Document: NUREG-0800
Document ID: 78c093cc-6cc4-4fac-aea2-087f774d42c3
Document Type: srp
Title: CONTROL ROD DRIVE STRUCTURAL MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070414.pdf
Revision Date: 2023-06
Chapter: 4
Section ID: 4.5.1
CFR Part: 
CFR Title: 

Content:
ethods of controlling sensitized stainless steel are 45 examined by the reviewer and compared with the positions given in Regulatory Guide 1.44, especially with respect to cleaning and protection from contamination during handling and storage, verification of non-sensitization of the material, and qualification of welding process employed in production using ASTM A-262 (Reference 10) . If 46 alternative methods of testing the qualification welds for degree of sensitization are proposed by the applicant, the reviewer determines if these are satisfactory, taking into account branch positions taken on previous applications and the degree of equivalence of the alternate methods. The reviewer may ask the applicant to justify the technical basis for any departures for the cited positions. Alternative tests that have been accepted by the branch include the use of ASTM A-708 (Reference 11) . 47 The methods of controlling and measuring the amount of delta ferrite in stainless steel weld deposits are examined by the reviewer and compared to the positions in Regulatory Guide 1.31, "Control of Ferrite Content in Stainless Steel Weld Metal," especially with 48 respect to the filler metal acceptance procedures for the determination of delta ferrite 4.5.1-7 DRAFT Rev. 3 - April 1996 content. If alternative positions are proposed by the applicant, the reviewer determines if these are satisfactory, taking into account branch positions taken on previous applications. The reviewer may ask the applicant to justify the technical basis for any departures from the acceptance criteria stated in subsection II.2 of this SRP section. The applicant's description of abrasive work controls for austenitic stainless steel surfaces is reviewed and is verified as adequate to minimize the cold-working of surfaces and the introduction of contaminants that may promote stress corrosion cracking.49 3. Other Materials The reviewer examines the information provided in the applicant's safety analysis report