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
CFR Part: 
CFR Title: 

Content:
or those plants that were designed and constructed prior to the effective date of Appendix G, 10 CFR Part 50, some of the fracture toughness require- ments of Appendix G may not be explicitly met. The detailed procedure for conducting the review of such cases is found in SRP Section 5.3.2, "Pressure- Temperature Limits," and in MTEB Branch Technical Position 5-2, "Fracture Toughness Requirements." Exemptions from the regulation can only be granted when the applicant has demonstrated equivalence to the required margin of safety. 6. Material Surveillance The reviewer verifies that the information contained in the SAR and the Technical Specifications is-complete enough to determine that the surveil- lance program will comply with Appendix H, 10 CFR Part 50. The following information must be provided as a minimum: a. The reviewer verifies that the PSAR states the end-of-life fluence calculated for the vessel beltline, the maximum predicted shift in reference transition temperature (RTNDT), the number of capsules, and the number and types of specimens to be placed in the capsules, and that the program is in compliance with ASTK E 185 and Appendix H, 10 CFR Part 50. b. The reviewer verifies that the FSAR provides the information listed above and, in addition, includes results of all fracture toughness tests, chemical analyses of all materials in the beltline region, and provides the information needed by the reviewer to evaluate the adequacy of the program. 7. Reactor Vessel Fasteners The reviewer verifies that the information in the SAR covers all requirements for reactor vessel studs and other fasteners, as described in the previous section. For FSARs, the results of tensile and fracture toughness tests performed on the fastener materials are checked to ensure that all require- ments are met. IV. EVALUATION FINDINGS The reviewer verifies that sufficient and adequate information has been provided to satisfy the requirements of the SRP section, and that his evaluation