Alloy 303 alloy is a free-machining stainless steel specifically designed to exhibit improved machinability. It is a nonmagnetic
austenitic stainless steel which is not hardenable by heat treatment. Sulfur is added to produce the free-machining characteristics. The good mechanical and corrosion resistant properties of the lower-sulfur grade are retained to the extent possible. This steel possesses non-galling properties that make disassembly of parts easy-and help to avoid scratching or galling in moving parts.