Document: NUREG-0800
Document ID: 4a46b35d-2e81-4517-9716-154b19f57049
Document Type: srp
Title: REACTOR COOLANT PRESSURE BOUNDARY MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0631/ML063190006.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.2.3
CFR Part: 
CFR Title: 

Content:
3 - March 2007 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 (Cv) impact tests, all materials shall meet the acceptance standards of Article NB-2300 of the Code, Section III, and the requirements of Sections IV of Appendix G, 10 CFR Part 50, as follows: (1) Materials for piping (i.e., pipes, tubes, and fittings), pumps, and valves, excluding bolting materials, shall meet the requirements of the Code, Section III, Paragraph NB-2331 or NB-2332 (as applicable based upon thickness), and Appendix G, Paragraph G-3100 to the Code, Section III. The required Cv values for piping, pumps, and valves are specified in Table NB-2332(a)-1 of the Code, Section III. (2) Materials for bolting for which impact tests are required shall meet the requirements of the Code, Section III, Paragraph NB-2333. (3) Calibration of instruments and equipment shall meet the requirements of the Code, Section III, Paragraph NB-2360. The special acceptance requirements and staff positions for fracture toughness of reactor vessels are covered by SRP Section 5.3.1. 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-1210. These requirements are supplemented by positions described in Regulatory Guide 1.50, “Control of Preheat Temperature for Welding of Low Alloy Steel.” The supplemental acceptance criteria for control of preheat temperature are as follows: (a) According to the welding procedure qualification minimum preheat and maximum interpass temperatures should be specified and the welding procedure should be qualified at the minimum preheat