On June 28, 2024, Taiyuan Iron and Steel (Group) Co., Ltd. successfully applied for a patent titled "Control Method for the Crystal Corrosion Performance and Mechanical Strength of Austenitic Stainless Steel Clad Plate", with the application publication number CN118256701A, filed on March 19, 2024.

This invention is applicable to the production and manufacturing of austenitic stainless steel clad plates. The control method for the crystal corrosion performance and mechanical strength of austenitic stainless steel clad plates is tailored to different raw material properties by establishing various heat treatment processes to meet the production needs of the clad plates. By controlling the chemical composition and properties of the raw materials, the quality of the clad plate products is improved and enhanced.

The invention addresses the issues of low elongation and reduced intergranular corrosion performance during the high-temperature tempering process of austenitic stainless steel clad plates. It also solves the problem of difficulty in processing the clad plates during the later stages of equipment manufacturing, as well as the issue of high yield strength and low elongation after high-temperature tempering. It meets the customers' requirements for the corrosion resistance of certain special materials of clad plates. Since the implementation of this invention, it has completely resolved the bottleneck issue of reduced corrosion resistance in austenitic stainless steel clad plates during high-temperature tempering processes, reduced the cost of heat treatment for clad plates, and met the special requirements of special materials for clad plates.

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