Stainless steel plate grade classification and use

—Grade classification of stainless steel plates
Stainless steel plates are classified according to different standards and uses, and can usually be divided into the following three aspects:
1. Classification of stainless steel plate series: Stainless steel plate series are divided into: austenitic series, martensite series, and ferrite series according to material composition and corrosion resistance.
2. Standard classification of stainless steel plates: According to international standards, stainless steel plates are divided into AISI (United States), JIS (Japan), GB (China) and other standards. The grades of stainless steel plates corresponding to different standards are slightly different.
3. Classification of stainless steel plate uses: According to the scope of use and special requirements, stainless steel plates can be divided into: stainless steel plates for architectural decoration, stainless steel plates for industry, stainless steel plates for food hygiene, stainless steel plates for medical equipment, etc.
—The advantages, disadvantages and scope of application of stainless steel plate grades
1. Austenitic series: It has good plasticity and welding properties and is widely used in the manufacture of various chemical containers and processing equipment. It can also be used to make watches, hinges and other precision parts. However, due to its weak corrosion resistance, it is generally not suitable for use in corrosive environments.
2. Martensitic series: good mechanical properties and high strength, suitable for manufacturing high-end pressure vessels, heavy machinery, aircraft parts, etc. However, due to its weak welding performance, it is generally not suitable for manufacturing thin-walled pipes and other precision parts that require high strength.
3. Ferrite series: It has strong corrosion resistance and is suitable for making chemical equipment, marine equipment, sewage treatment equipment, lamps and sanitary appliances in salt spray environments. However, its plasticity and toughness are poor, and it is susceptible to heat and stress corrosion.
To sum up, choosing the appropriate stainless steel plate grade can be determined according to the use environment and machine requirements, thereby ensuring its excellent performance and extending its life.