Document: NUREG-0800
Document ID: fbf00155-ed67-4c5f-bb08-246909eb564a
Document Type: srp
Title: REACTOR COOLANT PRESSURE BOUNDARY MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340601.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.2.3
CFR Part: 
CFR Title: 

Content:
nt. There are no compatibility concerns with the use of reflective metal insulation; the chief compatibility concern is with the use of nonmetallic insulation. A review is performed to assure that any such material specified by the applicant is in conformance with the acceptance criteria stated in subsection II.4.c of this SRP section. Verification is obtained that the material has been chemically analyzed by methods equivalent to those prescribed in Regulatory Guide 1.36 and that evidence is obtained that the levels of leach- able contaminants are such that stress corrosion of stainless steel will not result from use of the insulation. d. The information submitted by the applicant regarding control of delta ferrite in austenitic stainless steel welds is reviewed to determine its conformance with the acceptance criteria stated in subsection II.4.d of this SRP.section. The information submitted must state that appropriate filler metal acceptance tests have been conducted and that a certified materials test report has been received. The information should state, also, the applicant's program for compliance with the staff positions in Regulatory Guide 1.31, "Control of Ferrite Content in Stainless Steel Weld Metal." The information submitted by the applicant regarding control of electroslag weld properties for austenitic stainless steel materials is reviewed for conformance with the acceptance criteria discussed in subsection II.4.d of this SRP section. The review of information on the control of electroslag weld properties in austenitic stainless steels is essentially the same as that discussed previously for ferritic steels. However, because electroslag- welded austenitic stainless steels have very high impact resistance and because the Code, Section III, is not concerned with impact testing of these welds, the checks are: (1) a macroetch test is used to provide assurance that the solidification pattern is in ac- cordance with the requirement of the acceptance