Document: NUREG-0800
Document ID: aa2826ba-9e50-487f-8166-6282791ae259
Document Type: srp
Title: STEAM AND FEEDWATER SYSTEM MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350076.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.3.6
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Materials Engineering Branch (MTEB) Secondary - None 1. AREAS OF REVIEW General Design Criterion 1 requires that systems important to safety shall be designed to quality standards commensurate with the importance to safety of the functions to be performed. General Design Criterion 35 requires suitable inter- connections, leak detection, isolation, and contaminant capabilities be provided to assure that the safety system function (i.e., emergency core cooling) can be accomplished, assuming a single failure. The following areas relating to the general materials considerations for ASME Boiler and Pressure Vessel Code (hereafter "the Code"), Section III, Class 2 and 3 components of the steam and feedwater systems are reviewed. The review proce- dures for materials considerations for steam generators are given in Standard Review Plan Section 5.4.2.1. The class 2 and 3 components of the main steam and feedwater systems shall be as defined in Regulatory Guide 1.26, "Quality Group Classifications and and Standards for Water, Steam, and Radioactive Waste Contain- ing Components of Nuclear Power Plants." Class 1 component materials are covered in Standard Review Plan Section 5.2.3, "Reactor Coolant Pressure Boundary Materials." 1. Fracture Toughness of Class 2 and 3 Components The fracture toughness properties and requirements for Class 2 and 3 components are reviewed. Typical components in this review include steam generator shells in PWRs, as well as carbon or low alloy steel portions of steam and feedwater lines in both PWRs and BWRs. 2. Materials Selection and Fabrication a. The materials selected for all Class 2 and 3 components and their fabrication are reviewed. Rev. 2 - July 1981 USNRC STANDARD REVIEW PLAN Standard review plans are prepared for the guidance of the Office of Nuclear Reactor Regulation staff responsible for the review of applications to construct and operate nuclear power plants. These documents are made available to