Stainless steel sheets are classified into several series based on alloy composition and microstructure. Common models include the 300 series (such as 304 and 316) and the 400 series (such as 430). Different models vary in corrosion resistance, strength, and applicable environments.
304 stainless steel sheet (GB grade 0Cr18Ni9) is a general-purpose austenitic stainless steel with good overall performance. It is widely used in building decoration, kitchenware, appliance parts, and chemical equipment. Its corrosion resistance is suitable for neutral or weakly acidic environments, such as sinks, countertops, and pipes.
316 stainless steel sheet, with the addition of molybdenum to 304, significantly improves corrosion resistance, especially its resistance to chloride ion attack. It is suitable for coastal areas, chemical equipment, food processing machinery, and medical equipment. For example, it performs excellently in kitchen sinks, piping systems, and marine environments.
430 stainless steel sheet is a ferritic stainless steel with a high chromium content but low nickel content, resulting in lower cost. It is mainly used in automotive trim parts, appliance housings, and building decoration materials, suitable for applications where high corrosion resistance is not required.
Stainless steel sheets have applications in a wide range of fields: in construction, they are used for countertops, backsplashes, and structural components; in kitchens and bathrooms, they are used to make sinks, tableware, and shelves; and in industry, they are used for chemical containers, ship components, and food processing machinery. When selecting a model, environmental factors should be considered. For example, in coastal areas, 316 is preferred due to its resistance to salt spray corrosion, while 304 is sufficient for ordinary indoor environments.
