Document: NUREG-0800
Document ID: 4a46b35d-2e81-4517-9716-154b19f57049
Document Type: srp
Title: REACTOR COOLANT PRESSURE BOUNDARY MATERIALS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0631/ML063190006.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.2.3
CFR Part: 
CFR Title: 

Content:
n identified by specification and found to be in conformance with the requirements of Section III of the ASME Code, and [for BWRs only] in conformance with the staff positions of Generic Letter 88-01, “NRC Position on IGSCC in BWR Austenitic Stainless Steel Piping,” which are based upon the technical information and/or recommendations provided in NUREG-0313, Revision 2, “Technical Report on Material Selection and Processing Guidelines for BWR Coolant Pressure Boundary Piping.” Compliance with the above provisions for material specifications satisfies the quality standards requirements of GDC 1, GDC 30, and § 50.55a. The materials of construction of the RCPB exposed to the reactor coolant have been identified and all of the materials are compatible with the primary coolant water, which is chemically controlled in accordance with appropriate technical specifications. This compatibility has been proven by extensive testing and satisfactory performance. This includes conformance with the positions of Regulatory Guide 1.44, “Control of Sensitized Stainless Steel,” and [for BWRs only] conformance with the staff positions of Generic Letter 88-01 which are based upon the technical information and recommendations provided in NUREG-0313, Revision 2. The cast austenitic stainless steels and nickel- chromium-iron alloys to be used as RCPB materials have also been demonstrated to be compatible with reactor coolant under the anticipated environmental conditions of RCPB service. General corrosion of all materials, except unclad carbon and low alloy steel, will be negligible. For these materials, conservative corrosion allowances have been provided for all exposed surfaces in accordance with the requirements of the Code, Section III. Accordingly, all RCPB materials are compatible with the environmental conditions associated with normal operation, maintenance, testing, and postulated accidents, as required by GDC 4. 5.2.3-21 Revision 3 - March 2007 The materials of