A high antibacterial performance austenitic stainless steel used in chemical production

Abstract

The invention aims to provide a high-antibacterial-performance austenitic stainless steel applied to chemical production and a manufacturing method thereof. The high-antibacterial-performance austenitic stainless steel and the manufacturing method thereof aim to achieve the effects that under the solid solution and aging heat treatment states of the austenitic stainless steel, a function of effectively resisting high-concentration bacteria (larger than (4-5)*10<6> CFU / mL) is achieved, and the corrosion risk of bacteria microorganisms caused by the use of the titanium alloy material is remarkably reduced. The high-antibacterial-performance austenitic stainless steel comprises the following chemical components of, by weight, 18.0-20.0% of Cr, 8.0-10.5% of Ni, 2.0-4.0% of Cu, 0.5-2% of Ga, 0.1-0.16% of N, less than or equal to 0.03% of C, less than or equal to 0.75% of Si, less than or equal to 2.0% of Mn, less than or equal to 0.045% of P, less than or equal to 0.03% of S and the balanceFe. The high-antibacterial-performance austenitic stainless steel is widely applied to the chemical production containing the high-concentration bacteria, and a storage container and a liquid conveying pipeline are mainly involved.

Description

technical field [0001] The invention relates to the technical field of austenitic stainless steel materials, in particular to an austenitic stainless steel with high antibacterial performance applied to chemical production and a preparation method thereof. Background technique [0002] Conventional stainless steel equipment for transporting or storing liquids, after long-term use, the accumulated scale or impurities will adhere to the inner wall of the pipeline to breed microorganisms. When the amount of liquid in the storage container or pipeline is small or there is no liquid circulation , the residual microorganisms will form a large flora after a certain period of time, which will cause extensive corrosion of the container or pipeline, and the quality of the liquid will also be polluted. With the improvement of people's living standards, antibacterial, antibacterial and antiviral health management has become an issue of great concern in today's society. The traditional w...

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to use antibacterial functional 304LN-Cu austenitic stainless steel for the chemical environment containing bacteria and microorganisms. However, due to the high concentration of bacteria in the chemical environment, it is affected by the limitations of the current antibacterial functional stainless steel. Provide A kind of austenitic stainless steel with high antibacterial performance and its preparation method is an effective way

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