Document: NUREG-0800
Document ID: d4acff25-51e1-4891-b590-9ad78ef4833e
Document Type: srp
Title: REACTOR VESSEL MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340633.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.3.1
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CFR Title: 

Content:
ng, maintenance, and postulated' accident conditions. Compliance with the pro- visions of Appendix G, 10 CFR Part 50, satisfies the requirements of GDC 14, GDC 31, and §50.55a regarding prevention of fracture of the reactor coolant pressure boundary. 9. Changes in the fracture toughness of material in the reactor vessel beltline caused by exposure to neutron radiation have been assessed properly, and adequate safety margins against the possibility of vessel failure are provided as the material surveillance requirements of ASTM E 185 and Appendix H, 10 CFR Part 50, are met. Compliance with these documents assures that the surveillance program constitutes an acceptable basis for monitoring radiation-induced changes in the fracture toughness of the reactor vessel material and satisfies the requirements of GOC 32 regarding an appropriate material surveillance program for the reactor vessel. 10. Integrity of the reactor vessel studs and fasteners is assured by conformance with the recommendations of Regulatory Guide 1.65, "Materials and Inspections for Reactor Vessel Closure Studs." Compliance with these recommendations satisfies the quality standards requirements of GDC 1, GDC 30, and §50.55a; the prevention of fracture of the RCPB requirement of GDC 31; and the require- ments of Appendix G, 10 CFR Part 50, as detailed in the provisions of the ASME Code, Sections II and III. V. IMPLEMENTATION The following is intended to provide guidance to applicants and licensees regarding the NRC staff's plans for using this SRP section. Except in those cases in which the applicant proposes an acceptable alternative method for complying with specified portions of the Commission's regulations, the method described herein will be used by the staff in its evaluation of conformance with Commission regulations. Implementation schedules for conformance to parts of the method discussed herein are contained in the referenced regulatory guides. VI. REFERENCES 1. 10 CFR Part 50, Section