632 stainless steel is a type of precipitation-hardening stainless steel that is known for its high strength and excellent corrosion resistance. The precipitation-hardening process involves heating the steel to a specific temperature and holding it there for a certain amount of time, allowing the formation of tiny particles within the metal that give it increased strength and hardness.

632 stainless steel is commonly used in applications that require high strength and corrosion resistance, such as in the aerospace industry for components such as turbine blades, exhaust systems, and structural components. It is also used in the oil and gas industry for parts such as pumps, valves, and wellhead equipment.