Have you found the 18/0, 18/8 or 18/10 lables when we buy the stainless steel flatware ?
A: “18/10 stainless steel flatware” it means this flatware contains the 18% to 20% Chromium and 8% to 10% Nickel.
B: “18/0 stainless steel flatware” it means this flatware contains the 16% to 18% Chromium and without Nickel or Nickel content lower than 0.6%.
C: “18/8 stainless steel flatware” it means it contains the 16% to 18% Chromium and 3.5% to 5.5% Nickel.
What’s the Chromium and Nickel ? what is their significance ?
” Chromium” is the main elements which determines the corrosion resistance of stainless steel, because of ” Chromium ” can make the passivation phenomenon in the stainless steel when it produces the oxidizing medium, because it can produces the thinner protective film on the surface, so the chromium content is higher and the corrosion resistance will be more stronger. In addition, the Chromium have very good strengthening effect for mechanical properties and process performance when we use the stainless steel .
” Nickel ” is excellent corrosion resistant materials, as well as it’s also the important alloying elements. But the nickel can’t constitute the stainless steel material which must be exist in stainless steel with Chromium. The Nickel can greatly strengthen the mechanical properties and process performance for stainless steel .