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:
entified and records maintained. The materials specified for use in these systems must be as given in DRAFT Rev. 2 - April 1996 6.1.1-6 Appendix 1I to Section III, Division 1 of the Code, and parts A, B and C of Section II 40 41 of the Code. Regulatory Guide 1.85, "Code Case Acceptability ASME Section III Materials,"42 describes acceptable Code cases that may be used in conjunction with the above specifications. Fracture toughness of the materials shall be as stated in SRP Section 10.3.6, subsection II.1. a. Austenitic Stainless Steels To meet the requirements of GDC 4 relative to compatibility of components with environmental conditions; GDC 14 with respect to fabrication and testing of the reactor coolant pressure boundary so as to have an extremely low probability of abnormal leakage, of rapidly propagating failure, and of gross rupture; and the quality assurance requirements of Appendix B of 10 CFR Part 50 the following guidelines should be used: (1.) Cold worked austenitic stainless steels must have a maximum 0.2% offset 43 yield strength of 620 MPa (90,000 psi) to reduce the probability of stress 44 corrosion cracking in ESF systems. Laboratory stress corrosion test and service experience provide the basis for this criteria. (2.) Regulatory Guide 1.44, "Control of the Use of Sensitized Stainless Steel," describes acceptable criteria for preventing intergranular 45 corrosion of stainless steel components of the ESF. Furnace-sensitized material should not be allowed in the ESF, and methods described in this guide should be followed for testing the materials prior to fabrication, and for ensuring that no deleterious sensitization occurs during welding. (3.) Branch Technical Position MTEB 5-7, "Material Selection and Processing Guidelines for BWR Coolant Pressure Boundary Piping," describes acceptable criteria for the use of austenitic stainless steel piping in boiling water reactors. (See SRP Section 5.2.3.)Criteria to assure adequate resistance to intergranular