In this episode, Gary Coates from the Nickel Institute sits down with co-hosts Heather Allain and Marc Cook to discuss stainless steels. The three chat about: the various series of stainless steel; magnetism as an identification technique; changes in stainless compositions as a function of time; stress corrosion cracking; sustainability in the context of stainless steel; PREN number; material suitability evaluation; temperature limits; and passivation.