Chromium is essentially Stainless Steel and the grade shown on the packaging is the type of stainless steel and the amount of Chromium or other materials are in it . Ours shows a "Grade 24" which puts it in a a Chrmomium containing stainless steel category. Specifically
"Ferritic Stainless SteelThe family of Ferritic stainless steel alloys has chromium content of more than 10.5% and a low carbon content. They are plain chromium grades, display magnetic properties and cannot be hardened. They are not suitable for fabrication and are moderately resistant to corrosion. They can be polished and are used for the manufacture of automotive exhausts and sometimes for welding applications. "
http://www.buzzle.com/articles/what-are-the-different-grades-of-stainless-steel.html
