Document: NUREG-0800
Document ID: 91fee075-c567-438d-bf9f-47be3177b457
Document Type: srp
Title: ENGINEERED SAFETY FEATURES MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070453.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.1.1
CFR Part: 
CFR Title: 

Content:
e systems are reviewed in this SRP section. The fluid and material compatibility for the auxiliary systems that directly support the ESF systems identified above, include systems such as the Component Cooling Water (CCW), Station Service Water (SSW), and ESF ventilation. These systems are reviewed in this SRP 6 section upon request of the respective primary branch. A. MTEB as primary reviewer uses the evaluations by CMEB to complete the overall review of ESF materials. MTEBEMCB review areas include the materials and 7 fabrication procedures used in the design of engineered safety features. The specific 8 areas of review and review procedures are similar to those in SRP Section 5.2.3, "Reactor Coolant Pressure Boundary Materials," and to those of SRP Section 10.3.6, "Steam and Feedwater System Materials." The purpose of the review is to assure compatibility of the materials with the specific fluids to which the materials are subjected. The review is performed to assure compliance with the applicable Commission regulations stated inof 10 CFR Part 50, including the applicable General Design Criteria; and with the positions of applicable Regulatory Guides and Branch Technical Positions,; and also with the applicable provisions of the ASME Boiler and Pressure Vessel Code (hereinafter "the Code" Reference 19), including Section II, parts A, B, and C, Section III, Divisions 1 and 2, and Section IX. Areas that are reviewed include: mechanical properties of materials 9 (including fracture toughness), use of cold worked stainless steels, control of ferrite content in austenitic stainless steel welds, and control of ferritic steel welding. B. CMEBEMCB also reviews areas relating to ESF fluid chemistry, component and 10 system cleaning, and thermal insulation used in the containment. The fluid chemistry, cleaning and insulation evaluations are furnished to MTEB for incorporationed into the 11 final SER. These are further described as follows: 1. Composition and Compatibility of