Amalfi 6 Piece Steak Knife Set by Ricci Argentieri. Amalfi 6 Pc. Steak Knife Set Stainless steel is usually made up of steel with a portion of chrome and nickel added. The best quality, 18/10 stainless, is made up of 18% chrome, 10% nickel, and 72% steel. The steel itself is extremely hard, and the chrome gives it its high resistance to rust and corrosion, while the nickel adds some brilliance to its look. Also, because of its high strength and hardness, usually only less intricate designs can be made from the stainless. Lastly, contrary to popular belief, stainless steel is NOT stain-proof, but is stain-LESS, as it is spelled.Quality stainless steel is identified by its finish, size and weight. Ricci stainless is European sized, made with the finest materials available, creating the distinctive look and feel that Ricci is known for.