Document: NUREG-0800
Document ID: 7c7e043f-0cf6-4d85-ad06-3f01128bc7f8
Document Type: srp
Title: (ENiCrFe-7), and 5.14 (ERNiCrFe-7)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0703/ML070380192.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.11
CFR Part: 
CFR Title: 

Content:
he ASME Code, as supplemented by Regulatory Guide 1.50. ii. Follows Regulatory Guide 1.34. iii. Follows Regulatory Guide 1.71. With respect to the qualification of the welder or welding operators when limited accessibility is an issue, these qualifications may be waived provided that 100-percent radiographic and/or ultrasonic examination of the completed welded joint is performed. In these cases, the examination procedures and acceptance standards should meet the requirements of Section III of the ASME Code. Records of the examination reports and radiographs should be retained as part of the quality assurance documentation for the completed weld. iv. Follows Regulatory Guide 1.43. 4. Fabrication and Processing of Austenitic Stainless Steel (if austenitic stainless steel is used for pressure boundary applications) A. Limiting Susceptibility to Cracking Various factors can make austenitic stainless steel susceptible to stress-corrosion cracking. These factors include the yield strength of the material, exposure of the material to contaminants during cleaning and operation, and presence or absence of material sensitization. Consistent with GDC 14, 15, and 31, limiting the potential for stress-corrosion cracking provides assurance that (1) the probability of abnormal leakage, rapidly propagating failure, and gross rupture is extremely low, (2) the RCPB design conditions are not exceeded during operation, and (3) sufficient margin is available to prevent rapidly propagating failure. The fabrication and processing of austenitic stainless steel steam generator components is acceptable if it complies with 10 CFR Part 50, 10 CFR 50.55a(c), 10 CFR 50.55a(d), and 10 CFR 50.55a(e) and meets the following: 5.4.2.1-9 Revision 3 - March 2007 i. Limits the yield strength to 620 megapascal (MPa) (90,000 pounds per square inch (psi)). Laboratory stress-corrosion cracking tests and service experience provide the basis for the criterion that the cold-worked austenitic stainless steels