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:
ction III, Division 1 5/2/18 N-891 Alternative Requirements to Appendix XXVI, XXVI-2400, XXVI-4130, and XXVI-4131 for Inspection and Repair of Indentations for Polyethylene Pipe and Piping Components, Section III, Division 1 12/17/18 N-893 Use of Alloy Steel Bar and Mechanical Tubing in Class 2 and 3 Patented Mechanical Joints and Fittings, Section III, Division 1 4/19E N-900 Alternative Rules for Level D Service Limits of Class 1, 2, and 3 Piping Systems, Section III, Division 1 3/19E N-901 Use of ASME SA-494 Grade M35-1 for Line Valve Bodies and Bonnets, and Bodies, Bonnets, and Yokes of Pressure Relief Valves for Class 2 and 3 Construction, Section III, Division 1 4/19E N-902 Thickness and Gradient Factors for Piping Fatigue Analyses, Section III, Division 1 5/19E N-904 Alternative Rules for Simplified Elastic–Plastic Analysis, Section III, Division 1 6/19E N-905 Alternate Design Fatigue Curves to Those Given in For Section III Appendices, Mandatory Appendix I, Figures I-9.1 and I-9.1M, Section III, Division 1 6/19E N-908 Use of Ferritic/Austenitic Wrought WPS32750/CRS32750 Fittings of Seamless or Welded Construction Conforming to SA-815, Class 3, Section III, Division 1 7/19E N-910 Use of 25Cr-7Ni-4Mo-N (Alloy UNS S32750 Austenitic/Ferritic Duplex Stainless Steel) Forgings, Plate, and Welded and Seamless Pipe and Tubing Conforming to SA-182, SA-240, SA-789, or SA-790, Section III, Division 1 7/19E DG-1405, Page 12 CODE CASE NUMBER TABLE 1 ACCEPTABLE SECTION III CODE CASES DATE OR SUPPLEMENT/ EDITION N-919 Alternative Fatigue Evaluation Method to Consider Environmental Effects on Class 1 Components Section III, Division 1 2/21E N-920 Alternative Fatigue Design Curves for Ferritic Steels With Ultimate Tensile Strengths (UTS) ≤ 80 ksi (552 MPa) and Austenitic Steels, Section III, Division 1 2/21E DG-1405, Page 13 2. Conditionally Acceptable Section III Code Cases The NRC finds the Code Cases listed in Table 2 to be acceptable for application in the design and