Which metal is commonly used for surgical instruments to prevent rust and corrosion?

Stainless steel is commonly used for surgical instruments due to its excellent resistance to rust and corrosion. The composition of stainless steel includes chromium, which forms a passive layer of chromium oxide on the surface of the metal. This layer protects the underlying steel from moisture and other corrosive elements, making it ideal for the sterile environment required in surgery. Its durability, strength, and ability to withstand repeated sterilization processes also make it a preferred choice for healthcare settings.

Other options include materials that either rust more easily or are not as beneficial in medical applications. For example, carbon steel can be strong but is prone to rusting if not properly maintained. Aluminum, while lightweight and resistant to certain forms of corrosion, does not have the strength needed for many surgical tools. Bronze, although it has some corrosion-resistant properties, is not commonly used in surgical instruments as stainless steel is.