Document: NUREG-0800
Document ID: d8b522d4-dee5-4122-89d4-b2b45d0ca729
Document Type: srp
Title: REACTOR COOLANT PRESSURE BOUNDARY MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070420.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.2.3
CFR Part: 
CFR Title: 

Content:
hich 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-31203121 , "Corrosion." (Applicable to materials reviewed by CMEB as specified 52 in item I.2.)53 Unstabilized austenitic stainless steel of the AISI Type 3XX series used for components of the RCPB must conform to the recommendationspositions of Regulatory Guide No. 54 1.44., "Control of the Use of Sensitized Stainless Steel," and the positions of NUREG- 55 0313, Positions related to BWR piping materials, including verification of 56 nonsensitization of the material by an approved test, are described in Attachment A to Generic Letter 88-01. The technical bases for the positions provided in Generic Letter 88-01 and similar recommendations related to minimizing stress corrosion cracking in susceptible piping of BWRs are detailed in NUREG-0313. (Applicable to materials 57 reviewed by MTEB as specified in item I.1.)58 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.)59 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 of GDC 14, and GDC 31, and §50.55a regarding prevention of 60 fracture of the RCPB. Appendix G requires that the pressure-retaining components of the RCPB that are made of ferritic materials shall meet the requirements for fracture toughness during system hydrostatic tests and any condition of normal operation, including anticipated operational occurrences. With respect to absorbed energy in J (ft-lbs) and lateral expansion as shown by Charpy V-notch (C ) impact tests, all 61 v materials shall meet the acceptance standards of Article NB-2300 of