Document: NUREG-0800
Document ID: 38291c4d-6d61-4922-8b44-6af61374cfaa
Document Type: srp
Title: ENGINEERED SAFETY FEATURES MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340646.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.1.1
CFR Part: 
CFR Title: 

Content:
Appendix I of Section III of the Code, and with parts A, B, and C of Section II of the Code. He verifies that cold-worked austenitic stainless steels used in fabrication of the ESF are in conformance with subsection II.A.L.a of this SRP section. The methods of controlling sensitized stainless steel in the ESF systems are examined by the reviewer who verifies that the methods are in conform- ance with Regulatory Guide 1.44. This applies especially to the verifica- tion of nonsensitization of the materials, and to the qualification of welding procedures using ASTM A262. If alternative methods of testing the qualification welds for degree of sensitization are proposed by the applicant, the reviewer determines if these are satisfactory, based on the degree to which the alternate methods provide the needed results. The methods for controlling the amount of delta ferrite in stainless steel weld deposits are examined by the MTEB reviewer in accordance with Regula- tory Guide 1.31, "Control of Ferrite Content in Stainless Steel Weld Metal." The reviewer verifies that the controls of ferritic steel welding are in conformance with subsection II.A 1.b of this SRP section. The reviewer verifies that the fracture toughness of the materials is in accordance with the requirements of the Code. B. Secondary Review Area 1. Composition and Compatibility of Engineered Safety Features Fluids The reviewer (CMEB) considers the composition of the spray solutions and any mixing processes that might occur during operation of the sprays. The reviewer (CMEB) examines the information on the compatibility of the ESF materials of construction with the ESF fluids to verify that all materials used are compatible. The reviewer (CMEB) verifies that components and systems are cleaned in accordance with Regulatory Guide 1.37. The reviewer (CMEB) determines whether non-metallic thermal insulation will be used on components of the ESF, and if it is, the reviewer verifies that the amount of leachable