Document: NUREG-0800
Document ID: 6cdd237d-c5b3-4a09-8753-54cfe1fea503
Document Type: srp
Title: REACTOR VESSEL MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0631/ML063190007.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.3.1
CFR Part: 
CFR Title: 

Content:
been identified and found to be qualified in accordance with the requirements of Code Sections III and IX. Qualification in accordance with the Code provisions meets the requirements of GDC 1, GDC 30, and 10 CFR 50.55a concerning quality standards. 5. When welding components of ferritic steels as identified in Item 4 above, Code controls are supplemented by conformance with the recommendations of regulatory guides as follows: A. The controls imposed on welding preheat temperatures are in conformance with the recommendations of RG 1.50 since these controls provide reasonable assurance that cracking of components made from low alloy steels will not occur during fabrication and minimize the potential for subsequent cracking. These controls also satisfy the quality standards requirements of GDC 1, GDC 30, and 10 CFR 50.55a. Revision 2 - March 2007 5.3.1-18 B. The controls imposed on electroslag welding of ferritic steels are in conformance with the recommendations of RG 1.34 because the welds fabricated by the process will ensure high integrity and will have a sufficient degree of toughness to furnish adequate safety margins. These controls satisfy the quality standards requirements of GDC 1, GDC 30, and 10 CFR 50.55a. C. The controls imposed during weld cladding of ferritic steel components are in conformance with the recommendations of RG 1.43 because the process used provides reasonable assurance that under-clad cracking will not occur during the weld cladding process. These controls satisfy the quality standards requirements of GDC 1, GDC 30, and 10 CFR 50.55a. 6. When welding components of austenitic stainless steels, Code controls are supplemented by conformance with the recommendations of regulatory guides and other regulatory positions as follows: A. The controls imposed on delta ferrite in austenitic stainless steel welds are in conformance with the recommendations of RG 1.31, as supplemented (for BWRs only) by the positions of GL 88-01 or the recommendations