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:
, 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 of GDC 14, GOC 31, and §50.55a regarding prevention of 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 ft-lbs and lateral expansion as shown by Charpy. V-notch (C ) impact tests, all materials shall meet the acceptance standards of Article NB-2300 of the Code, Section III, and the requirements of Sections IV.A.2 and IV.A.3 of Appendix G, 10 CFR Part 50, as follows: 5.2.3-6 Rev. 2 - July 1981 (1) The special acceptance requirements for fracture toughness of reactor vessels are covered by Standard Review Plan Section 5.3.1, "Reactor Vessel Materials." (2) Materials for piping (i.e., pipes, tubes, and fittings), pumps, and valves, excluding bolting materials, shall meet the require- ments of the Code, Section III, Paragraph NB-2332, and Appendix G, Paragraph G-3100. The required C values for piping are specified in Table NB-2332-1 of the Code, Sgction III. (3) Materials for bolting for which impact tests are required shall meet the requirements of the Code. Section III, Paragraph NB-2333. (4) Calibration of instruments and equipment shall meet the require- ments of the Code, Section III, Paragraph NB-2360. b. The acceptance criteria for control of ferritic steel welding are based upon the following regulatory guides and ASME Code provisions to satisfy the quality standards requirements of GDC 1, GDC 30, and §50.55a: (1) The amount of specified preheat must be in accordance with the requirements of the Code, Section III, Appendix D, Paragraph D-1200, supplemented by Regulatory Guide 1.50,