Document: NUREG-0800
Document ID: d4acff25-51e1-4891-b590-9ad78ef4833e
Document Type: srp
Title: REACTOR VESSEL MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340633.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.3.1
CFR Part: 
CFR Title: 

Content:
h 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 §50.55a. c. The controls imposed during weld cladding of ferritic steel components are in conformance with the recommendations of Regulatory Guide 1.43, "Control of Stainless Steel Weld Cladding of Low-Alloy Steel Components," 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 §50.55a. 6. When welding components of austenitic stainless steels, Code controls are supplemented by conformance with the recommendations of regulatory guides as follows: a. The controls imposed on delta ferrite in austenitic stainless steel welds are in conformance with the recommendations of Regulatory Guide 1.31, "Control of Ferrite Content in Stainless Steel Weld Metal," because the controls used provide reasonable assurance that the welds will not contain micro cracks. These controls also satisfy the quality standards requirement of GDC 1, GDC 30, and §50.55a and the require- ments of GDC 14 regarding fabrication to prevent RCPB rapid propagating failure. b. The controls imposed on electroslag welding of austenitic stainless steels are in conformance with the recommendations of Regulatory Guide 1.34, for the same reason as stated in item Sb discussed above. 7. The controls (during, all stages of welding) to avoid contamination and sensitization that could cause stress-corrosion cracking in austenitic stainless steels conform with the recommendations of regulatory guides as follows: a. The controls to avoid contamination and sensitization of austenitic stainless steel are in conformance with the recommendations of Regulatory Guide 1.44, "Control of the Use of Sensitized Stainless Steel," because the controls used provide assurance that welded com- ponents