Document: NUREG-0800
Document ID: aa2826ba-9e50-487f-8166-6282791ae259
Document Type: srp
Title: STEAM AND FEEDWATER SYSTEM MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350076.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.3.6
CFR Part: 
CFR Title: 

Content:
hnique in production welding. c. Regulatory Guide l185, "Code Case Acceptability ASME SectionlIII Materials." This guide lists those ASME Section IIICode Cases that are generally acceptable to the NRC staff. Specific criteria necessary to meet the relevant requirements of the Commission regulations identified above are as follows: 1. Fracture Toughness of Class 2 and 3 Components The fracture toughness properties of the ferritic materials of these com- ponents must meet the following requirements of the Code, Section III, of edition and addenda as invoked by Regulatory Guide 1.26, "Quality Group Classifications and Standards for Water-, Steam-, and Radioactive-Waste- Containing Components of Nuclear Power Plants." NC-2300 - "Fracture Toughness Requirements for Materials" (Class 2) ND-2300 - "Fracture Toughness Requirements for Materials" (Class 3) 2. Materials Selection and Fabrication a. (1) The materials specified for use in Class 2 and 3 components must conform to Appendix I to Section III of the Code, and to Parts A, B, and C of Section II of the Code. 10.3.6-3 Rev. 2 - July 1981 (2) Regulatory Guide 1.85, "Code Case Acceptability ASME Section III Materials," describes acceptable code cases that may be used in conjunction with the above specifications. b. The following criteria are applicable-to all components: (1) Regulatory Guide 1.71, "Welder Qualification for Areas of Limited Accessibility," provides the following criteria for assuring the integrity of welds in locations of restricted direct physical and visual accessibility. (a) The performance qualification should require testing of the welds when conditions of accessibility to production welds are less than 30 to 35 cm (12-14 inches) in any direction from the joint. (b) Requalification is required for different accessibility conditions or when other essential variables listed in the Code, Section IX, are changed. (c) The qualification and requalification tests required by 2.c(1)(a) and (b) above may be