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:
n the ASME Code, Section III, Appendix I, or described in detail in the ASME Code, Section II, Parts A, 8, and C. Regulatory Guide 1.85, "Code Case Acceptability ASME Section III Materials," describes the acceptable Code Cases to be used in conjunction with the above specifications. (Applicable to materials reviewed in item 1.1 by HTEB.) Special requirements for BWR piping materials and materials processing are described in NUREG-0313, "Technical Report on Material Selection and Processing Guidelines for BWR Coolant Pressure Boundary Piping." 2. Compatibility of Materials with the Reactor Coolant The requirement of GDC 4 relative to compatibility of components with environmental conditions are met by compliance with the applicable provi- sions of the ASME Code and by compliance with the recommendations of Regulatory Guide 1.44. Ferritic low alloy steels and carbon steels, which are used in many principal pressure-retaining components, are clad with a layer of austenitic stainless steel. If cladding is not used, conservative corrosion allowances must be indicated for all exposed surfaces of carbon and low alloy steels, as indicated in the ASME Code, Section III, NB-3120, "Corrosion." (Applicable to materials reviewed by CMEB as specified in item I.2..) Unstablilized austenitic stainless steel of the AISI Type 3XX series used for components of the RCPB must conform to the recommendations of Regu- latory Guide No. 1.44, "Control of the Use of Sensitized Stainless Steel," and the positions of NUREG-0313, including verification of nonsensitiza- tion of the material by an approved test. (Applicable to materials reviewed by MTEB as specified in item I.1.) 3. Fabrication and Processing of Ferritic Materials (Applicable to materials reviewed by MTEB as specified in items I.3.a, I.3.b, and I.3.c.) a. The acceptance criteria for fracture toughness are the requirements of Appendix G, "Fracture Toughness Requirements," of 10 CFR Part 50. These criteria satisfy the requirements