T/CNEA 102.3-2021 Pressurized water reactor pressure vessel components welding - Part 3: Welding process qualification

Scope

Scope: This document specifies the welding process evaluation for pressure-bearing components, core support structures, and support members of pressurized water reactors; the welding process evaluation for overlay welding; the welding process evaluation for composite metal materials; the welding process evaluation for heat exchange tubes and tube plates; the rules, test methods, and qualification standards for temper welding. Other reactor types may refer to and use this document. This document applies to welding methods such as stick arc welding (111), submerged arc welding (12), tungsten inert gas shielded welding (141), gas shielded arc welding (13), electron beam welding (51), laser welding (52), and electroslag overlay welding (72). This document provides two welding process evaluation methods and requirements (hereinafter referred to as "Method 1" and "Method 2"). The requirements for Method 1 are described in Sections 5-8, and the requirements for Method 2 are described in Sections 9-16. The welding process evaluation method to be used should be specified in the design documents, but the welding process evaluation requirements of the two methods cannot be mixed. Main technical content: This document is Part 3 of T/CNEA 102 "Welding of Pressurized Water Reactor Pressure-bearing Components". This document consists of 16 chapters. Among them, Chapters 1-3 are normative provisions, and Chapters 4-16 are the main content of Part 3: Welding Process Evaluation for Pressurized Water Reactor Pressure-bearing Components. The main content includes: General Provisions; Two welding process evaluation methods and requirements; The requirements for Method 1 are described in Sections 5-8, and the requirements for Method 2 are described in Sections 9-16.

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