Document: NUREG-0800
Document ID: e4b3ba58-3c25-4846-b7b0-40b8e2866ecf
Document Type: srp
Title: CONTROL ROD DRIVE STRUCTURAL MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340667.pdf
Revision Date: 2023-06
Chapter: 4
Section ID: 4.5.1
CFR Part: 
CFR Title: 

Content:
mineralized water are a normal source of water for final cleaning or flushing of funished surfaces. Halogenated hydrocarbon cleaning agents should not be used. III. REVIEW PROCEDURES The reviewer will select and emphasize material from the procedures described below, as may be appropriate for a particular case. To ascertain that the acceptance criteria given in subsection II of this SRP section are met, the reviewer examines the review areas listed in subsection I of this SRP section for the required information, using the following procedures: 1. Materials Specifications The reviewer compares the properties of the materials proposed for the control rod system with Appendix I to Section III of the Code, and Parts A, B, and C of Section II of the Code. He verifies that cold-worked austenitic stainless steels used in fabrication of the reactivity control mechanisms are in conformance with subsection II.1, above. 2. Austenitic Stainless Steel Components Review procedures are similar to those in SRP Section 5.2.3, subsection III.4.a, b, d, and e. The methods of controlling sensitized stainless steel are examined by the reviewer and compared with the positions given in Regulatory Guide 1.44, especially with respect to cleaning and protection from con- tamination during handling and storage, verification of non-sensitization of the material, and qualification of welding process employed in production using ASTM A-262. If 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 alter- nate 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. The methods of controlling and measuring the amount of delta ferrite in