This document is Part 11 of T/CNEA101 "Materials for Pressure-Containing Components of Pressurized Water Reactors". This document has a total of 17 chapters, of which Chapters 1-3 are normative provisions, and Chapters 4-17 are the main contents of Part 11 of Pressurized Water Reactor Pressure Component Materials: Chromium-Nickel Stainless Steel Composite Steel Plate. The main contents include: ordering requirements, manufacturing, chemical composition, mechanical properties, number of tests and retests, specimens, finished product analysis, allowable deviations, workmanship quality, surface quality and appearance, metallurgical bonding quality, welding repair of cladding, delivery General requirements, quality certification documents and product markings.