BOGEN persists in using high quality stainless and PVD Coating procedure. 18-10 Stainless contains 18% of chromium and 10% Nickel. These to numbers, 18 and 10, refer to the chromium and nickel content, which gives flatware its rust-resistance and silver-like shine properties. 18-10 stainless steel provides the highest amount of nickel producing the greatest resistance to rust and longest held polish. 18-10 stainless steel is harmless to human, easy to clean, and strong to heat. The 420J2 stainless steel is a popular choice for knife manufacturers. 420J2 stainless steel contains medium quality carbon content and has good corrosion resistance in salt-free atmospheres and in most industrial environments. It is resistant to many chemicals and household cleaner; and, it is also a more durable steel compared to the 440 grades.