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:
ndary 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 stress corrosion cracking (IGSCC) for susceptible BWR austenitic stainless steel ESF piping are described in Attachment A to Generic Letter 88-01 (Reference 17) or in NUREG- 0313 (Reference 16). The technical bases for the positions provided in Generic Letter 88-01 are detailed in NUREG-0313. These criteria are applied to piping specified in Generic Letter 88-01. Generic Letter 88- 46 01 and NUREG-0313 criteria used for the evaluation of initial material selection and fabrication include welding controls (e.g., delta ferrite content limits) and material specifications (e.g., carbon content specifications) which are more stringent than specified in Regulatory Guides 1.31 and 1.44 to assure adequate resistance of susceptible piping to IGSCC.47 6.1.1-7 DRAFT Rev. 2 - April 1996 (4.) Regulatory Guide 1.31, "Control of Ferrite Content in Stainless Steel Weld Metal," describes acceptable criteria for assuring the integrity of 48 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. (5) The controls for abrasive work on austenitic stainless steel surfaces should, as a minimum, be equivalent to the controls described in Regulatory Guide 1.37 position C.5 to prevent contamination which promotes stress corrosion cracking. Tools which 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.49 b. Ferritic Steel Welding To meet the requirements of General Design Criterion 1 related to general quality assurance and Codes and Standards, Appendix