Document: NUREG-0800
Document ID: 93695235-ba5b-4bfb-be93-d9aec2460bd0
Document Type: srp
Title: STEAM AND FEEDWATER SYSTEM MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0631/ML063190016.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.3.6
CFR Part: 
CFR Title: 

Content:
al selection and fabrication process controls for austenitic stainless steel. 2. Fracture Toughness of Class 2 and 3 Components The reviewer determines that fracture toughness properties of components in the steam and feedwater systems are in conformance with subsection II.2 of this SRP section. 3. Flow-Accelerated Corrosion The reviewer verifies that the applicable operating experience pertaining to FAC resistance has been considered in the design of steam and feedwater systems such that the effects of FAC are minimized for the lifetime of the plant. In addition to design considerations, GL 89-08 stressed the importance of implementing formalized procedures or administrative controls to ensure continued long- term implementation of an FAC monitoring program for piping and components within its design basis. Guidelines provided by EPRI in NSAC-202L-R2 include procedures or administrative controls to assure that the structural integrity of all carbon steel lines containing high-energy fluids (two-phase, as well as single-phase) is maintained by minimizing FAC effects. A. The reviewer verifies that piping subject to FAC degradation has been designed using materials resistant to FAC . B. The reviewer verifies that the applicant has specified a corrosion allowance that covers the design life of the plant and meets Section III of the ASME Code. C. The reviewer verifies that the design and layout of piping minimizes the FAC effects from system piping and component configuration and geometry, water chemistry, piping and component material, fluid temperature (including flash points), and fluid velocity. For review of a DC application, the reviewer should follow the above procedures to verify that the design, including requirements and restrictions (e.g., interface requirements and site parameters), set forth in the final safety analysis report (FSAR) meets the acceptance criteria. DCs have referred to the FSAR as the design control document (DCD). The reviewer should also