‘Stainless’ is a word coined with reference to the creation of these steels for use as cutlery. Stainless was adopted as a generic term for such steels. Currently, it covers a broad array of steel grades and types for oxidation or corrosion resistant purposes. Stainless steels include iron alloys that have a minimum of 10.5 percent chromium. Additional alloying components become added to enhance their properties and structure like cryogenic toughness, strength, and formability. Stainless steels include metals like: Copper Titanium Molybdenum Nickel Also, non-metal additions are made, with the primary ones being: Nitrogen Carbon The primary stainless-steel requirement is that it must be resistant to corrosion for a specified environment or application. The choice of a certain stainless steel “grade” or “type” must first meet the requirements of corrosion resistance. Other physical or mechanical properties might have to be taken into consideration to accomplish the overall requirements for service performance.