Document: NUREG-0800
Document ID: e6a79bdb-930d-4b57-91b9-39db4d8a76f1
Document Type: srp
Title: ENGINEERED SAFETY FEATURES MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0631/ML063190010.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.1.1
CFR Part: 
CFR Title: 

Content:
tion, including the criteria specified for BWR piping susceptible to IGSCC in Attachment A to GL 88-01 or NUREG-0313, where applicable. The methods of controlling sensitized stainless steel in the ESF systems are examined by the reviewer who verifies that the methods are in conformance with RG 1.44. This applies especially to the verification of nonsensitization of the materials, and to the qualification of welding procedures using ASTM A-262. 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. An alternate method of testing for degree of sensitization that has previously been accepted is described in SRP Section 5.2.3, subsection II.4.A. D. Corrosion Allowances. The reviewer determines that corrosion allowances are specified for ESF materials to be exposed to process fluids and that specified allowances are supported by adequate technical bases. The reviewer verifies that specified corrosion allowances are adequate for the proposed design life of affected components and piping. E. Fabrication Controls. The reviewer examines the methods for controlling the amount of delta ferrite in stainless steel weld deposits in accordance with RG 1.31. The reviewer verifies the applicant’s description of abrasive work controls for austenitic stainless steel surfaces is adequate to minimize the cold-working of surfaces and the introduction of contaminants through stress corrosion cracking. The reviewer verifies that the controls of ferritic steel welding are in conformance with subsection II.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. 2. Composition and Compatibility of ESF Fluids. The reviewer considers the composition of the spray solutions and any mixing processes that might occur