Document: NRC Regulatory Guide
Document ID: 08cebcdf-2e81-4e08-a508-9f6b4701c0a5
Document Type: regulatory_guide
Title: Design, Fabrication, and Materials Code Case Acceptability, ASME Section III (Rev. 40)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2219/ML22195A282.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.84
CFR Part: 
CFR Title: 

Content:
ous versions of this guide. (Note: The NRC did not approve some of these Code Cases in previous versions of this guide.) Table 5. Section III Code Cases That Have Been Superseded by Revised Code Cases on or after July 1, 1974 CODE CASE NUMBER TABLE 5 CODE CASES THAT HAVE BEEN SUPERSEDED BY REVISED CODE CASES ON OR AFTER JULY 1, 1974 REVISION DATE N-4-11 (1337-11) N-4-12 Special Type 403 Modified Forgings or Bars, Section III, Division 1, Class 1 and CS 1/12/05 2/12/08 N-5 (1344-5) Nickel-Chromium, Age-Hardenable Alloys (Alloy X750), Section III 12/13/82 N-7 (1358-5) High Yield Strength Steel, Section III, Division 1, Class 1 Vessels Each referencing safety analysis report should provide the information required by Note 1 in the Code Case. 12/13/82 N-20 (1484-3) N-20-1 SB-163 Nickel-Chromium-Iron Tubing (Alloy 600 and 690) at Nickel-Iron-Chromium Alloy 800 at a Specified Minimum Yield Strength of 40.0 ksi, Section III, Division 1, Class 1 9/5/85 12/7/87 N-20-2 N-20-3 SB-163 Nickel-Chromium-Iron Tubing (Alloy 600 and 690) at Nickel-Iron-Chromium Alloy 800 at a Specified Minimum Yield Strength of 40.0-ksi and Cold Worked Alloy 800 at a yield strength of 47.0-ksi, Section III, Division 1, Class 1 11/30/88 2/26/99 N-31 (1540-2) Elastomer Diaphragm Valves, Section III, Class 2 and 3 Each applicant who applies the Code Case should indicate in the referencing safety analysis report that the service life of the elastomer diaphragm should not exceed the manufacturer’s recommended service life. This recommended service life should not exceed one-third of the minimum cycle life as established by the requirements of Paragraph 3 of the Code Case. In addition, the service life of the elastomer diaphragm should not exceed 5 years, and the combined service and storage life of the elastomer diaphragm should not exceed 10 years. 7/18/85 N-55 (1609-1) Inertia and Continuous Drive Friction Welding, Section I, III, IV, VIII, Division 1 and 2, and IX 4/5/84 N-60 (1618-2) N-60-1 Material