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:
sing the following procedure: A. Primary Review AreaMaterials and Fabrication69 1. Material Specifications The MTEB reviewer verifies that the materials proposed for the ESF are in conformance 70 with Appendix I of Section III, Division 1 of the Code, and with parts A, B, and C of 71 Section II of the Code., and/or with acceptable material Code Cases as identified in Regulatory Guide 1.85. For ESF portions of the austenitic stainless steel piping 72 specified in Generic Letter 88-01, the reviewer verifies that materials are in conformance with staff positions on BWR materials described in Attachment A to Generic Letter 88- 01 or the recommendations of NUREG-0313 for stress corrosion resistant materials.73 2. Nickel-Chromium-Iron Alloys Operating experience has indicated that certain nickel-chromium-iron alloys (e.g., Inconel) are susceptible to cracking due to corrosion. Inconel 690 alloy has improved corrosion resistance in comparison to Inconel alloy 600 previously used in reactor applications. Where nickel-chromium-iron alloys are proposed for use as ESF materials, the reviewer verifies that an acceptable technical basis is either identified (based upon demonstrated satisfactory use in similar applications) or presented by the applicant to support use of the material under the expected environmental conditions (e.g., exposure to the reactor coolant). Particular review emphasis is placed upon the corrosion resistance and stress corrosion cracking resistance properties of the proposed nickel- chromium-iron alloy(s).74 6.1.1-13 DRAFT Rev. 2 - April 1996 3. Austenitic Stainless Steels HeThe reviewer verifies that cold-worked austenitic stainless steels used in fabrication 75 of the ESF and associated controls for fabrication are in conformance with the criteria specified in subsection II.A.1.a of this SRP section, including the criteria specified for 76 BWR piping susceptible to IGSCC in Attachment A to Generic Letter 88-01 or NUREG- 0313, where applicable.77 The