410 stainless steel is a type of martensitic stainless steel that contains 11.5-13.5% chromium, which provides excellent corrosion resistance. It also contains small amounts of carbon, manganese, phosphorus, sulfur, and silicon. The high chromium content of this steel makes it highly resistant to corrosion and staining in a variety of environments, including mild atmospheres, steam, and many mild chemical environments.

This type of stainless steel is commonly used in applications where corrosion resistance is required, such as in the manufacturing of cutlery, tools, and various types of machinery parts. It is also often used in the construction of medical and dental instruments, as well as in the production of valves and pumps.

In addition to its corrosion resistance, 410 stainless steel also has good strength and hardness, which makes it a popular choice for applications that require durability and wear resistance. However, it is less ductile and less formable than other types of stainless steel, and can be prone to cracking under certain conditions.