical rationale for application of these acceptance criteria to the areas of review addressed by this SRP section is discussed in the following paragraphs: 1. GDCs 1 and 30 require that SSCs important to safety be designed, fabricated, erected, tested and inspected to quality standards commensurate with the importance of the safety functions to be performed. GDC 14