Document: NUREG-0800
Document ID: 638ddb22-e6d2-4b69-855f-e55482aae718
Document Type: srp
Title: STEAM AND FEEDWATER SYSTEM MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070583.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.3.6
CFR Part: 
CFR Title: 

Content:
b. Regulatory Guide 1.71, "Welder Qualification for Areas of Limited Accessibility." This guide describes methods acceptable to the staff for providing better control of welder technique in production welding. c. Regulatory Guide 1.85, "Materials Code Case Acceptability ASME Section III Division IMaterials." This guide lists those ASME Section III Code Cases that are generally 27 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 components 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) 28 ND-2300 - "Fracture Toughness Requirements for Materials" (Class 3) 2. Materials Selection and Fabrication 10.3.6-5 DRAFT Rev. 3 - April 1996 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. (2) Regulatory Guide 1.85, "Materials Code Case Acceptability ASME Section III Division IMaterials," describes acceptable code cases that 29 may be used in conjunction with the above specifications. b. The following criteria are applicable to all Class 2 and 3 components: 30 (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