What are the differences between 201 stainless steel, 304 stainless steel, 316 stainless steel and titanium?

Stainless steel and titanium are commonly used materials in the industrial field. They have their unique advantages in terms of performance, corrosion resistance, and cost. Among them, stainless steel is divided into three types: 201 stainless steel, 304 stainless steel, and 316 stainless steel, and there are also some differences between them.

Firstly, 201 stainless steel is a common stainless steel containing manganese, mainly used in indoor decoration, furniture manufacturing and other fields. Compared with the other two types of stainless steel, 201 steel has lower strength but is more affordable. In terms of corrosion resistance, 201 steel is inferior to 304 and 316 steel.

Secondly, 304 stainless steel is the most commonly used type of stainless steel, mainly composed of 18% chromium and 8% nickel. This type of stainless steel has good corrosion resistance, high-temperature resistance, weldability, and its price is relatively moderate. Therefore, it is widely used in food processing, medical equipment, chemical equipment, and other fields.

Thirdly, 316 stainless steel is similar to 304 stainless steel, but it contains 2%-3% molybdenum, which has better corrosion resistance. 316 stainless steel is more widely used in marine and acidic environments, and it is widely used in the manufacture of chemical equipment, marine equipment, and other fields.

Finally, titanium is a lightweight and high-strength material with excellent corrosion resistance, oxidation resistance, and biocompatibility. Therefore, it has been widely used in aerospace, medical equipment, sports equipment, and other fields. However, the relatively high price of titanium is also one of the reasons that limit its application.

Overall, 201 stainless steel, 304 stainless steel, 316 stainless steel, and titanium all have their pros and cons in different fields. The choice of materials needs to consider multiple factors such as the environment, load conditions, cost, etc.

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