The numbers"18/10" and "18/0" are simply figures that illustrate the amount of chromium and nickel content present in stainless steel. Chrome is added to aid the steel in corrosion resistance and the nickel is added for a soft silver lustre. 18/10 stainless steel contains 18% chromium and 10% nickel content.18/0 stainless steel contains 18% chromium and 0% nickel matter. Knives are made from 18/0 stainless steel to give it a better cutting edge and to make them less brittle but 18/0 is less resistant to corrosion.