Document: NUREG-0800
Document ID: bf62536e-58c7-4cb0-a51f-5c5ce2c21d6b
Document Type: srp
Title: DRAFT Rev. 2 - April
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070423.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.3.2.9
CFR Part: 
CFR Title: 

Content:
ination 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.39 f. Additional controls, beyond those described above, are considered necessary to avoid intergranular stress corrosion cracking (IGSCC) in and near welds in BWR austenitic stainless steel reactor vessel attachments and appurtenences. The additional controls are described in Attachment A to Generic Letter 88-01 and in NUREG-0313. These controls include material and weldment specifications for IGSCC resistant materials, processing techniques, categorization of the IGSCC resistance of installations based upon material properties, treatment history, and post-weld treatments. The technical bases for these controls are described in NUREG-0313.40 The referenced regulatory guides are described in detail in the acceptance criteria of SRP Section 5.2.3, which is reviewed by MTEB EMCB . 41 5. Fracture Toughness The acceptance criteria for this area of review are the requirements of Appendix G of 10 CFR Part 50. These criteria satisfy the requirements of GDC 31 and § 50.55a(i)10 CFR 50.60 regarding materials testing and acceptance standards for fracture toughness. 42 Appendix G requires that the reactor vessel and appurtenances thereto which are made of ferritic materials shall meet the following minimum requirements for fracture toughness during system hydrostatic tests, during conditions of normal operation, and during anticipated operational occurrences: DRAFT Rev. 2 - April 1996 5.3.1-8 a. The ferritic materials shall be tested in accordance with the ASME Code sectionparagraph NB-2300 including: 43 (1) T shall be determined for each material by means of a drop weight test. NDT (2) The materials shall meet the acceptance standards of paragraph NB-2330 of the Code, which states that