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:
ure toughness of the materials should be as stated in SRP Section 10.3.6, “Steam and Feedwater System Materials,” 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 RCBP such that there is an extremely low probability of abnormal leakage, rapidly propagating failure, and gross rupture; and the quality assurance requirements of Appendix B of 10 CFR Part 50, the following guidelines should be used: 6.1.1-6 Revision 2 - March 2007 i. RG 1.44 describes acceptable criteria for preventing intergranular 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. ii. RG 1.31 describes acceptable criteria for assuring the integrity of welds in austenitic stainless steel ESF components. The control of delta ferrite content of weld filler metal is specified in this guide, which sets forth an acceptable basis for delta ferrite content of weld filler metal. iii. The controls for abrasive work on austenitic stainless steel surfaces should, at a minimum, be equivalent to the controls described in RG 1.37, position C.5 to prevent contamination, which promotes stress corrosion cracking. Tools that contain materials that could contribute to intergranular or stress-corrosion cracking or which, because of previous usage, may have become contaminated with such materials, should not be used on austenitic stainless steel surfaces. iv. Criteria to assure adequate resistance to intergranular stress corrosion cracking (IGSCC) for susceptible boiling water reactors (BWR) austenitic stainless steel ESF piping are described in NUREG-0313 and in Attachment A to Generic Letter (GL) 88-01. The technical bases for