Document: NUREG-0800
Document ID: b4808a6f-81dd-45c9-8350-c8d58808bcd4
Document Type: srp
Title: STEAM GENERATOR MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070446.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.2.1
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Materials Engineering Branch (MTEB)Materials and Chemical Engineering Branch (EMCB)1 Secondary - Chemical Engineering Branch (CMEB)None2 I. AREAS OF REVIEW General Design Criteria 1, 14, 15, and 31 of Appendix A of 10 CFR Part 50 require that components of the reactor coolant boundary be designed, fabricated, erected and tested so as to have an extremely low probability of abnormal leakage, of rapidly propagating failure and of gross rupture. These criteria also requireAlso, that such design will have sufficient margin to 3 assure that design conditions are not exceeded during normal operation and anticipated operational occurrences. A review is made of the following areas reported in the applicant's safety analysis report (SAR). These are all related to the ASME Boiler and Pressure Vessel Code (Reference 11) (hereinafter 4 "the Code") Class 1 and Class 2 components of pressurized water reactor (PWR) steam generators, including all components that constitute part of the reactor coolant pressure boundary. A. MTEBEMCB reviews the following areas related to materials selection and design as 5 6 part of its primary review responsibility: DRAFT Rev. 3 - April 1996 5.4.2.1-2 1. Selection and Fabrication of Materials The materials selected for the steam generator are reviewed. Components of the steam generator are divided into two classes: Class 1, which includes material for those parts exposed to the primary reactor coolant, and Class 2, which includes materials for parts exposed to the secondary coolant water. The selection and fabrication of materials for all Class 1 and Class 2 components of pressurized water reactor (PWR) steam generators is reviewed for adequacy and suitability and for compliance with the requirements of the Code. Examples of materials that are currently being used for Class 1 components include the following: Tubing - ASME SB-163, Ni-Cr-Fe, annealed (Inconel 600) - ASME SB-163, Ni-Cr-Fe (Inconel 690)7 Tube Sheet -