ASME BPVC-III 2, 2023 Edition – Rules for Construction of Nuclear Power Plant Components, Division 2: Code for Concrete Reactor Vessels and Containments

ASME Section III, Division 2 – This Division contains requirements for the material, design, construction, fabrication, testing, examination, and overpressure protection of concrete containment structures, pre-stressed or reinforced. These requirements are applicable only to those components that are designed to provide a pressure retaining or containing barrier. They are not applicable to other support structures, except as they directly affect the components of the systems. This Section contains appendices, both mandatory and non-mandatory, for Division 2 construction.

What are the key changes for 2023 BPVC Section III, Division 2 (ASME BPVC-III-2)?

CC-2331.2, CC-3532.1.7, Table CC-4333-1, and Table D2-VIII-1410-1’s requirements, related to ASTM A615-20, have been updated to align with the current material requirements and grade options listed in the most current ASTM standard.
CC-2466.2, now includes a “Note” to clarify what constitutes a change in heat treatment conditions when pre-stressing element materials.
CC-2522.1.2 has been revised to remove requirement to use full-size test specimens, and test-specimen requirements were adjusted to be in accordance with SA-370.