Document: NUREG-0800
Document ID: 2adccc8f-d828-4baf-b696-6ee4f776837b
Document Type: srp
Title: REACTOR INTERNAL AND CORE SUPPORT MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070416.pdf
Revision Date: 2023-06
Chapter: 4
Section ID: 4.5.2
CFR Part: 
CFR Title: 

Content:
e Code, Section III, Division 1 , NG-4000, and the welds must meet thebe examinationed and meet 31 acceptance criteria shownas specified in NG-5000.32 3. Nondestructive Examination of Wrought Seamless Tubular Products and Fittings33 Examination shall be in accordance with the requirements of ASME Code, Section III, 34 Division 1 , NG-2500. 35 The acceptance criteria shall be in accordance with the requirements of ASME Code, Section III, Division 1 , NG-5300. 36 37 4. Austenitic Stainless Steels The acceptance criteria for this area of review are given in SRP Section 5.2.3, "Reactor Coolant Pressure Boundary Materials."subsections II.2 and II.4.a, b, d, and e.38 Regulatory Guide 1.44, "Control of the Use of Sensitized Stainless Steel," describes 39 acceptance criteria for preventing intergranular corrosion of stainless steel components. Furnace sensitized material should not be allowed, and methods described in this guide should be followed for cleaning and protecting austenitic stainless steel from contamination during handling, storage, testing, and fabrication, and for determining the degree of sensitization that occurs during welding. Regulatory Guide 1.31, "Control of Ferrite Content in Stainless Steel Weld Metal," describes acceptable criteria for assuring 40 the integrity of welds in stainless steel components. 4.5.2-5 DRAFT Rev. 3 - April 1996 5. Other Materials All materials used for reactor internals and core support structures must be selected for 41 their compatibility with the reactor coolant, as described in Subarticles NG-2160 and NG-3120 of Section III, Division 1 of the Code. The tempering temperature of 42 martensitic stainless steels and the aging temperature of precipitation-hardened stainless steels should be specified to provide assurance that these materials will not deteriorate in service. Acceptable heat treatment temperatures are aging at 565 C - 595 C (1050 F - 1100 F) for Type 17-4 PH and tempering at 565 C (1050 F) for Type 410 stainless