Document: NUREG-0800
Document ID: d4acff25-51e1-4891-b590-9ad78ef4833e
Document Type: srp
Title: REACTOR VESSEL MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340633.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.3.1
CFR Part: 
CFR Title: 

Content:
ess steel are in conformance with the recommendations of Regulatory Guide 1.44, "Control of the Use of Sensitized Stainless Steel," because the controls used provide assurance that welded com- ponents will not be contaminated nor sensitized prior to and during the welding process. These controls satisfy the quality standards requirement of GDC 1, GDC 30, and §50.55a and the GDC 4 requirement relative to material compatibility. b. The controls regarding onsite cleaning and cleanliness control of austenitic stainless steel are in comformance with the recommendations of Regulatory Guide 1.37, "Quality Assurance Requirements for Cleaning of Fluid Systems and Associated Components of Water-Cooled Nuclear Power Plants," because the controls used provide assurance that austenitic stainless steel components will be properly cleaned onsite. The controls satisfy Appendix B of 10 CFR Part 50 regarding controls for onsite cleaning of materials and components. 5.3.1-12 Rev. 1 - July 1981 8. Fracture toughness of the reactor vessel and its appurtenances is controlled by conformance with Appendix G, 10 CFR Part 50, which specifies ASME Code provisions and supplementary requirements of Appendix G, 10 CFR Part 50. The fracture toughness tests required by the ASME Code and by Appendix G of 10 CFR Part 50 provide reasonable assurance that adequate safety margins against the possibility of nonductile behavior or rapidly propagating fracture can be established for all pressure-retaining components of the reactor coolant boundary. The use of Appendix G of the Code as a guide in establishing safe operating procedures, and use of the results of the fracture toughness tests performed in accordance with the Code and NRC regulations, will provide adequate safety margins during operating, testing, maintenance, and postulated' accident conditions. Compliance with the pro- visions of Appendix G, 10 CFR Part 50, satisfies the requirements of GDC 14, GDC 31, and §50.55a regarding prevention of