The difference between SUS304 and SUS316 stainless steel

SUS304 and SUS316 are two common stainless steel materials, with the main difference being their composition and properties. SUS304 stainless steel contains 18% chromium and 8% nickel, while SUS316 stainless steel adds 2% molybdenum on this basis, improving its corrosion resistance, especially in chloride environments.

SUS304 stainless steel is suitable for general environments, with a relatively low price, and is widely used in construction, kitchen utensils, and other applications. SUS316 stainless steel is commonly used in marine environments, chemical equipment, and other applications that require stronger corrosion resistance due to its superior corrosion resistance.

In addition, SUS316 stainless steel has good tensile strength and wear resistance, making it suitable for applications that require high strength, such as the aerospace industry. However, due to higher costs, the choice needs to balance performance and cost.

In fields such as food processing and medical device manufacturing, SUS316 stainless steel is usually preferred because it is more hygienic, has stronger corrosion resistance, and meets relevant hygiene standards.

In summary, the choice between SUS304 and SUS316 stainless steel depends on the specific usage environment, corrosion resistance, strength requirements, and budget considerations. It is necessary to comprehensively weigh various factors based on the actual situation and make the most suitable choice.