201 stainless steel is an austenitic type of stainless steel that belongs to the chromium-nickel-manganese family. It is often classified as a lower-cost alternative to more common stainless steel grades, such as 304 and 316. This grade is primarily composed of iron, chromium, and nickel, with a notable addition of manganese. The composition typically includes 16-18% chromium, 3.5-5.5% nickel, and a higher manganese content than other stainless steel grades, which enhances its strength and ductility.