Document: NUREG-0800
Document ID: fbf00155-ed67-4c5f-bb08-246909eb564a
Document Type: srp
Title: REACTOR COOLANT PRESSURE BOUNDARY MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340601.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.2.3
CFR Part: 
CFR Title: 

Content:
taff's safety evaluation report: The staff concludes that the plant design is acceptable and meets the requirements of General Design Criteria 1, 4, 14, 30, and 31 of Appendix A of 10 CFR Part 50; the requirements of Appendices 8 and G of 10 CFR Part 50; and the requirements of §50.55a of 10 CFR Part 50. This conclusion is based on the staff's review of the SAR. The materials used for construction of components of the reactor coolant pressure boundary (RCPB) have been identified by specifica- tion and found to be in conformance with the requirements of Section III of the ASME Code and [for BWRs only] in conformance with the requirements of NUREG-0313. Compliance with the above Code provisions for material specifications satisfies the quality stand- ards requirements of GOC 1, GDC 30, and §50.55a. The materials of construction of the RCPB exposed to the reactor coolant have been identified and all of the materials are compatible with the primary coolant water, which is chemically controlled in accordance with appropriate technical specifications. This com- patibility has been proven by extensive testing and satisfactory performance. This includes conformance with the recommendations of Regulatory Guide 1.44, "Control of Sensitized Stainless Steel," and [for BWRs only] conformance with the requirements of NUREG-0313. General corrosion of all materials except unclad carbon and low alloy steel, will be negligible. For these materials, conservative corrosion allowances have been provided for all exposed surfaces in accordance with the requirements of the Code, Section 111. The above evidence of compatibility with the coolant and compliance with the Code provisions satisfy the requirements of GDC 4 relative to compatibility of components with environmental conditions. The materials of construction for the RCPB are compatible with the thermal insulation used in these areas and are in conformance with the recommendations of Regulatory Guide 1.36, "Nonmetallic Thermal