Document: NUREG-0800
Document ID: 48fcca4d-4efe-4600-b4ca-9911efb87843
Document Type: srp
Title: and 5.2.1.2.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070446.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.2.1.1
CFR Part: 
CFR Title: 

Content:
B-2300, Section III of the Code and Appendix G, Article G-2000 of the Code. The fracture toughness properties of the ferritic materials selected for Class 2 components in the steam generator must meet the requirements of Subarticle NC-2300 of the Code. c. To meet the requirements of GDC 1, the welding qualification, weld fabrication processes and inspection during fabrication and assembly of the steam generator must be conducted in conformance with the requirements of Section III and IX of the Code. d. To meet the requirements of GDC 1, the corrosion-resistant weld-deposited cladding on the tube sheet and on other primary side components must be fabricated and inspected according to the requirements given in Articles I, II, III, and IV, Part QW of Section IX of the Code. e. To meet the requirements of GDC 1, the welds between the tubes and the tube sheet must meet the requirements of Section III and Section IX of the Code. f. To meet the requirements of GDC 14, the processing and heat treatment of the steam generator tubing will be evaluated on a case basis. Special heat treatment to improve the corrosion resistance of the tubing should have supporting data. 2. Steam Generator Design a. To meet the requirements of GDC 14, 15, and 31, the steam generators 28 must be designed to avoid extensive crevice areas where the tubes pass through the tube sheet, and where the tubes pass through tubing supports, as indicated in Branch Technical Position EMCBMTEB 5-3, 29 "Monitoring of Secondary Side Water Chemistry in PWR Steam Generators." At the tube/tube sheet interface, the tubes should be rolled or expanded for the full depth of the tube sheet to avoid the presence of a crevice. The tube support structure should be designed to promote high velocity flow along the tubes. This will minimize the buildup of corrosion product and sludge in the crevices of the tube/tube support structure. b. To meet the requirements of GDC 15, the corrosion allowance for the steam generator